RP173Q(SC-88A) is the NRND product as of April,2023
RP173x Series
11 V Input 150 mA LDO
No. EA-256-230802
OUTLINE
The RP173x is a voltage regulator featuring 150 mA output and low supply current of Typ. 2.0 µA. It consists
of a voltage reference unit, an error amplifier, a resistor-net for voltage setting, a current limit circuit, a chip
enable circuit and a Reverse Current Protection Circuit. RP173x is suitable for the power source such as the
equipment being in the standby-mode. The A version with CE input pin has reduced CE pull-up resistance to
make its supply current ultra low.
The RP173x has Max.11 V Input voltage and is applicable to the portable communication equipment that
requires the 2-cell Li-ion battery. Also it is applicable to the non-portable communication equipments. As the
RP173x includes Reverse Current Protection Circuit, there is little leakage current, if it is used as back-up
circuit.
Packages are available in SOT-23-5, SC-88A, and 1-mm square DFN(PL)1010-4 packages. High density
mounting of the ICs on boards is possible.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
Output Current ............................................................. Typ. 150 mA
Supply Current ............................................................. Typ. 2.0 µA
Standby Current ........................................................... Typ. 0.2 µA
Dropout Voltage ........................................................... Typ. 0.13 V (IOUT = 30 mA, VOUT = 3.0 V)
Typ. 0.90 V (IOUT = 150 mA, VOUT = 3.0 V)
Output Voltage Accuracy.............................................. ±1.0% (1.5 V < VOUT ≤ 5.5 V, Ta = 25°C)
Line Regulation ............................................................ Typ. 0.02%/V
Packages ..................................................................... DFN(PL)1010-4, SC-88A, SOT-23-5
Input Voltage Range .................................................... 2.5 V to Set VOUT + 6.5 V (Max. 11 V)
Output Voltage Range .................................................. 1.2 V to 5.5 V (0.1 V step)
Built-in Reverse Current Protection Circuit
Short Current Limit ....................................................... Typ. 45 mA
Built-in Peak Current Limit Circuit
Output capacitors ......................................................... 0.1 µF or more
APPLICATIONS
•
•
•
•
Power source for portable communication equipments.
Power source for battery-powered equipments.
Power source for electrical appliances such as cameras, VSRs and camcorders.
Power source for digital home appliances.
1
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
SELECTION GUIDE
The output voltage, the auto-discharge function(1), and the package for the ICs are user-selectable options.
Selection Guide
Product Name
Package
Quantity per Reel
Pb Free
Halogen Free
DFN(PL)1010-4
10,000 pcs
Yes
Yes
RP173Qxx2∗-TR-FE
SC-88A
3,000 pcs
Yes
Yes
RP173Nxx1∗-TR-FE
SOT-23-5
3,000 pcs
Yes
Yes
RP173Kxx1∗-TR
xx : The output voltage can be designated in the range of 1.2 V (12) to 5.5 V (55) in 0.1 V step.
∗ : The auto discharge function at off state are options as follows.
(A) "L" active, without auto discharge function at off state (Pull-up resistance is not built-in)
(B) "H" active, without auto discharge function at off state
(D) "H" active, with auto discharge function at off state
(1)
Auto-discharge function quickly lowers the output voltage to 0 V, when the chip enable signal is switched from the
active mode to the standby mode, by releasing the electrical charge accumulated in the external capacitor.
2
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
BLOCK DIAGRAMS
RP173xxxxA
RP173xxxxB
VOUT VDD
VDD
Vref
VOUT
Vref
CE
Current Limit
Current Limit
Reverse
Detector
Reverse
Detector
GND CE
GND
(Pull-up resistance is not built-in.)
RP173xxxxD
VDD
VOUT
Vref
Current Limit
CE
Reverse
Detector
GND
3
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
PIN DESCRIPTIONS
Top View
4
3
Bottom View
3
5
4
(1)
1
2
2
5
4
(mark side)
(mark side)
1
1
1
2
4
3
1
2
3
RP173K [DFN(PL)1010-4]
RP173Q (SC-88A)
RP173N (SOT-23-5)
Pin Configuration
Pin Configuration
Pin Configuration
RP173K Pin Descriptions
Pin No.
Symbol
Description
1
VOUT
Output Pin
2
GND
Ground Pin
3
CE /CE
4
VDD
Chip Enable Pin
Input Pin
RP173Q Pin Descriptions
Pin No.
Symbol
1
2(2)
Description
CE /CE
Chip Enable Pin
NC
No Connection
3
GND
Ground Pin
4
VOUT
Output Pin
5
VDD
Input Pin
RP173N Pin Descriptions
Pin No.
Symbol
Description
1
VDD
Input Pin
2
GND
3
CE /CE
Chip Enable Pin
4
NC
No Connection
5
VOUT
Ground Pin
Output Pin
(1) The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate
level). It is recommended that the tab be connected to the ground plane on the board, or otherwise be left floating.
(2) Pin No. 2 is connected to the bottom of the IC. It is recommended that the pin be connected to the ground plane on the
board, or otherwise be left floating so that there is no contact with other potentials.
4
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Symbol
Item
Rating
Unit
VIN
Input Voltage
12
V
VCE
Input Voltage (CE pin)
12
V
VOUT
Output Voltage
−0.3 to 6.0
V
IOUT
Output Current
165
mA
DFN(PL)1010-4
Power
Dissipation(1)
PD
SC-88A
SOT-23-5
JEDEC STD. 51-7
Test Land Pattern
Standard Test Land
Pattern
JEDEC STD. 51-7
Test Land Pattern
800
380
mW
660
Tj
Junction Temperature Range
−40 to 125
°C
Tstg
Storage Temperature Range
−55 to 125
°C
ABSOLUTE MAXIMUM RATINGS
Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause permanent damage
and may degrade the lifetime and safety for both device and system using the device in the field. The functional
operation at or over these absolute maximum ratings is not assured.
RECOMMENDED OPERATING CONDITIONS
Recommended Operating Conditions
Symbol
Item
VIN
Input Voltage
Ta
Operating Temperature Range
Rating
2.5 to
11.0(2)
−40 to 85
Unit
V
°C
RECOMMENDED OPERATING CONDITIONS
All of electronic equipment should be designed that the mounted semiconductor devices operate within the
recommended operating conditions. The semiconductor devices cannot operate normally over the recommended
operating conditions, even if they are used over such conditions by momentary electronic noise or surge. And the
semiconductor devices may receive serious damage when they continue to operate over the recommended operating
conditions.
(1)
(2)
Refer to POWER DISSIPATION for detailed information.
VSET + 6.5 V ≤ 11.0 V
5
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
ELECTRICAL CHARACTERISTICS
Unless otherwise noted, VIN = Set VOUT + 1.0 V, IOUT = 1 mA, CIN = COUT = 0.1 µF.
The specifications surrounded by
are guaranteed by design engineering at −40°C ≤ Ta ≤ 85°C.
RP173xxxxA
Symbol
Item
Conditions
Ta = 25°C
VOUT
Output Voltage
−40°C ≤ Ta ≤ 85°C
IOUT
Typ.
VOUT > 1.5 V
x0.99
x1.01
V
VOUT ≤ 1.5 V
−15
15
mV
VOUT > 1.5 V
x0.982
x1.018
V
VOUT ≤ 1.5 V
−28
27
mV
Output Current
∆VOUT/∆IOUT Load Regulation
Min.
(Ta = 25°C)
Max.
Unit
150
0.1 mA ≤ IOUT ≤ 150 mA
−30
mA
−3
35
mV
Refer to the PRODUCTSPECIFIC ELECTRICAL
CHARACTERISTICS
VDIF
Dropout Voltage
IOUT = 150 mA
ISS
Supply Current
IOUT = 0 mA
2.0
3.7
µA
Standby Current
VIN = VIN (Max.)
VCE = VIN
0.2
0.6
µA
0.02
0.20
%/V
Istandby
∆VOUT/∆VIN Load Regulation
RR
Ripple Rejection
VIN
Input Voltage
ISC
Short Current Limit
Circuit
VCEH
CE Input Voltage "H"
VCEL
CE Input Voltage "L"
Reverse Current
IREV
VREV_DET
(1)
VREV_REL(1)
Set VOUT + 0.5 V ≤ VIN ≤ VIN (Max.)
When VOUT ≤ 2.0 V,
2.5 V ≤ VIN ≤ VIN (Max.)
f = 1 kHz,
Ripple 0.2 Vp−p, IOUT = 10 mA
*When VOUT < 2.0 V, VIN = 3.0 V
30
dB
1.2 ≤ VOUT < 4.5
2.5
VSET + 6.5
4.5 ≤ VOUT ≤ 5.5
2.5
11
VOUT = 0 V
45
mA
1.7
0 ≤ VIN ≤ 11.0 V, VOUT ≥ 1.5 V
Reverse Current
Protection Mode
0 ≤ VIN ≤ 11.0 V, VOUT ≥ 1.5 V
Detection Offset, VREV
= VDD - VOUT
Reverse Current
Protection Mode
0 ≤ VIN ≤ 11.0 V, VOUT ≥ 1.5 V
Release Offset
V
V
0.8
V
0
0.16
µA
55
100
mV
70
120
mV
All of units are tested and specified under the pulse load conditions such that Tj ≈ Ta = 25°C except for Ripple Rejection.
(1)
The operation coverage of the Reverse Current Protection Circuit is VOUT ≥ 1.5 V. However, under the condition of VIN
= VOUT = 0 V, always the Reverse Current Protection Circuit is operating.
6
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
Unless otherwise noted, VIN = Set VOUT + 1.0 V, IOUT = 1 mA, CIN = COUT = 0.1 µF.
The specifications surrounded by
are guaranteed by design engineering at −40°C ≤ Ta ≤ 85°C.
RP173xxxxB/D
Symbol
Item
Conditions
Ta = 25°C
VOUT
Output Voltage
−40°C ≤ Ta ≤ 85°C
IOUT
Typ.
VOUT > 1.5 V
x0.99
x1.01
V
VOUT ≤ 1.5 V
−15
15
mV
VOUT > 1.5 V
x0.982
x1.018
V
VOUT ≤ 1.5 V
−28
27
mV
Output Current
∆VOUT/∆IOUT Load Regulation
Min.
(Ta = 25°C)
Max.
Unit
150
0.1 mA ≤ IOUT ≤ 150 mA
−30
mA
−3
35
mV
Refer to the PRODUCTSPECIFIC ELECTRICAL
CHARACTERISTICS
VDIF
Dropout Voltage
IOUT = 150 mA
ISS
Supply Current
IOUT = 0 mA
2.0
3.7
µA
Standby Current
VIN = VIN (Max.)
VCE = 0 V
0.2
0.6
µA
0.02
0.20
%/V
Istandby
∆VOUT/∆VIN Load Regulation
RR
Ripple Rejection
VIN
Input Voltage
ISC
Short Current Limit
Circuit
IPD
CE Pull-down Current
VCEH
CE Input Voltage "H"
VCEL
CE Input Voltage "L"
IREV
Reverse Current
VREV_DET
(1)
VREV_REL(1)
RLOW
Set VOUT + 0.5 V ≤ VIN ≤ VIN (Max.)
When VOUT ≤ 2.0 V,
2.5 V ≤ VIN ≤ VIN (Max.)
f = 1kHz,
Ripple 0.2 Vp-p, IOUT = 10 mA
*When VOUT < 2.0 V, VIN = 3.0 V
30
dB
1.2 ≤ VOUT < 4.5
2.5
VSET + 6.5
4.5 ≤ VOUT ≤ 5.5
2.5
11
VOUT = 0 V
45
0.30
mA
0.90
1.7
0 ≤ VIN ≤ 11.0 V, VOUT ≥ 1.5 V
Reverse Current
Protection Mode
0 ≤ VIN ≤ 11.0 V, VOUT ≥ 1.5 V
Detection Offset, VREV
= VDD - VOUT
Reverse Current
Protection Mode
0 ≤ VIN ≤ 11.0 V, VOUT ≥ 1.5 V
Release Offset
Auto-discharge Nch Tr.
ON Resistance
VIN = 7.0 V, VCE = 0 V
(RP173xxxxD only)
V
µA
V
0.8
V
0
0.16
µA
55
100
mV
70
120
mV
380
Ω
All of units are tested and specified under the pulse load conditions such that Tj ≈ Ta = 25°C except for Ripple Rejection.
(1)
The operation coverage of the Reverse Current Protection Circuit is VOUT ≥ 1.5 V. However, under the condition of VIN
= VOUT = 0 V, always the Reverse Current Protection Circuit is operating.
7
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
PRODUCT-SPECIFIC ELECTRICAL CHARACTERISTICS
RP173x Product-specific Electrical Characteristics
VOUT
Ta
=
25°C
Product Name
−40°C ≤ Ta ≤ 85°C
Min.
Typ.
Max.
Min.
Typ.
Max.
RP173x12xx
RP173x12xx5
RP173x13xx
RP173x14xx
RP173x15xx
RP173x16xx
RP173x17xx
RP173x17xx5
RP173x18xx
RP173x18xx5
RP173x19xx
RP173x20xx
RP173x21xx
RP173x22xx
RP173x23xx
RP173x24xx
RP173x25xx
RP173x26xx
RP173x27xx
RP173x28xx
RP173x28xx5
RP173x29xx
RP173x30xx
RP173x31xx
RP173x32xx
RP173x33xx
RP173x34xx
RP173x35xx
RP173x36xx
RP173x37xx
RP173x38xx
RP173x39xx
RP173x40xx
RP173x41xx
RP173x42xx
RP173x43xx
RP173x44xx
RP173x45xx
RP173x46xx
RP173x47xx
RP173x48xx
RP173x49xx
RP173x50xx
RP173x51xx
RP173x52xx
RP173x53xx
RP173x54xx
RP173x55xx
1.185
1.235
1.285
1.385
1.485
1.584
1.683
1.733
1.782
1.832
1.881
1.980
2.079
2.178
2.277
2.376
2.475
2.574
2.673
2.772
2.822
2.871
2.970
3.069
3.168
3.267
3.366
3.465
3.564
3.663
3.762
3.861
3.960
4.059
4.158
4.257
4.356
4.455
4.554
4.653
4.752
4.851
4.950
5.049
5.148
5.247
5.346
5.445
1.200
1.250
1.300
1.400
1.500
1.600
1.700
1.750
1.800
1.850
1.900
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.850
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
5.100
5.200
5.300
5.400
5.500
1.215
1.265
1.315
1.415
1.515
1.616
1.717
1.768
1.818
1.869
1.919
2.020
2.121
2.222
2.323
2.424
2.525
2.626
2.727
2.828
2.879
2.929
3.030
3.131
3.232
3.333
3.434
3.535
3.636
3.737
3.838
3.939
4.040
4.141
4.242
4.343
4.444
4.545
4.646
4.747
4.848
4.949
5.050
5.151
5.252
5.353
5.454
5.555
1.172
1.222
1.272
1.372
1.472
1.571
1.669
1.719
1.768
1.817
1.866
1.964
2.062
2.160
2.259
2.357
2.455
2.553
2.651
2.750
2.799
2.848
2.946
3.044
3.142
3.241
3.339
3.437
3.535
3.633
3.732
3.830
3.928
4.026
4.124
4.223
4.321
4.419
4.517
4.615
4.714
4.812
4.910
5.008
5.106
5.205
5.303
5.401
1.200
1.250
1.300
1.400
1.500
1.600
1.700
1.750
1.800
1.850
1.900
2.000
2.100
2.200
2.300
2.400
2.500
2.600
2.700
2.800
2.850
2.900
3.000
3.100
3.200
3.300
3.400
3.500
3.600
3.700
3.800
3.900
4.000
4.100
4.200
4.300
4.400
4.500
4.600
4.700
4.800
4.900
5.000
5.100
5.200
5.300
5.400
5.500
1.227
1.277
1.327
1.427
1.527
1.629
1.731
1.782
1.832
1.883
1.934
2.036
2.138
2.240
2.341
2.443
2.545
2.647
2.749
2.850
2.901
2.952
3.054
3.156
3.258
3.359
3.461
3.563
3.665
3.767
3.868
3.970
4.072
4.174
4.276
4.377
4.479
4.581
4.683
4.785
4.886
4.988
5.090
5.192
5.294
5.395
5.497
5.599
VDIF
Typ.
Max.
1.680
1.680
1.630
1.630
1.480
1.480
1.480
1.480
1.160
1.160
1.160
1.160
1.160
1.160
0.900
0.900
0.900
0.900
0.900
0.900
0.900
0.900
0.610
0.610
0.610
0.610
0.610
0.610
0.610
0.610
0.610
0.610
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
0.390
2.590
2.590
2.490
2.490
2.230
2.230
2.230
2.230
2.190
2.190
2.190
2.190
2.190
2.190
1.470
1.470
1.470
1.470
1.470
1.470
1.470
1.470
1.050
1.050
1.050
1.050
1.050
1.050
1.050
1.050
1.050
1.050
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
0.760
8
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
THEORY OF OPERATION
REVERSE CURRENT PROTECTION CIRCUIT
The RP173 Series include a Reverse Current Protection Circuit, which stops the reverse current from VOUT
pin to VDD pin or to GND pin when VOUT becomes higher than VIN.
Usually, the LDO using Pch output transistor contains a parasitic diode between VDD pin and VOUT pin.
Therefore, if VOUT is higher than VIN, the parasitic diode becomes forward direction. As a result, the current
flows from VOUT pin to VDD pin.
The ICs of this series switches the mode to the reverse current protection mode before VIN becomes lower
than VOUT by connecting the parasitic diode of Pch output transistor to the backward direction, and connecting
the gate to VOUT pin. As a result, the Pch output transistor is turned off and the all the current pathways from
VOUT pin to GND pin are shut down to maintain the reverse current lower than [IREV] of the Electrical
Characteristics.
Switching to either the normal mode or to the reverse current protection mode is determined by the
magnitude of VIN voltage and VOUT voltage. For the stable operation, offset and hysteresis are set as the
threshold. The detection/ release thresholds of both normal and reverse current protection modes are specified
by [VREV_DET] and [VREV_REL] of the Electrical Characteristics. Therefore, the minimum dropout voltage under the
small load current condition is restricted by the value of [VREV_REL].
Fig.1 and Fig.2 show the diagrams of each mode, and Fig.3 shows the load characteristics of each mode.
When giving the VOUT pin a constant-voltage and decreasing the VIN voltage, the dropout voltage will become
lower than the [VREV_DET]. As a result, the reverse current protection starts to function to stop the load current.
By increasing the dropout voltage higher than the [VREV_REL], the protection mode will be released to let the load
current to flow. If the dropout voltage to be used is lower than [VREV_REL], the detection and the release may be
repeated.
The operation coverage of the Reverse Current Protection Circuit is VOUT ≥ 1.5V. However, under the
condition of VIN=0V, always the reverse current protection mode is operating.
VDD
Reverse
Detector
VDD
Reverse
Detector
IOUT
VOUT
VOUT
Vref
Vref
CE
GND
Fig. 1 Normal Mode
IREV
GND
CE
Fig. 2 Reverse Current Protection Mode
9
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
VIN/VOUT [V]
VIN
VREV_ REL
VREV_ DET
VOUT
IOUT
IOUT/IREV
Output/Reverse Current
Input/Output Voltage
No. EA-256-230802
Normal Mode
Reverse Current Protection Mode
Normal Mode
0
IREV
Fig. 3 Reverse Current Protection Mode Detection/ Release &
Reverse Current/ Output Current Characteristics
10
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
APPLICATION INFORMATION
TYPICAL APPLICATIONS
VDD
C1
CE Control
VOUT
VOUT
RP173x
CE
C2
GND
Recommended External Components
Symbol
C2 (COUT)
Description
0.1 µF, GRM155B31C104KA87D, MURATA
NOTES ON SELECTING EXTERNAL COMPONENTS
Phase Compensation
In these ICs, phase compensation is made for securing stable operation even if the load current is varied.
For this purpose, use a 0.1µF or more capacitor C2.
In case of using a tantalum capacitor, the output may be unstable due to inappropriate ESR. Therefore, the
full range of operating conditions for the capacitor in the application should be considered.
PCB Layout
Make VDD and GND lines sufficient. If their impedance is high, noise pickup or unstable operation may result.
Connect a capacitor C1 with a capacitance value as much as 0.1µF or more between VDD and GND pin, and
as close as possible to the pins.
Set external components, especially the output capacitor C2, as close as possible to the ICs, and make
wiring as short as possible.
11
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
TECHNICAL NOTES
POWER ACTIVATION
If the ICs are started up with VIN and VCE under the no-load condition, the both pin voltages have to be started
up with faster than 2.0V/s. If the IC is started up with slower than 2.0V/s under the no-load condition, start up
the IC only with VCE.
ESR vs. Output Current
When using these ICs, consider the following points: The relations between IOUT (Output Current) and ESR
of an output capacitor are shown below. The conditions when the white noise level is under 40 μV (Avg.) are
marked as the hatched area in the graph.
Measurement Conditions
Frequency Band: 10 Hz to 2 MHz
Temperature
: −40°C to 85°C
C1, C2
: 0.1 µF
RP173x0121x
RP173x301x
V IN=2.5V～7.7V
100
10
10
ESR (Ω)
ESR (Ω)
V IN=3.0V～9.5V
100
1
0.1
1
0.1
0.01
0.01
0
25
50
75
100
125
150
Output Current (mA)
0
25
50
75
100
125
150
Output Current (mA)
RP173x551x
V IN=5.5V～11V
100
ESR (Ω)
10
1
0.1
0.01
0
25
50
75
100
125
150
Output Current (mA)
12
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
TYPICAL CHARACTERISTICS
Note: Typical Characteristics are intended to be used as reference data; they are not guaranteed.
1) Output Voltage vs. Output Current (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = 25°C)
RP173x12xx
RP173x18xx
2.0
1.8
1.2
Output Voltage VOUT (V)
Output Voltage VOUT (V)
1.4
1.0
0.8
0.6
Vdd=2.5V
Vdd=3.2V
Vdd=4.2V
Vdd=5.5V
Vdd=7.7V
0.4
0.2
0
0.0
0
100
200
300
1.6
1.4
1.2
Vdd=2.8V
Vdd=3.8V
Vdd=5.5V
Vdd=8.3V
1.0
0.8
0.6
0.4
0.2
0
0.0
400
0
Output Current IOUT (mA)
100
200
300
400
Output Current IOUT (mA)
RP173x30xx
RP173x55xx
Output Voltage VOUT (V)
6
5
4
3
Vdd=6.5V
Vdd=11V
2
1
00
0
100
200
300
400
Output Current IOUT (mA)
2) Output Voltage vs. Input Voltage (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = 25°C)
RP173x12xx
RP173x18xx
2.0
1.8
1.2
1.0
0.8
0.6
IOUT=1mA
0.4
IOUT=30mA
IOUT=50mA
0.2
Output Voltage VOUT (V)
Output Voltage VOUT (V)
1.4
1.6
1.4
1.2
1.0
0.8
IOUT=1mA
0.6
IOUT=30mA
0.4
IOUT=50mA
0.2
0
0.0
0
0.0
0
2
4
Input Voltage VIN (V)
6
0
2
4
6
8
Input Voltage VIN (V)
13
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
RP173x55xx
3.5
6
3.0
5
Output Voltage VOUT (V)
Output Voltage VOUT (V)
RP173x30xx
2.5
2.0
1.5
IOUT=1mA
1.0
IOUT=30mA
IOUT=50mA
0.5
0
0.0
4
3
IOUT=1mA
2
IOUT=30mA
1
IOUT=50mA
0
0
2
4
6
8
0
2
4
6
8
10
Input Voltage VIN (V)
Input Voltage VIN (V)
3) Supply Current vs. Input Voltage (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = 25°C)
RP173x18xx
2.5
2.5
2.0
2.0
Supply Current I SS (µA)
Supply Current I SS (µA)
RP173x12xx
1.5
1.0
0.5
0
0.0
0
2
4
1.5
1.0
0.5
0.00
6
0
2
Input Voltage VOUT (V)
6
8
Input Voltage VOUT (V)
RP173x30xx
RP173x55xx
2.5
2.5
2.0
2.0
Supply Current I SS (µA)
Supply Current I SS (µA)
4
1.5
1.0
0.5
1.5
1.0
0.5
0.00
0.00
0
2
4
6
Input Voltage VOUT (V)
8
0
2
4
6
8
10
Input Voltage VOUT (V)
14
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
4) Output Voltage vs. Temperature (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, IOUT = 1 mA)
RP173x18xx
1.24
1.84
1.23
1.83
Output Voltage VOUT (V)
Output Voltage VOUT (V)
RP173x12xx
1.22
1.21
1.20
1.19
1.18
1.17
1.82
1.81
1.80
1.79
1.78
1.77
-50
-25
0
25
50
75
100
-50
-25
Temperature Topt (°C)
25
50
75
100
75
100
Temperature Topt (°C)
RP173x30xx
RP173x55xx
3.03
5.56
3.02
5.54
Output Voltage VOUT (V)
Output Voltage VOUT (V)
0
3.01
3.00
2.99
2.98
2.97
5.52
5.50
5.48
5.46
5.44
5.42
2.96
-50
-25
0
25
50
75
-50
100
-25
Temperature Topt (°C)
0
25
50
Temperature Topt (°C)
5) Dropout Voltage vs. Output Current (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF)
RP173x30xx
2000
800
1800
700
Dropout Voltage VDIF (mV)
Dropout Voltage VDIF (mV)
RP173x12xx
1600
1400
1200
1000
800
85℃
600
25℃
400
-40℃
200
0
0
25
50
75
100
125
Output Current IOUT (mA)
150
600
85℃
500
25℃
400
-40℃
300
200
100
0
0
25
50
75
100
125
150
Output Current IOUT (mA)
15
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
RP173x55xx
500
Dropout Voltage VDIF (mV)
450
85℃
400
25℃
350
-40℃
300
250
200
150
100
50
0
0
25
50
75
100
125
150
Output Current IOUT (mA)
6) Dropout Voltage vs. Set Output Voltage (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = 25°C)
RP173x
Dropout Voltage VDIF (mV)
1800
1600
1400
1200
Iout=150mA
1000
Iout=50mA
800
Iout=30mA
600
400
200
0
0
1
2
3
4
5
6
Set Output Voltage VREG (V)
7) Minimum Operating Voltage (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = −40 to 85°C)
Input Voltage VIN (V)
4.0
3.5
3.0
2.5
2.0
0
25
50
75
100
125
150
Output Current IOUT (mA)
16
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
8) Ripple Rejection vs. Input Bias Voltage (C1 = none, C2 = Ceramic 0.1 µF, Ripple = 0.2 Vp-p, Ta = 25°C）
RP173x28xx
RP173x28xx
IOUT=1mA
50
40
30
20
100Hz
1kHz
10kHz
100kHz
10
0
2
4
6
8
IOUT=30mA
60
Ripple Rejection RR (dB)
Ripple Rejection RR (dB)
60
50
100Hz
1kHz
10kHz
100kHz
40
30
20
10
0
10
2
Input Bias Voltage VIN (V)
4
6
8
10
Input Bias Voltage VIN (V)
RP173x28xx
IOUT=50mA
Ripple Rejection RR (dB)
60
50
100Hz
1kHz
10kHz
100kHz
40
30
20
10
0
2
4
6
8
10
Input Bias Voltage VIN (V)
9) Ripple Rejection vs. Temperature (C1 = none, C2 = Ceramic 0.1 µF, Ripple = 0.2 Vp-p, Ta = 25°C)
RP173x12xx
VIN=2.5V
70
60
Iout=1mA
50
Iout=30mA
40
Iout=50mA
30
20
10
0
0.1
1
10
100
Frequency f (kHz)
VIN=2.8V
70
Ripple Rejection RR (dB)
Ripple Rejection RR (dB)
RP173x18xx
1000
60
Iout=1mA
50
Iout=30mA
40
Iout=50mA
30
20
10
0
0.1
1
10
100
1000
Frequency f (kHz)
17
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
RP173x30xx
RP173x55xx
VIN=4.0V
60
Iout=1mA
Iout=30mA
50
Iout=50mA
40
VIN=6.5V
70
Ripple Rejection RR (dB)
Ripple Rejection RR (dB)
70
30
20
10
0
60
Iout=1mA
50
Iout=30mA
Iout=50mA
40
30
20
10
0
0.1
1
10
100
1000
0.1
1
Frequency f (kHz)
10
100
1000
Frequency f (kHz)
10) Input Transient Response (C1 = none, C2 = Ceramic 0.1 µF, tr = tf = 5.0 µs, Ta = 25°C)
RP173x18xx
IOUT=1mA
Input Voltage
3.0
2.5
1.6
1.4
1.2
Output Voltage
0.6
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
2.5
2.0
1.8
Output Voltage
1.6
1.4
0
0.1
0.2
RP173x30xx
4.0
3.2
3.0
Output Voltage
2.6
0.3
0.4
Time t (ms)
0.5
0.6
0.7
0.8
Output Voltage VOUT (V)
4.5
3.4
0.2
0.6
0.7
0.8
IOUT=1mA
Input Voltage VIN (V)
Output Voltage VOUT (V)
Input Voltage
0.1
0.5
5.5
5.0
0
0.4
RP173x55xx
IOUT=1mA
2.4
-0.1
0.3
Time t (ms)
Time t (ms)
2.8
3.0
2.2
1.2
-0.1
0.8
3.5
Input Voltage
8.0
7.5
Input Voltage
7.0
6.5
5.9
5.7
5.5
Output Voltage
5.3
Input Voltage VIN (V)
0.8
Output Voltage VOUT (V)
3.5
1.0
4.0
4.0
Input Voltage VIN (V)
Output Voltage VOUT (V)
IOUT=1mA
Input Voltage VIN (V)
RP173x12xx
5.1
4.9
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Time t (ms)
18
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
RP173x18xx
IOUT=30mA
IOUT=30mA
3.0
2.5
1.6
1.4
1.2
Output Voltage
0.8
0.6
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
2.5
2.0
1.8
Output Voltage
1.6
1.4
0
0.1
0.2
4.0
3.4
3.2
3.0
Output Voltage
2.6
0.3
0.4
0.5
0.6
0.7
Output Voltage VOUT (V)
4.5
Input Voltage VIN (V)
Output Voltage VOUT (V)
Input Voltage
0.2
0.5
0.6
0.7
0.8
IOUT=30mA
5.5
5.0
0.1
0.4
RP173x55xx
IOUT=30mA
0
0.3
Time t (ms)
RP173x30xx
2.4
-0.1
3.0
2.2
Time t (ms)
2.8
3.5
Input Voltage
1.2
-0.1
0.8
4.0
7.5
Input Voltage
7.0
6.5
5.9
5.7
5.5
5.3
Output Voltage
5.1
4.9
-0.1
0.8
8.0
Input Voltage VIN (V)
1.0
Input Voltage VIN (V)
Output Voltage VOUT (V)
3.5
Input Voltage
Output Voltage VOUT (V)
4.0
Input Voltage VIN (V)
RP173x12xx
0
0.1
0.2
Time t (ms)
0.3
0.4
0.5
0.6
0.7
0.8
Time t (ms)
11) Load Transient Response (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, tr = tf = 0.5 µs, Ta = 25°C)
RP173x18xx
0
1.4
1.2
1.0
Output Voltage
0.8
0.6
-0.1
0
0.1
0.2
0.3 0.4
Time t (ms)
0.5
0.6
0.7
0.8
Output Voltage VOUT (V)
10
Output Current
1mA⇔10mA
1.6
VIN=2.8V
20
Output Current IOUT (mA)
Output Voltage VOUT (V)
VIN=2.5V
20
10
0
Output Current
1mA⇔10mA
2.2
2.0
1.8
1.6
Output Voltage
1.4
1.2
-0.1
0
0.1
0.2
0.3 0.4
0.5
0.6
0.7
Output Current IOUT (mA)
RP173x12xx
0.8
Time t (ms)
19
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
RP173x55xx
0
3.2
3.0
Output Voltage
2.4
-0.1
0
0.1
0.2
0.3 0.4
0.5
0.6
0.7
10
5.9
5.7
5.5
5.3
Output Voltage
5.1
4.9
-0.1
0.8
0
0.1
Time t (ms)
0
1.2
Output Voltage
0
0.1 0.2 0.3
1.8
1.5
Output Voltage
1.2
0
3.0
Output Voltage
0.4 0.5 0.6 0.7 0.8
Time t (ms)
0.1 0.2 0.3
0.4 0.5 0.6 0.7 0.8
VIN=6.5V
150
50
0
Output Voltage VOUT (V)
3.3
0.1 0.2 0.3
0
RP173x55xx
Output Current IOUT (mA)
Output Voltage VOUT (V)
Output Current
50mA⇔100mA
0
50
Time t (ms)
100
2.1
-0.1
150
2.1
0.9
-0.1
0.4 0.5 0.6 0.7 0.8
VIN=4.0V
2.4
0.8
Output Current
50mA⇔100mA
2.4
RP173x30xx
2.7
0.7
100
Time t (ms)
3.6
0.6
VIN=4.0V
Output Voltage VOUT (V)
50
Output Current
50mA⇔100mA
1.5
0.3
-0.1
0.5
150
100
0.6
0.3 0.4
RP173x18xx
Output Current IOUT (mA)
Output Voltage VOUT (V)
VIN=4.0V
0.9
0.2
Time t (ms)
RP173x12xx
1.8
0
Output Current
1mA⇔10mA
Output Current IOUT (mA)
2.6
20
150
100
Output Current
50mA⇔100mA
5.8
5.5
5.2
Output Voltage
4.9
4.6
-0.1
0
0.1 0.2 0.3
50
0
Output Current IOUT (mA)
2.8
Output Voltage VOUT (V)
10
Output Current
1mA⇔10mA
3.4
VIN=6.5V
20
Output Current IOUT (mA)
Output Voltage VOUT (V)
VIN=4.0V
Output Current IOUT (mA)
RP173x30xx
0.4 0.5 0.6 0.7 0.8
Time t (ms)
20
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
12) Turn on Speed (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = 25°C)
RP173x18xx
0.5
0
Iout=0mA
Iout=1mA
Iout=30mA
Output Voltage
Iout=100mA
0
0.0
-100 -50
0
Iout=1mA
2.0
Iout=30mA
Iout=100mA
1.0
0
50 100 150 200 250 300 350 400
Time t (µs)
0
Iout=1mA
Output Voltage
0
0.0
-100 -50
0
Output Voltage VOUT (V)
2
Iout=0mA
1.0
VIN=6.5V
CE Input Voltage VCE (V)
Output Voltage VOUT (V)
CE Input Voltage
0V ⇒ 4.0V
Iout=100mA
Output Voltage
6
4
Iout=30mA
0
RP173x55xx
VIN=4.0V
2.0
2
Iout=0mA
0
0.0
-100 -50
50 100 150 200 250 300 350 400
Time t (µs)
4
CE Input Voltage
0V ⇒2.8V
RP173x30xx
3.0
6
CE Input Voltage 0V ⇒4.0V
CE Input Voltage
0V ⇒6.5V
5
3
0
Iout=0mA
6.0
Iout=1mA
4.0
Iout=30mA
Output Voltage
Iout=100mA
2.0
0
0.0
-100 -50
50 100 150 200 250 300 350 400
Time t (µs)
8
0
CE Input Voltage VCE (V)
1.0
4
2
CE Input Voltage
0V ⇒2.5V
1.5
6
Output Voltage VOUT (V)
Output Voltage VOUT (V)
CE Input Voltage 0V ⇒4.0V
VIN=2.8V (IOUT=0,1,30mA)
VIN=4.0V (IOUT=100mA)
CE Input Voltage VCE (V)
VIN=2.5V (IOUT=0,1,30mA)
VIN=4.0V (IOUT=100mA)
CE Input Voltage VCE (V)
RP173x12xx
50 100 150 200 250 300 350 400
Time t (µs)
13) Turn off Speed with CE pin (C1 = Ceramic 0.1 µF, C2 = Ceramic 0.1 µF, Ta = 25°C)
RP173x12xx
RP173x18xx
0
CE Input Voltage
2.5V ⇒0V
Iout=0mA
Output Voltage
1.0
Iout=30mA
Iout=100mA
0.5
0.0
0
-100 -50
Iout=1mA
0
50
100 150 200 250 300 350 400
Times t (µs)
6
4
CE Input Voltage
4.0V ⇒0V
CE Input Voltage VCE (V)
1.5
2
Output Voltage VOUT (V)
4
CE Input Voltage
4.0V ⇒0V
VIN=2.8V(IOUT=0,1,30mA)
VIN=4.0V(IOUT=100mA)
6
CE Input Voltage VCE (V)
Output Voltage VOUT (V)
VIN=2.5V(IOUT=0,1,30mA)
VIN=4.0V(IOUT=100mA)
2
0
Iout=0mA
CE Input Voltage
2.8V ⇒0V
2.0
Iout=1mA
Output Voltage
1.0
0
0.0
-100 -50
0
50
Iout=30mA
Iout=100mA
100 150 200 250 300 350 400
Times t (µs)
21
RP173Q(SC-88A) is the NRND product as of April,2023
RP173x
No. EA-256-230802
RP173x30xx
RP173x55xx
Iout=0mA
3.0
Output Voltage
1.5
0.0
0
-100 -50
0
Iout=1mA
Iout=30mA
Iout=100mA
0
50
100 150 200 250 300 350 400
Times t (µs)
7.5
5.0
CE Input Voltage
6.5V ⇒0V
CE Input Voltage VCE (V)
4.5
2
Output Voltage VOUT (V)
4
CE Input Voltage
4.0V ⇒0V
VIN=6.5V
6
CE Input Voltage VCE (V)
Output Voltage VOUT (V)
VIN=4.0V
2.5
0.0
Iout=0mA
6.0
Output Voltage
4.0
Iout=30mA
Iout=100mA
2.0
0
0.0
-100 -50
Iout=1mA
0
50
100 150 200 250 300 350 400
Times t (µs)
22
RP173Q(SC-88A) is the NRND product as of April,2023
POWER DISSIPATION
DFN(PL)1010-4
PD-DFN(PL)1010-4-(85125)-JE-C
The power dissipation of the package is dependent on PCB material, layout, and environmental conditions.
The following measurement conditions are based on JEDEC STD. 51.
Measurement Conditions
Item
Measurement Conditions
Environment
Mounting on Board (Wind Velocity = 0 m/s)
Board Material
Glass Cloth Epoxy Plastic (Four-Layer Board)
Board Dimensions
76.2 mm × 114.3 mm × 0.8 mm
Outer Layer (First Layer): Less than 95% of 50 mm Square
Inner Layers (Second and Third Layers): Approx. 100% of 50 mm Square
Outer Layer (Fourth Layer): Approx. 100% of 50 mm Square
Copper Ratio
0.2 mm × 21 pcs
Through-holes
Measurement Result
(Ta = 25°C, Tjmax = 125°C)
Item
Measurement Result
Power Dissipation
800 mW
Thermal Resistance (ja)
ja = 125°C/W
Thermal Characterization Parameter (ψjt)
ψjt = 58°C/W
ja: Junction-to-Ambient Thermal Resistance
ψjt: Junction-to-Top Thermal Characterization Parameter
1000
900
800
Power Dissipation (mW)
800
700
600
500
400
300
200
100
0
0
25
50
75 85
Ambient Temperature (°C)
100
125
Power Dissipation vs. Ambient Temperature
Measurement Board Pattern
i
RP173Q(SC-88A) is the NRND product as of April,2023
DFN(PL)1010-4
PACKAGE DIMENSIONS
Ver. A
∗
DFN(PL)1010-4 Package Dimensions (Unit: mm)
*
∗ The tab on the bottom of the package shown by blue circle is a substrate potential (GND). It is recommended that this
tab be connected to the ground plane on the board but it is possible to leave the tab floating.
i
RP173Q(SC-88A) is the NRND product as of April,2023
POWER DISSIPATION
SC-88A
Ver. B
The power dissipation of the package is dependent on PCB material, layout, and environmental conditions.
The following conditions are used in this measurement.
Measurement Conditions
Item
Standard Test Land Pattern
Environment
Mounting on Board (Wind Velocity = 0 m/s)
Board Material
Glass Cloth Epoxy Plastic (Double-Sided Board)
Board Dimensions
40 mm × 40 mm × 1.6 mm
Top Side: Approx. 50%
Copper Ratio
Bottom Side: Approx. 50%
Through-holes
φ 0.5 mm × 44 pcs
(Ta = 25°C, Tjmax = 125°C)
Measurement Result
Item
Standard Test Land Pattern
Power Dissipation
380 mW
Thermal Resistance (θja)
θja = 263°C/W
Thermal Characterization Parameter (ψjt)
ψjt = 75°C/W
θja: Junction-to-Ambient Thermal Resistance
ψjt: Junction-to-Top Thermal Characterization Parameter
500
40
380
300
200
40
Power Dissipation (mW)
400
100
0
0
25
50
75 85
100
125
Ambient Temperature (°C)
Power Dissipation vs. Ambient Temperature
Measurement Board Pattern
i
RP173Q(SC-88A) is the NRND product as of April,2023
PACKAGE DIMENSIONS
SC-88A
Ver. A
SC-88A Package Dimensions
i
RP173Q(SC-88A) is the NRND product as of April,2023
POWER DISSIPATION
SOT-23-5
Ver. A
The power dissipation of the package is dependent on PCB material, layout, and environmental conditions.
The following measurement conditions are based on JEDEC STD. 51-7.
Measurement Conditions
Item
Measurement Conditions
Environment
Mounting on Board (Wind Velocity = 0 m/s)
Board Material
Glass Cloth Epoxy Plastic (Four-Layer Board)
Board Dimensions
76.2 mm × 114.3 mm × 0.8 mm
Copper Ratio
Outer Layer (First Layer): Less than 95% of 50 mm Square
Inner Layers (Second and Third Layers): Approx. 100% of 50 mm Square
Outer Layer (Fourth Layer): Approx. 100% of 50 mm Square
Through-holes
0.3 mm × 7 pcs
(Ta = 25°C, Tjmax = 125°C)
Measurement Result
Item
Measurement Result
Power Dissipation
660 mW
Thermal Resistance (ja)
ja = 150°C/W
Thermal Characterization Parameter (ψjt)
ψjt = 51°C/W
ja: Junction-to-Ambient Thermal Resistance
ψjt: Junction-to-Top Thermal Characterization Parameter
Power Dissipation vs. Ambient Temperature
Measurement Board Pattern
i
RP173Q(SC-88A) is the NRND product as of April,2023
SOT-23-5
PACKAGE DIMENSIONS
Ver. A
2.9±0.2
1.1±0.1
1.9±0.2
0.8±0.1
(0.95)
4
1
2
0～0.1
0.2min.
+0.2
1.6-0.1
5
2.8±0.3
(0.95)
3
0.4±0.1
+0.1
0.15-0.05
SOT-23-5 Package Dimensions
i
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
The products and the product specifications described in this document are subject to change or discontinuation of production without
notice for reasons such as improvement. Therefore, before deciding to use the products, please refer to our sales representatives for the
latest information thereon.
The materials in this document may not be copied or otherwise reproduced in whole or in part without the prior written consent of us.
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The products listed in this document are intended and designed for use as general electronic components in standard applications (office
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8-1. Quality Warranty Period
In the case of a product purchased through an authorized distributor or directly from us, the warranty period for this product shall be
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Note that such delivery or refund is sole and exclusive remedies to your company for the defective product.
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information.
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