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TPS5432

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2.95V to 6V Input, 3A Synchronous Step-Down Converter

Data sheet
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2.95V to 6V Input, 3A Synchronous Step-Down Converter

TPS5432

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 2.95 Vin (Max) (V) 6 Vout (Min) (V) 0.808 Vout (Max) (V) 4.5 Iout (Max) (A) 3 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 700 Switching frequency (Max) (kHz) 700 Features Enable, Synchronous Rectification, Soft Start Adjustable Control mode Current Mode Duty cycle (Max) (%) 98 Type Converter Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 open-in-new Find other Buck converters (integrated switch)

Features

  • Two 70mΩ (typical) MOSFETs for 3A Continuous Output Current
  • Current Mode Control With External Compensation
  • 700kHz Switching Frequency
  • 360µA no Load Quiescent Operating Current (no switching)
  • 0.808V Internal Voltage Reference
  • ±2.0% Reference Accuracy at 25°C
  • ±3.0% Reference Accuracy Over Temperature Range –40°C~125°C
  • Stable Operation With Ceramic Output Capacitor
  • Adjustable Slow Start
  • Cycle by Cycle Current Limit, and Frequency Fold Back Protection
  • Thermally Enhanced 8-Pin SOIC (DDA) Package
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Description

The TPS5432 is a 6V, 3A, low Iq, current mode, synchronous monolithic buck converter with integrated MOSFETs. The TPS5432 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by 700kHz switching frequency. SOIC-8 package with exposed thermal pad provides both thermally enhanced solution and easy to use.

The TPS5432 provides accurate regulation for a variety of loads with an accurate 3.0% voltage reference over temperature.

Efficiency is maximized through the integrated 70mΩ MOSFETs and 360μA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

The output voltage startup ramp is controlled by the slow start pin. A ceramic capacitor at this pin can easily adjust the slow start time.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

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Technical documentation

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Type Title Date
* Datasheet 2.95V to 6V Input, 3A Output, 700kHz Synchronous Step Down Counter datasheet (Rev. A) Apr. 12, 2012
Selection guides Buck Converter Quick Reference Guide (Rev. A) Mar. 31, 2020
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides Power Management Solutions Set-Top Box and Digital TV (Rev. A) Apr. 18, 2012
User guides TPS5432EVM-116 3-A, SWIFT Regulator Evaluation Module Feb. 08, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$25.00
Description
The Texas Instruments TPS5432EVM-116 evaluation module (EVM) helps designers evaluate the performance of the TPS5432 2.95V to 6V Input, 3A Synchronous Step-Down Converter.
Features
  • 3V to 6V Input Voltage Range
  • 3A Ouptut Current
  • 1.8V Output
  • Current Mode Control
  • 700kHz Fixed Frequency
View details

Design tools & simulation

SIMULATION MODELS Download
SLVM560B.ZIP (29 KB) - PSpice Model
SIMULATION MODELS Download
SLVM909.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVM910.TSC (60 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVMB92A.ZIP (152 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Class 1 PoE - High Efficiency IP Camera Power Module Reference Design
TIDA-00079 — This IP Camera power module is a highly efficient power solution that enables high performance 1080p operation at the Class 1 PoE power level. This innovative power module, used in the low power DM385-AR331 IP Camera, relies on highly efficient switchers like the TPS5432 that are also very cost (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
IP Net Camera Power Module Reference Solution
SAT0027 — The SAT0027 IP Camera power module, is a highly efficient power solution that enables high performance 1080p IP Camera operation at the Class 1 PoE power level. This innovative power module relies on highly efficient switchers like the TPS5432 that are also very cost effective. The result is, TI (...)

CAD/CAE symbols

Package Pins Download
SO PowerPAD (DDA) 8 View options

Ordering & quality

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Training series

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Videos

Power Tips: Layout for a Buck Power Stage

This video shows a simplified schematic and PCB layout for a buck converter

Posted: 21-Jan-2016
Duration: 04:44

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