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TPS40075

ACTIVE

4.5-V to 28-V, synchronous buck controller with voltage feed forward

Product details

Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.7 Vout (max) (V) 23 Iout (max) (A) 20 Iq (typ) (mA) 1.5 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification Operating temperature range (°C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog Control mode Voltage mode Type Controller
Vin (min) (V) 4.5 Vin (max) (V) 28 Vout (min) (V) 0.7 Vout (max) (V) 23 Iout (max) (A) 20 Iq (typ) (mA) 1.5 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification Operating temperature range (°C) -40 to 85 Regulated outputs (#) 1 Number of phases 1 Rating Catalog Control mode Voltage mode Type Controller
VQFN (RHL) 20 15.75 mm² 4.5 x 3.5
  • Operation Over 4.5-V to 28-V Input Range
  • Fixed-Frequency Voltage-Mode Controller
  • Integrated Unity Gain Amplifier for Remote Output Sensing
  • Predictive Gate Drive™ Generation II for Improved Efficiency
  • <1% Internal 700-mV Reference
  • Input Voltage Feed Forward Control
  • Prebiased Output Compatible
  • Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
  • Switching Frequency Programmable to 1 MHz
  • 20-Pin QFN Package
  • Thermal Shutdown Protection
  • Software Design Tool and EVM Available
  • APPLICATIONS
    • Power Modules
    • Networking/Telecom
    • Industrial
    • Servers

Predictive Gate Drive is a trademark of Texas Instruments.

  • Operation Over 4.5-V to 28-V Input Range
  • Fixed-Frequency Voltage-Mode Controller
  • Integrated Unity Gain Amplifier for Remote Output Sensing
  • Predictive Gate Drive™ Generation II for Improved Efficiency
  • <1% Internal 700-mV Reference
  • Input Voltage Feed Forward Control
  • Prebiased Output Compatible
  • Internal Gate Drive Outputs for High-Side and Synchronous N-Channel MOSFETs
  • Switching Frequency Programmable to 1 MHz
  • 20-Pin QFN Package
  • Thermal Shutdown Protection
  • Software Design Tool and EVM Available
  • APPLICATIONS
    • Power Modules
    • Networking/Telecom
    • Industrial
    • Servers

Predictive Gate Drive is a trademark of Texas Instruments.

The TPS40075 is a mid voltage, wide input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user programmable functions, including; soft start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection.

The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to minimize conduction in the body diode of the low side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side FET to turn on until the voltage commanded by the closed loop soft start is greater than the pre-bias voltage. Voltage feed forward provides good response to input transients and provides a constant PWM gain over a wide input voltage operating range to ease compensation requirements. Programmable short circuit protection provides fault current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 20-pin QFN package gives good thermal performance and a compact footprint.

The TPS40075 is a mid voltage, wide input (4.5-V to 28-V), synchronous, step-down controller, offering design flexibility for a variety of user programmable functions, including; soft start, UVLO, operating frequency, voltage feed-forward and high-side FET sensed short circuit protection.

The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to minimize conduction in the body diode of the low side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side FET to turn on until the voltage commanded by the closed loop soft start is greater than the pre-bias voltage. Voltage feed forward provides good response to input transients and provides a constant PWM gain over a wide input voltage operating range to ease compensation requirements. Programmable short circuit protection provides fault current limiting and hiccup recovery to minimize power dissipation with a shorted output. The 20-pin QFN package gives good thermal performance and a compact footprint.

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Technical documentation

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Type Title Date
* Data sheet Synchronous Buck Controller datasheet (Rev. A) 11 Sep 2007
User guide TPS40075 Buck Controller Evaluation Module User's Guide (Rev. A) PDF | HTML 21 Jan 2022
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

Design & development

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Evaluation board

TPS40075EVM-001 — 15A, 12V Input, 1.5V Output Evaluation Module

The TPS40075EVM-001 evaluation module (EVM) is a synchronous buck converter providing a fixed1.5 V output at up to 15 A from a 12 V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the TPS40075 (...)

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

SLUC263 Type III Compensation Calculation Tool

Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
TPS53311 2.9V to 6V Input, 3A Synchronous Step-Down Converter with Eco-Mode and Smooth PWM TPS53313 4.5-V to 16-V, 6-A synchronous buck converter with optimized light load efficiency TPS53316 High-Efficiency, 5-A Step-Down Regulator with Integrated Switcher TPS56121 4.5-V to 14-V, 15-A synchronous SWIFT™ buck converter TPS56221 4.5-V to 14-V, 25-A synchronous SWIFT™ buck converter
Buck controllers (external switch)
TPS40007 2.25V-5.5V, 300 kHz, Synchronous Buck Controller, Source/ Sink, Prebias Operation TPS40009 2.25V-5.5V, 600 kHz, Synchronous Buck Controller, Source/ Sink, Prebias Operation TPS40021 Enhanced Low Input (2.25V-5.5V) up to 1MHz Frequency, Sync. Buck Controller, source/sink TPS40040 2.25 to 5.5 V input, 300 kHz, synchronous buck controller with low pin count TPS40041 2.25 to 5.5 V input, 600 kHz, synchronous buck controller with low pin count TPS40055 Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source/sink TPS40057 Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source/sink with prebias TPS40075 4.5-V to 28-V, synchronous buck controller with voltage feed forward TPS40077 4.5-V to 28-V, synchronous buck controller with voltage feed forward in HTSSOP package TPS40101 4.5-V to 18-V, synchronous buck controller with advanced sequencing and output margining TPS40170 4.5 V to 60 V Wide-Input Synchronous PWM Buck Controller TPS40190 4.5-V to 15-V, 20-A synchronous buck controller TPS40192 4.5-V to 18-V, 20-A, 600-kHz synchronous buck controller with power good TPS40193 4.5-V to 18-V, 20-A, 300-kHz synchronous buck controller with power good TPS40195 4.5-V to 20-V, 20-A, synchronous buck controller with power good and synchronization TPS40200 Wide Input Non-Synchronous Buck DC/DC Controller TPS40303 3-V to 20-V, 25-A, 300-kHz synchronous buck controller with FSS TPS40304 3-V to 20-V, 25-A, 600-kHz synchronous buck controller with FSS TPS40305 3-V to 20-V, 25-A, 1.2-MHz synchronous buck controller with FSS TPS40322 Dual Output or Two-phase Synchronous Buck Controller TPS40400 3-V to 20-V, 30-A, synchronous buck controller with PMBus™, including Telemetry TPS40422 Dual Output or Multiphase Synchronous Buck Controller with PMBus TPS5130 4.5-V to 28-V, triple synchronous buck controller with LDO controller
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 (...)
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VQFN (RHL) 20 View options

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