AS78LXX
100mA POSITIVE VOLTAGE REGULATOR
Description
Features
The AS78LXX series are three terminal positive regulators designed
Output Current up to 100mA
for a wide variety of applications including local, on-card regulation.
Fixed Output Voltages of 5V, 12V and 15V
Output Voltage Accuracy of ±5% over the Full Temperature
thermal shutdown protection, and safe-area compensation which
Internal Short Circuit Current Limiting
make them virtually immune from output overload. If adequate heat
Internal Thermal Overload Protection
sinking are provided, these regulators can deliver output currents up
No External Components
to 100mA.
Output Transistor Safe-Area Protection
The AS78LXX series are available in TO-92 (bulk or ammo packing),
Applications
This series of regulators are complete with internal current limiting,
Range
SOT-89 and SOIC-8 packages.
Consumer Electronics
Microprocessor Power Supplies
Mother Boards
Pin Assignments
Z Package
Z Package
R Package
(TO-92(Bulk Packing))
(TO-92(Ammo Packing))
(SOT-89 Option 1)
3
INPUT
3
INPUT
2
GND
2
GND
1
OUTPUT
1
OUTPUT
GND
R Package
M Package
(SOT-89 Option 2)
(SOIC-8)
GND
3
INPUT
2
GND
1
AS78LXX
Document number: DS36515 Rev. 4 - 2
1
8
INPUT
GND
2
7
GND
GND
3
6
GND
NC
4
5
NC
OUTPUT
OUTPUT
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3
INPUT
2
GND
1
OUTPUT
November 2021
© Diodes Incorporated
AS78LXX
Typical Applications Circuit
V IN
AS78LXX
3 (8)
INPUT
VOUT
1 (1)
OUTPUT
GND
0.33F
0.1F
2 (2, 3, 6, 7)
A (B)
A for 3-pin
B for 8-pin
Functional Block Diagram
3 (8)
INPUT
R9
Q9
D1
Zener
Q14
R16
Q21
Q24
R20
C1
R1
R21
Q18
R17
R12
R23
1 (1)
Q6
Q3
OUTPUT
R2
2
Q10
Q22
R3
Q11
Q1
R18
R7
Q7
Q4
Q16
R4
R14
Q8
R11
R5
R15
R6
Q23
Q13
Q2
Q15
Q5
R19
C2
Q19
Q17
Q12
R2
R8
R10
Q20
R13
2 (2, 3, 6, 7)
GND
A (B)
A for 3-pin
B for 8-pin
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Absolute Maximum Ratings (Note 1)
Symbol
VIN
TJ
TLEAD
PD
TSTG
JA
ESD
ESD
Note.
Parameter
Input Voltage
Operating Junction Temperature
Lead Temperature (Soldering, 10sec)
Power Dissipation
Storage Temperature Range
Thermal Resistance
ESD (Human Body Model)
ESD (Machine Model)
Rating
36
150
260
750
-65 to +150
TO-92
Unit
V
°C
°C
mW
°C
°C/W
V
V
+180
2000
200
1. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended
Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Symbol
VIN
TJ
Parameter
Min
Input Voltage
Max
AS78L05
30
AS78L12
36
AS78L15
36
Operating Junction Temperature Range
-40
Unit
V
+125
°C
Electrical Characteristics
AS78L05 (@ VIN = 10V, IOUT = 40mA, CIN = 0.33µF, COUT = 0.1µF, TJ = +25°C, Bold typeface applies over -40°C ≤ TJ ≤ +125°C, unless
otherwise specified.)
Symbol
VOUT
VRLINE
VRLOAD
IQ
△IQ
PSRR
VDROP
NO
△VOUT/△T
(△VOUT/VOUT
△T
θJC
Note:
Parameter
Conditions
Output Voltage
7V ≤ VIN ≤ 20V, 1mA ≤ IOUT ≤
100mA, PD ≤ 0.75W
Line Regulation
Load Regulation
Quiescent Current
7V ≤ VIN ≤ 20V
1mA ≤ IOUT ≤ 100mA
Quiescent Current Change
Ripple Rejection
Dropout Voltage
Output Noise Voltage
Output Voltage
Coefficient
Thermal Resistance
Temperature
8V ≤ VIN ≤ 20V
1mA ≤ IOUT ≤ 40mA
f = 120Hz, 8V ≤ VIN ≤ 18V
IOUT = 40mA
IOUT = 100mA
10Hz ≤ f ≤ 100kHz (Note 2)
IOUT = 5mA
TO-92
SOT-89
SOIC-8
Min
4.8
Typ
5.0
4.75
5.25
8
10
3
47
Max
5.2
150
60
5.5
1.5
0.1
62
1.7
1.8
40
0.42
Unit
V
mV
mV
mA
mA
dB
2.0
2.3
V
µV
mV/°C
84
ppm/°C
40
28.3
62
°C/W
2. 0.01µF minimum load capacitance is recommended to limit high frequency noise.
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Electrical Characteristics (cont.)
AS78L05C (@ VIN = 10V, IOUT = 40mA, CIN = 0.33µF, COUT = 0.1µF, TJ = +25°C, Bold typeface applies over -40°C ≤ TJ ≤ +125°C, unless
otherwise specified.)
Symbol
VOUT
VRLINE
VRLOAD
IQ
△IQ
Quiescent Current Change
Ripple Rejection
VDROP
Dropout Voltage
θJC
Output Noise Voltage
Output Voltage
Coefficient
Conditions
Min
5.0
7V ≤ VIN ≤ 20V
1mA ≤ IOUT ≤ 100mA
Line Regulation
Load Regulation
Quiescent Current
PSRR
NO
△VOUT/△T
(△VOUT/VOUT
△T
Note:
Parameter
Output Voltage
Temperature
8V ≤ VIN ≤ 20V
1mA ≤ IOUT ≤ 40mA
F = 120Hz, 8V ≤ VIN ≤ 18V
IOUT = 40mA
47
IOUT = 100mA
10Hz ≤ f ≤ 100kHz (Note 2)
IOUT = 5mA
TO-92
SOT-89
SOIC-8
Thermal Resistance
Typ
Max
5.1
Unit
V
8
10
3
150
60
5.5
1.5
0.1
mV
mV
mA
mA
62
1.7
dB
V
1.8
40
0.42
µV
mV/°C
84
ppm/°C
40
28.3
62
°C/W
2. 0.01µF minimum load capacitance is recommended to limit high frequency noise.
Electrical Characteristics (cont.)
AS78L12 (@ VIN = 19V, IOUT = 40mA, CIN = 0.33µF, COUT = 0.1µF, TJ = +25°C, Bold typeface applies over -40°C ≤ TJ ≤ +125°C, unless
otherwise specified.)
Symbol
VOUT
VRLINE
VRLOAD
IQ
△IQ
14.5V ≤ VIN ≤ 27V, 1mA ≤ IOUT ≤
100mA, PD ≤ 0.75W
Line Regulation
Load Regulation
Quiescent Current
14.5V ≤ VIN ≤ 27V
1mA ≤ IOUT ≤ 100mA
Quiescent Current Change
Ripple Rejection
VDROP
Dropout Voltage
θJC
Conditions
Output Voltage
PSRR
NO
△VOUT/△T
(△VOUT/VOUT
△T
Note:
Parameter
Output Noise Voltage
Output Voltage
Coefficient
Thermal Resistance
Temperature
Min
11.5
Typ
12.0
11.4
12.6
20
20
3
16V ≤ VIN ≤ 27V
1mA ≤ IOUT ≤ 40mA
f = 120Hz, 15V ≤ VIN ≤ 25V
IOUT = 40mA
IOUT = 100mA
10Hz ≤ f ≤ 100kHz (Note 2)
IOUT = 5mA
TO-92
SOT-89
SOIC-8
37
Max
12.5
250
100
6
1.5
0.1
Unit
V
mV
mV
mA
mA
42
1.7
1.8
80
1
dB
µV
mV/°C
84
ppm/°C
40
28.3
62
°C/W
V
2. 0.01µF minimum load capacitance is recommended to limit high frequency noise.
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Electrical Characteristics (cont.)
AS78L15 (@ VIN = 23V, IOUT = 40mA, CIN = 0.33µF, COUT = 0.1µF, TJ = +25°C, Bold typeface applies over -40°C ≤ TJ ≤ +125°C, unless
otherwise specified.)
Symbol
VOUT
VRLINE
VRLOAD
IQ
△IQ
PSRR
VDROP
NO
△VOUT/△T
(△VOUT/VOUT
△T
θJC
Note:
Parameter
Conditions
Output Voltage
17.5V ≤ VIN ≤ 30V, 1mA ≤ IOUT ≤
100mA, PD ≤ 0.75W
Line Regulation
Load Regulation
Quiescent Current
17.5V ≤ VIN ≤ 30V
1mA ≤ IOUT ≤ 100mA
Quiescent Current Change
Ripple Rejection
Dropout Voltage
Output Noise Voltage
Output Voltage
Coefficient
Thermal Resistance
Temperature
20V ≤ VIN ≤ 30V
1mA ≤ IOUT ≤ 40mA
f = 120Hz, 18.5V ≤ VIN ≤ 28.5V
IOUT = 40mA
IOUT = 100mA
10Hz ≤ f ≤ 100kHz (Note 2)
Min
14.4
Typ
15.0
14.25
15.75
25
25
3
34
39
TO-92
1.7
1.8
90
1.25
84
40
SOT-89
SOIC-8
28.3
62
IOUT = 5mA
Max
15.6
250
150
6
1.5
0.1
Unit
V
mV
mV
mA
mA
dB
V
µV
mV/°C
ppm/°C
°C/W
2. 0.01µF minimum load capacitance is recommended to limit high frequency noise.
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Performance Characteristics
Output Voltage vs. Input Voltage
Output Voltage vs. Case Temperature
5.07
30
5.06
o
TC=25 C
IOUT=40mA
5.05
Output Voltage (V)
Output Voltage (V)
25
20
AS78L05
AS78L12
15
10
5.04
5.03
5.02
AS78L05
VIN=10V
IOUT=1mA
5.01
5
5.00
4.99
0
0
5
10
15
20
25
30
-25
35
0
25
50
75
100
125
o
Case Temperature ( C)
Input Voltage (V)
Over Temperature Protection
Dropout Voltage vs. Case Temperature
2.0
26
24
1.8
22
VIN=10V/19V/33V
IOUT=1mA
1.6
Dropout Voltage (V)
Output Voltage (V)
20
18
AS78L05
AS78L12
16
14
12
10
8
6
1.4
1mA
40mA
70mA
100mA
1.2
1.0
0.8
0.6
AS78L05
VOUT=VOUT(nominal)x99%
0.4
4
0.2
2
0.0
0
0
25
50
75
100
125
150
175
-25
200
0
50
75
100
125
Case Temperature ( C)
Case Temperature ( C)
Output Voltage vs. Output Current
Quiescent Current vs. Case Temperature
3.5
25
3.4
VIN=10V/19V/33V
o
TC=25 C
3.3
Quiescent Current (mA)
20
Output Voltage (V)
25
o
o
AS78L05
AS78L12
15
10
3.2
3.1
3.0
2.9
2.8
2.7
5
AS78L05
VIN=10V
IOUT=1mA
2.6
2.5
0
0
50
100
150
200
250
-25
0
25
50
75
100
125
o
Case Temperature ( C)
Output Current (mA)
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Performance Characteristics (cont.)
Power Dissipation vs. Case Temperature
PSRR vs. Frequency
2.8
60
50
2.0
PSRR (dB)
Power Dissipation (W)
2.4
1.6
1.2
40
30
20
0.8
AS78L05
10
0.4
0
10
0.0
-25
0
25
50
75
100
125
o
Line Transient
(Conditions: IOUT=40mA, CIN=0.33µF, COUT=0.1µF)
1000
10000
100000
1000000
Load Transient
(Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF)
20
15
AS78L05
10
5
DVOUT (100mV/Div)
200
IO UT (100mA/Div)
V IN (5V/Div)
100
Frequency (Hz)
Case Temperature ( C)
DVOUT (20mV/Div)
AS78L05
VIN=10V
IOUT=40mA
CIN=0.33F
COUT=0.1F
20
0
-20
-40
100
0
-100
100
0
-100
-200
Time (40µs/Div)
Time (20µs/Div)
AS78LXX
Document number: DS36515 Rev. 4 - 2
AS78L05
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AS78LXX
Ordering Information
AS78LXX
E1: Lead Free
G1: Green
Circuit Type
TR: Tape & Reel or Ammo
Blank: Bulk or Tube
Output Voltage
05: 5V
12: 12V
15: 15V
Package
Z: TO-92
R: SOT-89
M: SOIC-8
Blank: Normal Precision
C: High Precision
Package
Temperature
Range
TO-92
-40 to 125C
SOT-89
-40 to 125C
SOIC-8
-40 to 125C
Part Number
Lead Free
Green
AS78L05Z-E1
AS78L05Z-G1
Marking ID
Lead Free
Green
AS78L05Z-E1
AS78L05Z-G1
Packing Type
Bulk
AS78L05ZTR-E1
AS78L05CZTR-E1
AS78L12Z-E1
AS78L12ZTR-E1
AS78L15Z-E1
AS78L15ZTR-E1
AS78L05ZTR-G1
AS78L05CZTR-G1
AS78L12Z-G1
AS78L12ZTR-G1
AS78L15Z-G1
AS78L15ZTR-G1
AS78L05Z-E1
AS78L05Z-E1
AS78L12Z-E1
AS78L12Z-E1
AS78L15Z-E1
AS78L15Z-E1
AS78L05Z-G1
AS78L05Z-G1
AS78L12Z-G1
AS78L12Z-G1
AS78L15Z-G1
AS78L15Z-G1
Ammo
Ammo
Bulk
Ammo
Bulk
Ammo
AS78L05RTR-E1
AS78L12RTR-E1
AS78L15RTR-E1
AS78L05M-E1
AS78L05MTR-E1
AS78L12M-E1
AS78L12MTR-E1
AS78L05RTR-G1
AS78L12RTR-G1
AS78L15RTR-G1
AS78L05M-G1
AS78L05MTR-G1
AS78L12M-G1
AS78L12MTR-G1
E78E
E78F
E78G
AS78L05M-E1
AS78L05M-E1
AS78L12M-E1
AS78L12M-E1
G78E
G78F
G78G
AS78L05M-G1
AS78L05M-G1
AS78L12M-G1
AS78L12M-G1
Tape & Reel
Tape & Reel
Tape & Reel
Tube
Tape & Reel
Tube
Tape & Reel
AS78L15M-E1
AS78L15MTR-E1
AS78L15M-G1
AS78L15MTR-G1
AS78L15M-E1
AS78L15M-E1
AS78L15M-G1
AS78L15M-G1
Tube
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with "G1" suffix are
available in green packages.
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Package Outline Dimensions (All dimensions in mm(inch).)
TO-92 (Bulk Packing)
1.000(0. 039)
3.430(0. 135)
MIN
3.700(0.146)
3.300(0.130)
1.400(0. 055)
0.320(0. 013)
0.510(0. 020)
0. 000(0. 000)
0. 380(0. 015)
Φ1. 600(0. 063)
MAX
4.700(0.185)
1.270(0. 050)
TYP
AS78LXX
Document number: DS36515 Rev. 4 - 2
15.500(0.610)
0.360(0. 014)
0.760(0. 030)
12.500(0.492)
4.300(0.169)
4.400(0. 173)
4.800(0. 189)
2.420(0. 095)
2.660(0.105)
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AS78LXX
Package Outline Dimensions (cont.) (All dimensions in mm(inch).)
TO-92 (Ammo Packing)
1. 100(0. 043)
1.270(0. 050)
Typ
3. 430(0.135)
MIN
3.800(0.150)
2.500(0. 098)
4.000 (0.157 )
0.000(0.000)
0.380(0.015)
Φ1. 600(0. 063)
MAX
14.500(0.571)
0. 320(0. 013)
0. 510(0. 020)
12.500(0.492)
3.300(0.130)
1. 400(0. 055)
4.700(0.185)
4.300(0.169)
4.400(0. 173)
4.800 (0.189 )
13.000(0. 512)
15.000 (0.591 )
0.380(0.015)
0.550(0.022 )
2.540(0.100)
Typ
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Package Outline Dimensions (cont.) (All dimensions in mm(inch).)
SOT-89
1.400(0.055)
1.600(0.063)
4.400(0.173)
4.600(0.181)
Option 1
2.300(0.091)
2.600(0.102)
3.950(0.156)
4.250(0.167)
2.060(0.081)REF
3
0.900(0.035)
1.200(0.047)
0.350(0.014)
0.450(0.018)
0.320(0.013)
0.540(0.021)
0.480(0.019)
0.620(0.024)
0.320(0.013)
0.540(0.021)
3.000(0.118)
TYP
10
3
R0.150(0.006)
10
Option 1
Option 2
1.550(0.061)REF
1.030(0.041)REF
R 0.200(0.008)
0.320(0.013)REF
45
AS78LXX
Document number: DS36515 Rev. 4 - 2
2.630(0.104)
2.930(0.115)
1.620(0.064)REF
2.210(0.087)REF
1.500(0.059)
1.620(0.064)
1.800(0.071)
1.830(0.072)
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AS78LXX
Package Outline Dimensions (cont.) (All dimensions in mm(inch).)
SOIC-8
4.700(0.185)
5.100(0. 201)
7°
0.320(0. 013)
TYP
1.350(0. 053)
1.750(0. 069)
8°
8°
7°
0.675(0. 027)
0.725(0. 029)
D
5.800(0. 228)
6.200(0. 244)
1.270(0. 050)
TYP
D
20:1
0.300(0. 012)
R0.150(0.006)
0.100(0. 004)
1.000(0. 039)
TYP
3.800(0. 150)
Option 1
4.000(0. 157)
0.300(0. 012)
0.150(0. 006)
0.250(0. 010)
Option 1
0°
8°
1°
7°
0.510(0. 020)
0.900(0. 035)
TYP
Option 2
R0.150(0.006)
0.450(0. 017)
0.800(0. 031)
0.350(0. 014)
TYP
Note: Eject hole , oriented hole and mold mark is optional .
AS78LXX
Document number: DS36515 Rev. 4 - 2
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AS78LXX
Suggested Pad Layout
SOT-89
X1
Z
X2
Y1
Y
E
X
Dimensions
Value
Z
(mm)/(inch)
4.600/0.181
AS78LXX
Document number: DS36515 Rev. 4 - 2
X
(mm)/(inch)
0.550/0.022
X1
(mm)/(inch)
1.850/0.073
X2
(mm)/(inch)
0.800/0.031
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Y
(mm)/(inch)
1.300/0.051
Y1
(mm)/(inch)
1.475/0.058
E
(mm)/(inch)
1.500/0.059
November 2021
© Diodes Incorporated
AS78LXX
Suggested Pad Layout (cont.)
SOIC-8
Grid
placement
courtyard
G
Z
Y
E
Dimensions
Value
AS78LXX
Document number: DS36515 Rev. 4 - 2
Z
(mm)/(inch)
6.900/0.272
G
(mm)/(inch)
3.900/0.154
X
X
(mm)/(inch)
0.650/0.026
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Y
(mm)/(inch)
1.500/0.059
E
(mm)/(inch)
1.270/0.050
November 2021
© Diodes Incorporated
AS78LXX
IMPORTANT NOTICE
1.
DIODES INCORPORATED AND ITS SUBSIDIARIES (“DIODES”) MAKE NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY
INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
2.
The Information contained herein is for informational purpose only and is provided only to illustrate the operation of Diodes products
described herein and application examples. Diodes does not assume any liability arising out of the application or use of this document or any
product described herein. This document is intended for skilled and technically trained engineering customers and users who design with Diodes
products. Diodes products may be used to facilitate safety-related applications; however, in all instances customers and users are responsible for
(a) selecting the appropriate Diodes products for their applications, (b) evaluating the suitability of the Diodes products for their intended
applications, (c) ensuring their applications, which incorporate Diodes products, comply the applicable legal and regulatory requirements as well
as safety and functional-safety related standards, and (d) ensuring they design with appropriate safeguards (including testing, validation, quality
control techniques, redundancy, malfunction prevention, and appropriate treatment for aging degradation) to minimize the risks associated with
their applications.
3.
Diodes assumes no liability for any application-related information, support, assistance or feedback that may be provided by Diodes
from time to time. Any customer or user of this document or products described herein will assume all risks and liabilities associated with such
use, and will hold Diodes and all companies whose products are represented herein or on Diodes’ websites, harmless against all damages and
liabilities.
4.
Products described herein may be covered by one or more United States, international or foreign patents and pending patent
applications. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks
and trademark applications. Diodes does not convey any license under any of its intellectual property rights or the rights of any third parties
(including third parties whose products and services may be described in this document or on Diodes’ website) under this document.
5.
Diodes
products
are
provided
subject
to
Diodes’
Standard
Terms
and
Conditions
of
Sale
(https://www.diodes.com/about/company/terms-and-conditions/terms-and-conditions-of-sales/) or other applicable terms. This document does not
alter or expand the applicable warranties provided by Diodes. Diodes does not warrant or accept any liability whatsoever in respect of any
products purchased through unauthorized sales channel.
6.
Diodes products and technology may not be used for or incorporated into any products or systems whose manufacture, use or sale is
prohibited under any applicable laws and regulations. Should customers or users use Diodes products in contravention of any applicable laws or
regulations, or for any unintended or unauthorized application, customers and users will (a) be solely responsible for any damages, losses or
penalties arising in connection therewith or as a result thereof, and (b) indemnify and hold Diodes and its representatives and agents harmless
against any and all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim relating to any noncompliance with
the applicable laws and regulations, as well as any unintended or unauthorized application.
7.
While efforts have been made to ensure the information contained in this document is accurate, complete and current, it may contain
technical inaccuracies, omissions and typographical errors. Diodes does not warrant that information contained in this document is error-free and
Diodes is under no obligation to update or otherwise correct this information. Notwithstanding the foregoing, Diodes reserves the right to make
modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described
herein. This document is written in English but may be translated into multiple languages for reference. Only the English version of this document
is the final and determinative format released by Diodes.
8.
Any unauthorized copying, modification, distribution, transmission, display or other use of this document (or any portion hereof) is
prohibited. Diodes assumes no responsibility for any losses incurred by the customers or users or any third parties arising from any such
unauthorized use.
Copyright © 2021 Diodes Incorporated
www.diodes.com
AS78LXX
Document number: DS36515 Rev. 4 - 2
15 of 15
www.diodes.com
November 2021
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