PTH04070WAST

PTH04070W www.ti.com SLTS227B – SEPTEMBER 2004 – REVISED OCTOBER 2007 3-A, 3.3/5-V INPUT ADJUSTABLE SWITCHING REGULATOR • • FEATURES 1 • • • • • • • • • • Up to 3-A Output Current at 85°C 3.3-V / 5-V Input Voltage Wide-Output Voltage Adjust (0.9 V to 3.6 V) 160 W/in3 Power Density Efficiencies Up To 94% On/Off Inhibit Undervoltage Lockout (UVLO) Output Overcurrent Protection (Nonlatching, Auto-Reset) Overtemperature Protection Ambient Temp. Range: –40°C to 85°C Surface Mount Package Safety Agency Approvals: UL/IEC/CSA-C22.2 60950-1 APPLICATIONS • Telecommunications, Instumentation, and General-Purpose Circuits DESCRIPTION The PTH04070W is a highly integrated, low-cost switching regulator module that delivers up to 3 A of output current. Occupying less PCB area than a standard TO-220 linear regulator IC, the PTH04070W provides output current at a much higher efficiency and with much less power dissipation, thereby eliminating the need for a heat sink. Their small size (0.5 × 0.4 in), high efficiency, and low cost makes these modules attractive for a variety of applications. The input voltage range of the PTH04070W is from 3 V to 5.5 V, allowing operation from either a 3.3-V or 5-V input bus. Using state-of-the-art switched-mode power-conversion technology, the PTH04070W can step down to voltages as low as 0.9 V from a 5-V input bus, with typically less than 1 W of power dissipation. The output voltage can be adjusted to any voltage over the range, 0.9 V to 3.6 V, using a single external resistor. Operating features include an undervoltage lockout (UVLO), on/off inhibit, output overcurrent protection, and overtemperature protection. Target applications include telecommunications, test and measurement applications, and high-end consumer products. The modules are available in both through-hole and surface-mount package options, including tape and reel. STANDARD APPLICATION Inhibit 5 4 RSET 0.05 W#, 1% (Required) VI VO PTH04070W (Top View) 1 3 2 GND C1* 47 mF Ceramic (Required) C2* 47 mF Ceramic (Required) C3* 47 mF Electroytic (Recommended) GND #See The Specification Table for Value *See The Capacitor Application Information 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2004–2007, Texas Instruments Incorporated PTH04070W www.ti.com SLTS227B – SEPTEMBER 2004 – REVISED OCTOBER 2007 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION For the most current package and ordering information, see the Package Option Addendum at the end of this datasheet, or see the TI website at www.ti.com. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range unless otherwise noted (1) PTH04070 TA Operating free-air temperature Over VI range Twave Wave solder temperature Surface temperature of module body or pins (5 seconds maximum) Suffix AH & AD Treflow Solder reflow temperature Surface temperature of module body or pins Suffix AS 235 (2) Suffix AZ 260 (2) Tstg (1) (2) (3) UNIT -40 to 85 260 °C -55 to 125 (3) Storage temperature Stresses beyond 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-rated conditions for extended periods may affect device reliability. During reflow of surface mount package version do not elevate peak temperature of the module, pins or internal components above the stated maximum. The shipping tray or tape and reel cannot be used to bake parts at temperatures higher than 65°C. RECOMMENDED OPERATING CONDITIONS VI Input voltage TA Operating free-air temperature MIN MAX 3 5.5 UNIT V –40 85 °C PACKAGE SPECIFICATIONS PTH04070WXX Weight Flammability Mechanical shock Mechanical vibration (1) 2 1.5 grams Meets UL 94 V-O Per Mil-STD-883D, Method 2002.3, 1 msec, 1/2 sine, mounted 500 G Mil-STD-883D, Method 2007.2, 20-2000 Hz 20 G (1) (1) Qualification limit. Submit Documentation Feedback Copyright © 2004–2007, Texas Instruments Incorporated Product Folder Link(s): PTH04070W PTH04070W www.ti.com SLTS227B – SEPTEMBER 2004 – REVISED OCTOBER 2007 ELECTRICAL CHARACTERISTICS at 25C free-air temperature, VI = 5 V, VO = 3.3 V, IO = IO(Max), C1 = 47 μF, C2 = 47 μF (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IO Output current TA = 85°C, natural convection airflow 0 3 VI Input voltage range Over IO range 3 5.5 VO(tol) Set-point voltage tolerance TA = 25°C Temperature variation -40 ≤ TA ≤ +85°C ±0.5 %VO Line regulation Over VI range ±1 mV Load regulation Over IO range ±5 Total output voltage variation Includes set-point, line, load, –40 ≤ TA ≤ +85°C VO(adj) Output voltage adjust range ±2 (1) A V %VO mV ±3 (1) VI ≥ 4.5 V 0.9 3.6 VI < 4.5 V 0.9 VI – 1.1 (2) %VO V TA = 25°C, IO = 2 A (2) RSET = 475 Ω, VO = 3.3 V RSET = 2.32 kΩ, VO = 2.5 V V η Efficiency IO(trip) 92% (2) 90% RSET = 4.87 kΩ, VO = 2 V 88% RSET = 6.65 kΩ, VO = 1.8 V 87% RSET = 11.5 kΩ, VO = 1.5 V 85% RSET = 26.1 kΩ, VO = 1.2 V 82% RSET = 84.5 kΩ, VO = 1 V 80% Output voltage ripple 20 MHz bandwith Overcurrent threshold Reset, followed by autorecovery 10 mVPP 7 A C3 = 47 μF, 1 A/μs load step from 50% to 100% IOmax Transient response UVLO Undervoltage lockout Recovery time 70 μs VO over/undershoot 100 mV VI = increasing VI = decreasing Input high voltage (VIH) Inhibit control (pin 5) Input low voltage (VIL) 2.95 2.7 VI – 0.5 Input low current (IIL) Input standby current Pin 5 connected to GND FS Switching frequency Over VI and IO ranges External input capacitance Ceramic type (C1) 47 (4) Ceramic type (C2) 47 (5) External output capacitance Nonceramic type (C3) Equivalent series resistance (nonceramic) MTBF (1) (2) (3) (4) (5) (6) (7) Calculated reliability Per Bellcore TR-332, 50% stress, TA = 40°C, ground benign Open –0.2 II(stby) V (3) 0.6 V –10 μA 1 mA 700 kHz μF 200 47 4 3 2.8 (5) 560 (6) μF (7) mΩ 48 106 Hrs The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a tolerance of 1% with with 100 ppm/°C or better temperature stability. The minimum input voltage is 3 V or (VO + 1.1) V, whichever is greater. A 5-V input bus is recommended for output voltages higher than 2 V. This control pin has an internal pullup to the input voltage VI. If it is left open circuit, the module operates when input power is applied. A small low-leakage ( 412 7.3L×4.3W ×4.1H 1 1 ≤5 ≤5 TPSD476M010R0100 TPSB476M010R0500 Kemet T520 (SMD) AO-CAP 10 6.3 68 47 0.060 0.028 >1200 >1100 7.3L×5.7W ×4.0H 1 1 ≤5 ≤3 T520V686M010ASE060 A700V476M006AT Vishay/Sprague 594D/595D (SMD) 10 10 68 68 0.100 0.240 >1000 680 7.3L×6.0W ×4.1H 1 1 ≤5 ≤5 594D686X0010C2T 595D686X0010C2T 94SL 16 47 0.070 1550 8×5 1 ≤5 94SL476X0016EBP TDK Ceramic X5R Murata Ceramic X5R Kemet 6.3 6.3 6.3 22 22 22 0.002 0.002 0.002 >1400 >1000 >1000 1210 case 3225 mm ≥ 2 (3) ≥ 2 (3) ≥ 2 (3) ≤3 ≤3 ≤3 C3225X5R0J226KT/MT GRM32ER61J223M C1210C226K9PAC TDK Ceramic X5R Murata Ceramic X5R Kemet 6.3 6.3 6.3 47 47 47 0.002 0.002 0.002 >1400 >1000 >1000 1210 case 3225 mm ≥1 ≥1 ≥1 ≤3 ≤3 ≤3 C3225X5R0J476KT/MT GRM32ER60J476M/6.3 C1210C476K9PAC CAPACITOR VENDOR/ COMPONENT SERIES (1) (2) (3) 10 PHYSICAL SIZE (mm) INPUT BUS (1) OUTPUT BUS VENDOR NUMBER EEFWA1A121P (2) EEVFC1E470P (2) A ceramic capacitor is required on both the input and the output. An electrolytic capacitor can be added to the output for improved transient response. An optional through-hole capacitor available. A total capacitance of 44 μF is an acceptable replacement for a single 47-μF capacitor. Submit Documentation Feedback Copyright © 2004–2007, Texas Instruments Incorporated Product Folder Link(s): PTH04070W PTH04070W www.ti.com SLTS227B – SEPTEMBER 2004 – REVISED OCTOBER 2007 Power-Up Characteristics When configured per the standard application, the PTH04070W power module produces a regulated output voltage following the application of a valid input source voltage. During power up, internal soft-start circuitry slows the rate that the output voltage rises, thereby limiting the amount of in-rush current that can be drawn from the input source. The soft-start circuitry introduces a short time delay (typically 10 ms) into the power-up characteristic. This is from the point that a valid input source is recognized. Figure 10 shows the power-up waveforms for a PTH04070W, operating from a 3-V input and with the output voltage adjusted to 1.8 V. The waveforms were measured with a 2-A resistive load. VI (1 V/div) VO (1 V/div) II (1 A/div) t − 10 ms/div Figure 10. Power-Up Waveforms Current Limit Protection The PTH04070W modules protect against load faults with a continuous current limit characteristic. Under a load fault condition, the output current cannot exceed the current limit value. Attempting to draw current that exceeds the current limit value causes the output voltage to be progressively reduced. Current is continuously supplied to the fault until it is removed. Upon removal of the fault, the output voltage will promptly recover. Thermal Shutdown Thermal shutdown protects the module internal circuitry against excessively high temperatures. A rise in temperature may be the result of a drop in airflow, a high ambient temperature, or a sustained current limit condition. If the junction temperature of the internal components exceeds 150°C, the module shuts down. This reduces the output voltage to zero. The module will start up automatically, by initiating a soft-start power up when the sensed temperature decreases 10°C below the thermal shutdown trip point. Submit Documentation Feedback Copyright © 2004–2007, Texas Instruments Incorporated Product Folder Link(s): PTH04070W 11 PTH04070W www.ti.com SLTS227B – SEPTEMBER 2004 – REVISED OCTOBER 2007 Output On/Off Inhibit For applications requiring output voltage on/off control, the PTH04070W power module incorporates an output on/off Inhibit control (pin 5). The inhibit feature can be used wherever there is a requirement for the output voltage from the regulator to be turned off. The power module functions normally when the Inhibit pin is left open-circuit, providing a regulated output whenever a valid source voltage is connected to Vin with respect to GND. Figure 11 shows the typical application of the inhibit function. Note the discrete transistor (Q1). The Inhibit control has its own internal pullup to VI potential. An open-collector or open-drain device is recommended to control this input. Turning Q1 on applies a low voltage to the Inhibit control pin and disables the output of the module. If Q1 is then turned off, the module will execute a soft-start power-up sequence. A regulated output voltage is produced within 20 msec. Figure 12 shows the typical rise in the output voltage, following the turn off of Q1. The turn off of Q1 corresponds to the fall in the waveform, Q1 Vgs. The waveforms were measured with a 2-A resistive load. VI = 5 V 1 PTH04070W VIN VO VO = 1.8 V 3 Inhibit GND VO Adj 5 4 2 C1 47-µF Ceramic Q1 BSS138 Inhibit C2 47-µF RSET 6.65 k 0.05 W 1% Ceramic L O A D GND GND Figure 11. On/Off Inhibit Control Circuit VO (1 V/div) II (1 A/div) Q1, Vgs (10 V/div) t − 5 ms/div Figure 12. Power Up Response From Inhibit Control 12 Submit Documentation Feedback Copyright © 2004–2007, Texas Instruments Incorporated Product Folder Link(s): PTH04070W PACKAGE OPTION ADDENDUM www.ti.com 1-Sep-2021 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) (3) Device Marking (4/5) (6) PTH04070WAD ACTIVE ThroughHole Module EVD 5 90 RoHS Exempt & Green SN N / A for Pkg Type -40 to 85 PTH04070WAH ACTIVE ThroughHole Module EVD 5 90 RoHS Exempt & Green SN N / A for Pkg Type -40 to 85 PTH04070WAS ACTIVE Surface Mount Module EVE 5 90 Non-RoHS & Green SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH04070WAST ACTIVE Surface Mount Module EVE 5 250 Non-RoHS & Green SNPB Level-1-235C-UNLIM/ Level-3-260C-168HRS -40 to 85 PTH04070WAZ ACTIVE Surface Mount Module EVE 5 90 RoHS (In Work) & Green SNAGCU Level-3-260C-168 HR -40 to 85 PTH04070WAZT ACTIVE Surface Mount Module EVE 5 250 RoHS (In Work) & Green SNAGCU Level-3-260C-168 HR -40 to 85 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of