TPS54232

ACTIVE

3.5V to 28V Input, 2A, 1MHz Step-Down Converter with Eco-mode

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Product details

Parameters

Vin (Min) (V) 3.5 Vin (Max) (V) 28 Vout (Min) (V) 0.8 Vout (Max) (V) 25 Iout (Max) (A) 2 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 1000 Switching frequency (Max) (kHz) 1000 Features Enable, Light Load Efficiency, UVLO Adjustable, Soft Start Adjustable Control mode Current Mode Duty cycle (Max) (%) 90 Type Converter Operating temperature range (C) -40 to 150 Rating Catalog open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Buck converters (integrated switch)

Features

  • 3.5-V to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80-mΩ High-Side MOSFET Supports
    up to 2-A Continuous Output Current
  • High Efficiency at Light Loads with a Pulse
    Skipping Eco-Mode
  • Fixed 1-MHz Switching Frequency
  • Typical 1-µA Shutdown Quiescent Current
  • Adjustable Slow-Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency Fold
    Back and Thermal Shutdown Protection
  • Available in 8-Pin SOIC Package
  • Supported by WEBENCH Software Tool
    (http://www.ti.com/lsds/ti/analog/webench/overview.page)
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Description

The TPS54232 is a 28-V, nonsynchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-Mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back, and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54232 is available in an 8-pin SOIC package.

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Same functionality and pinout but is not an equivalent to the compared device:
TPS54332 ACTIVE 3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode This product offers higher current (3 A).

Technical documentation

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Type Title Date
* Datasheet TPS54232 2-A, 28-V, 1-MHz, Step-Down DC-DC Converter With Eco-Mode™ datasheet (Rev. D) Nov. 04, 2014
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Understanding Eco-mode(TM) Operation Dec. 05, 2016
Application notes Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) Oct. 26, 2012
User guides TPS54232EVM-415 2A, SWIFT Regulator Evaluation Module Jan. 09, 2009

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
This evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54232 regulator. The switching frequency is internally set at a nominal 1000 kHz. The high-side MOSFET is incorporated inside the TPS54232 package along with the (...)

Design tools & simulation

CALCULATION TOOLS Download
Inverting Power Supply Calculator for SWIFT DC/DC with Integrated FETs
SWIFTINV-CALC The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
CALCULATION TOOLS Download
Positive and Negative Output Voltage Split Rail Calculator for SWIFT DC/DC Converters
SWIFTPOSNEG-CALC The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.

This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)

Reference designs

REFERENCE DESIGNS Download
Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives
TIDA-00171 This evaluation kit and reference design implements the AMC130x reinforced isolated delta-sigma modulators along with integrated Sinc filters in the C2000™ TMS320F28377D Delfino™ microcontroller. The design provides an ability to evaluate the  performance of these measurements: three motor (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Buck Converter with 5V Input to -5V@500mA Output
PMP4748 — The buck converter here is used to work in buck-boost configuration and convert a 4.75V to 5.25V to a -5V @ 500mA.
Design files

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

Ordering & quality

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