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AC/DC & DC/DC converters (integrated FET)

TPS54232

ACTIVE

3.5-V to 28-V input, 2-A step-down converter with eco-mode

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Data sheet

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TPS62932 ACTIVE 3.8-V to 30-V input, 2-A, 200-kHz to 2.2-MHz, low-IQ synchronous buck converter in SOT-583 package Wider range of Vin and Fsw, with smaller size.

TPS54232

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Iq (typ) (µA) 85 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 150 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3.5 Vin (max) (V) 28 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Features Enable, Light Load Efficiency, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Iq (typ) (µA) 85 Duty cycle (max) (%) 90
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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)
  • 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)

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.

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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TPS54231 ACTIVE 3.5 to 28V Input, 2A, 570kHz Step-Down Converter with Eco-mode™ Equivalent part with lower Fsw.
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Technical documentation

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Type Title Date
* Data sheet TPS54232 2-A, 28-V, 1-MHz, Step-Down DC-DC Converter With Eco-Mode™ datasheet (Rev. D) PDF | HTML 04 Nov 2014
User guide TPS54232 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 26 Oct 2021
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Understanding Eco-mode(TM) Operation 05 Dec 2016
Application note Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 26 Oct 2012

Design & development

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

Evaluation board

TPS54232EVM-415 — TPS54232, 2A Step-Down Converter Evaluation Module

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 (...)
User guide: PDF | HTML
Not available on TI.com
Calculation tool

SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator

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 (...)

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS54040 — 3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode TPS54060 — 3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode TPS54060-EP — TPS54060-EP- 0.5-A, 60V Step Down DC/DC Converter with Eco-Mode TPS54140 — 3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode TPS54160 — 3.5V to 60V Input, 1.5A Step-Down Converter with Eco-Mode TPS54231 — 3.5 to 28V Input, 2A, 570kHz Step-Down Converter with Eco-mode™ TPS54232 — 3.5-V to 28-V input, 2-A step-down converter with eco-mode TPS54233 — 3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode TPS54260 — 3.5V to 60V Input, 2.5A Step-Down Converter with Eco-Mode TPS54331 — 3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode TPS54332 — 3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode TPS54340 — 42 V Input, 3.5 A, Step-Down DC/DC Converter with Eco-mode™ TPS54360 — 4.5V to 60 V Input, 3.5 A Step-Down Converter with Eco-mode TPS54360B — 60-V input, 3.5-A, step-down DC/DC converter with Eco-Mode™ TPS54540 — 42 V, 5 A, Step-Down DC-DC Converter with Eco-Mode TPS54560 — 4.5V to 60 V input, 5 A step-down converter with Eco-Mode TPS54560B — 4.5-V to 60-V input, 5-A, step-down DC-DC converter with Eco-mode™ TPS54561 — 4.5V to 60V Input 5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™
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Calculation tool

SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download

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 (...)

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS54040 — 3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode TPS54060 — 3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode TPS54060-EP — TPS54060-EP- 0.5-A, 60V Step Down DC/DC Converter with Eco-Mode TPS54140 — 3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode TPS54160 — 3.5V to 60V Input, 1.5A Step-Down Converter with Eco-Mode TPS54231 — 3.5 to 28V Input, 2A, 570kHz Step-Down Converter with Eco-mode™ TPS54232 — 3.5-V to 28-V input, 2-A step-down converter with eco-mode TPS54233 — 3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode TPS54240 — 3.5V to 42V Input, 2.5A Step-Down Converter with Eco-Mode TPS54260 — 3.5V to 60V Input, 2.5A Step-Down Converter with Eco-Mode TPS54331 — 3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode TPS54332 — 3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode
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Reference designs

TIDA-00171 — Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives

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 (...)
User guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
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Ordering & quality

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