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HTSSOP (PWP)

LM43600PWPR

Active
Texas Instruments

3.5V TO 36V, 500MA SYNCHRONOUS STEP-DOWN VOLTAGE CONVERTER

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HTSSOP (PWP)

LM43600PWPR

Active
Texas Instruments

3.5V TO 36V, 500MA SYNCHRONOUS STEP-DOWN VOLTAGE CONVERTER

Find alt

Description

General part information

LM43600 Series

The LM43600 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 0.5 A of load current from an input voltage ranging from 3.5 V to 36 V (42 V transient). The LM43600 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 1-A, 2-A and 3-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency modulation at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCCundervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM43600 device is available in the 16-pin HTSSOP (PWP) leaded package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. Pin-to-pin compatible with LM46000, LM46001, LM46002, LM43601, LM43602, and LM43603 devices.

The LM43600 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 0.5 A of load current from an input voltage ranging from 3.5 V to 36 V (42 V transient). The LM43600 provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. An extended family is available in 1-A, 2-A and 3-A load current options in pin-to-pin compatible packages. Peak current mode control is employed to achieve simple control loop compensation and cycle-by-cycle current limiting. Optional features such as programmable switching frequency, synchronization, power-good flag, precision enable, internal soft start, extendable soft start, and tracking provide a flexible and easy-to-use platform for a wide range of applications. Discontinuous conduction and automatic frequency modulation at light loads improve light load efficiency. The family requires few external components and pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VCCundervoltage lockout, cycle-by-cycle current limit, and output short-circuit protection. The LM43600 device is available in the 16-pin HTSSOP (PWP) leaded package (6.6 mm × 5.1 mm × 1.2 mm) with 0.65-mm lead pitch. Pin-to-pin compatible with LM46000, LM46001, LM46002, LM43601, LM43602, and LM43603 devices.

Technical Specifications

Parameters and characteristics for this part

SpecificationLM43600PWPR
Current - Output500 mA
Frequency - Switching (Max)2.2 MHz
Frequency - Switching (Min)200 kHz
FunctionStep-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature (Max)125 °C
Operating Temperature (Min)-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package Length0.173 in
Package Name16-PowerTSSOP, 16-HTSSOP
Package Width4.4 mm
Synchronous RectifierYes
TopologyBuck
Voltage - Input (Max)36 V
Voltage - Input (Min)3.5 V
Voltage - Output (Max)28 V
Voltage - Output (Min/Fixed)1 V

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Compensation Made SIMPLE With LM4360x, LM4600x
AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)
SIMPLE SWITCHER Synchronous Regulator Series (Rev. B)
LM43600 3.5-V to 36-V, 0.5-A Synchronous Step-Down Voltage Converter datasheet (Rev. B)
AN-1197 Selecting Inductors for Buck Converters (Rev. B)
LM43600 EVM User's Guide
AN-1149 Layout Guidelines for Switching Power Supplies (Rev. C)
Understanding and Applying Current-Mode Control Theory
AN-1997 Error Amplifier Limitations in High-Performance Regulator Applications (Rev. A)
AN-1566 Techniques for Thermal Analysis of Switching Power Supply Designs (Rev. A)
AN-643 EMI/RFI Board Design (Rev. B)
Input and Output Capacitor Selection
Inverting made simple by unleashing the buck
Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A)
Semiconductor and IC Package Thermal Metrics (Rev. D)
AN-1229 SIMPLE SWITCHER PCB Layout Guidelines (Rev. C)
AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)
Inverting Applications Made SIMPLE With LM4600x and LM4360x (Rev. B)
Buck Converter Quick Reference Guide (Rev. B)
Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B)
AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)
AN-2162 Simple Success With Conducted EMI From DC-DC Converters (Rev. C)
Differences Between LM4600x/LM4360x A and Non-A OPNs
Low EMI Layout Made SIMPLE With LM43600/1/2/3 and LM46000/1/2 (Rev. A)
Thermal Design Made Simple With LM43603 and LM46002
AN-1533 Overvoltage Protection Circuit for Automotive Load Dump (Rev. B)