Product details

Vin (Min) (V) 8 Vin (Max) (V) 40 Vout (Min) (V) 0.7 Vout (Max) (V) 35 Iout (Max) (A) 20 Iq (Typ) (uA) 1500 Switching frequency (Min) (kHz) 100 Switching frequency (Max) (kHz) 1000 Features Enable, Frequency Synchronization, Pre-Bias Start-Up, Synchronous Rectification Operating temperature range (C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog
Vin (Min) (V) 8 Vin (Max) (V) 40 Vout (Min) (V) 0.7 Vout (Max) (V) 35 Iout (Max) (A) 20 Iq (Typ) (uA) 1500 Switching frequency (Min) (kHz) 100 Switching frequency (Max) (kHz) 1000 Features Enable, Frequency Synchronization, Pre-Bias Start-Up, Synchronous Rectification Operating temperature range (C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • Operating Input Voltage 8 V to 40 V
  • Input Voltage Feed-Forward Compensation
  • < 1% Internal 0.7-V Reference
  • Programmable Fixed-Frequency up to 1-MHz
    Voltage Mode Controller
  • Internal Gate-Drive Outputs for High-Side
    and Synchronous N-Channel MOSFETs
  • 16-Pin PowerPAD™ Package (θJC = 2°C/W)
  • Thermal Shutdown
  • Externally Synchronizable
  • Programmable High-Side Sense Short-Circuit
    Protection
  • Programmable Closed-Loop Soft-Start
  • TPS40054 Source Only
  • TPS40055 Source and Sink
  • TPS40057 Source and Sink With VO Prebias
  • Operating Input Voltage 8 V to 40 V
  • Input Voltage Feed-Forward Compensation
  • < 1% Internal 0.7-V Reference
  • Programmable Fixed-Frequency up to 1-MHz
    Voltage Mode Controller
  • Internal Gate-Drive Outputs for High-Side
    and Synchronous N-Channel MOSFETs
  • 16-Pin PowerPAD™ Package (θJC = 2°C/W)
  • Thermal Shutdown
  • Externally Synchronizable
  • Programmable High-Side Sense Short-Circuit
    Protection
  • Programmable Closed-Loop Soft-Start
  • TPS40054 Source Only
  • TPS40055 Source and Sink
  • TPS40057 Source and Sink With VO Prebias

The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.

The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft-start, UVLO, operating frequency, voltage feed-forward, high-side current limit, and loop compensation.

The TPS4005x uses voltage feed-forward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.

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Technical documentation

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Type Title Date
* Data sheet TPS4005x Wide-Input Synchronous Buck Controller datasheet (Rev. I) 31 Dec 2014
Application note Wide-Vin Battery-Charger Using SMBus MSP430 MCUs and bq Fuel Gauges (Rev. B) 12 Jul 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Selection guide Control-Mode Quick Reference Guide (Rev. A) 14 Sep 2017
User guide Using the TPS40055EVM-002 03 Mar 2004
User guide TPS40055 Based Design Converts 12V Bus to 1.8V at 15Amps 06 Feb 2004

Design & development

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

Evaluation board

TPS40055EVM-001 — Evaluation Module Converts 12V Bus to 1.8V at 15 Amps

In many modern electronic applications there is a growing demand for circuits to convert a12-V bus to digital voltages as low as, but not limited to 1.8 V. The current requirements can range from below 1 A to over 15 A. For high-efficiency and small circuit size the TPS40055 wide-input synchronous (...)

In stock
Limit: 5
Evaluation board

TPS40055EVM-002 — Wide Input Range Converter delivers 5V at 2 Amps

The TPS40055EVM−002 wide range input dc-to-dc converter uses the TPS40055 synchronous rectifier controller to step down a 10-V to 40-V input to 5 V. The output current is 3 A with an input of 10 V and should be linearly derated to 2 A at VIN = 40 V. The TPS40055 is used because it offers a variety (...)

In stock
Limit: 5
Simulation model

TPS40057 Unencrypted PSpice Transient Model Package (Rev. B)

SLUM285B.ZIP (97 KB) - PSpice Model
Simulation model

TPS40057 TINA-TI Transient Spice Model (Rev. A)

SLUM337A.ZIP (53 KB) - TINA-TI Spice Model
Simulation model

TPS40057 FAST STARTUP TINA-TI TRANSIENT REFERENCE DESIGN (Rev. A)

SLUM338A.TSC (633 KB) - TINA-TI Reference Design
Simulation model

TPS40057 STARTUP TINA-TI TRANSIENT REFERENCE DESIGN

SLUM699.TSC (637 KB) - TINA-TI Reference Design
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Calculation tool

Type III Compensation Calculation Tool (Rev. E)

SLUC263E.ZIP (185 KB)
Package Pins Download
HTSSOP (PWP) 16 View options

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