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TPS51315

ACTIVE

3-V to 14-V, 10-A synchronous buck converter with D-CAP control

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Data sheet

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TPS51397A ACTIVE 4.5-V to 24-V input, 10-A, synchronous step-down regulator Upgraded part with light-load efficiency in a smaller package.

TPS51315

ACTIVE
Data sheet Order now

Product details

Vin (min) (V) 3 Vin (max) (V) 14 Iout (max) (A) 10 Operating temperature range (°C) -40 to 125 Control mode D-CAP Rating Catalog Vout (min) (V) 0.75 Vout (max) (V) 5.5 Iq (typ) (A) 0.0004 Duty cycle (max) (%) 100
Vin (min) (V) 3 Vin (max) (V) 14 Iout (max) (A) 10 Operating temperature range (°C) -40 to 125 Control mode D-CAP Rating Catalog Vout (min) (V) 0.75 Vout (max) (V) 5.5 Iq (typ) (A) 0.0004 Duty cycle (max) (%) 100
VQFN (RGF) 40 35 mm² 7 x 5
  • Input Voltage Range: 3 V to 14 V
  • Output Voltage Range: 0.75 V to 5.5 V
  • Integrated Power MOSFETs with 10-A Continuous Current Output
  • < 5-µA Shutdown Current
  • D-CAP™ Mode with Fast Transient Response
  • Programmable Switching Frequency with External Resistor From 100 kHz to 1 MHz
  • Selectable Auto-Skip or PWM-Only Operation
  • < 1% Initial Reference Accuracy
  • Internal Soft-Start Control
  • Integrated Boost Diode
  • Power Good Signal
  • Adjustable Overcurrent Limit via External Resistor
  • OVP/UVP/UVLO Protection
  • Integrated Selectable Output Discharge
  • Prebias Output Voltage Start-Up with Disabled Output Discharge
  • Thermal Shutdown
  • 40-Pin QFN Package with PowerPAD™
  • Supports All Ceramic Output Capacitors
  • Input Voltage Range: 3 V to 14 V
  • Output Voltage Range: 0.75 V to 5.5 V
  • Integrated Power MOSFETs with 10-A Continuous Current Output
  • < 5-µA Shutdown Current
  • D-CAP™ Mode with Fast Transient Response
  • Programmable Switching Frequency with External Resistor From 100 kHz to 1 MHz
  • Selectable Auto-Skip or PWM-Only Operation
  • < 1% Initial Reference Accuracy
  • Internal Soft-Start Control
  • Integrated Boost Diode
  • Power Good Signal
  • Adjustable Overcurrent Limit via External Resistor
  • OVP/UVP/UVLO Protection
  • Integrated Selectable Output Discharge
  • Prebias Output Voltage Start-Up with Disabled Output Discharge
  • Thermal Shutdown
  • 40-Pin QFN Package with PowerPAD™
  • Supports All Ceramic Output Capacitors

The TPS51315 is a D-CAP™ Mode, 10-A, synchronous step-down converter with integrated MOSFETs. The combination of D-CAP™ mode and on-board MOSFETs provides fast transient response performance with ease of use, less external component count and small footprint. Externally adjustable switching frequency allows optimal design between component size and efficiency tradeoff. Ceramic output capacitors can be employed by adding a few extra components. The TPS51315 is available in the thermally-efficient 40-pin, 5 mm × 7 mm, QFN package and is specified from –40°C to 85°C ambient.

The TPS51315 is a D-CAP™ Mode, 10-A, synchronous step-down converter with integrated MOSFETs. The combination of D-CAP™ mode and on-board MOSFETs provides fast transient response performance with ease of use, less external component count and small footprint. Externally adjustable switching frequency allows optimal design between component size and efficiency tradeoff. Ceramic output capacitors can be employed by adding a few extra components. The TPS51315 is available in the thermally-efficient 40-pin, 5 mm × 7 mm, QFN package and is specified from –40°C to 85°C ambient.
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Technical documentation

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Type Title Date
* Data sheet 10-A STEP-DOWN SYNCHRONOUS SWITCHER WITH INTEGRATED MOSFETs datasheet (Rev. B) 09 Aug 2012
User guide TPS51315 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 04 Jan 2022
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

Design & development

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

Simulation model

TPS51315 TINA-TI Transient Reference Design

SLIM097.TSC (146 KB) - TINA-TI Reference Design
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Simulation model

TPS51315 TINA-TI Transient Spice Model

SLIM096.ZIP (40 KB) - TINA-TI Spice Model
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Simulation model

TPS51315 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM034B.ZIP (40 KB) - PSpice Model
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Package Pins Download
VQFN (RGF) 40 View options
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