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TPS54232

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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) (A) 0.000085
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) (A) 0.000085
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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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

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