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TPS54239

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4.5V to 23V Input, 2A Synchronous Step-Down Converter with D-CAP2 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.

TPS54239

ACTIVE
Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 23 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 600 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 4.5 Vin (max) (V) 23 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 600 Features Enable, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 600 Duty cycle (max) (%) 90
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 23 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 140 mΩ (High Side) and 70 mύ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 600-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit
  • D-CAP2 Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide VIN Input Voltage Range: 4.5 V to 23 V
  • Output Voltage Range: 0.76 V to 7.0 V
  • Highly Efficient Integrated FETs Optimized
    for Lower Duty Cycle Applications
    – 140 mΩ (High Side) and 70 mύ (Low Side)
  • High Efficiency, less than 10 µA at shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Pre-Biased Soft Start
  • 600-kHz Switching Frequency (fSW)
  • Cycle By Cycle Over Current Limit

The TPS54239 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54239 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54239 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The TPS54239 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 23-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54239 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

The TPS54239 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54239 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54239 uses the D-CAP2™ mode control that provides a fast transient response with no external compensation components. The TPS54239 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 23-V VIN input. The output voltage can be programmed between 0.76 V and 7 V. The device also features an adjustable soft start time. The TPS54239 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.
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Technical documentation

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Type Title Date
* Data sheet 4.5 V to 23 V Input, 2-A Synchronous Step-Down SWIFTTM Converter datasheet 07 Jan 2013
User guide TPS54239 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 26 Oct 2021

Design & development

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

Evaluation board

TPS54239EVM-056 — TPS54239 Synchronous Step-Down DC/DC Converter Evaluation Module

The Texas Instruments TPS54239EVM-056 evaluation module helps designers evaluate the performance of the TPS54239 4.5V to 23V input, 2-A synchronous step-down DC/DC converter.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS54239 TINA-TI Transient Reference Design

SLVM848.TSC (188 KB) - TINA-TI Reference Design
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Simulation model

TPS54239 TINA-TI Transient Spice Model

SLVM849.ZIP (49 KB) - TINA-TI Spice Model
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Simulation model

TPS54239 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM844A.ZIP (280 KB) - PSpice Model
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HSOIC (DDA) 8 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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