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TPS53319

ACTIVE

1.5-V to 22-V, 14-A synchronous buck converter with eco-mode

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Data sheet

A newer version of this product is available

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Same functionality with different pin-out to the compared device.
TPS548B23 ACTIVE 4V to 16V, 20A synchronous step-down converter Higher efficiency in a smaller package
TPS548A29 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 4.5-V LDO Higher efficiency converter in a smaller lead-free package.

TPS53319

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 14 Vin (max) (V) 22 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed Control mode D-CAP Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00032 Duty cycle (max) (%) 90
Rating Catalog Topology Buck Iout (max) (A) 14 Vin (max) (V) 22 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Fixed Control mode D-CAP Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00032 Duty cycle (max) (%) 90
LSON-CLIP (DQP) 22 30 mm² (6 mm × 5 mm)
  • New products available: TPS548A28 and TPS548A29 16V, 15A, synchronous converters with remote sense
  • Conversion input voltage range: 1.5V to 22V
  • VDD input voltage range: 4.5V to 25V
  • 91% efficiency from 12V to 1.5V at 14A
  • Output voltage range: 0.6V to 5.5V
  • 5V LDO output
  • Supports single-rail input
  • Integrated power MOSFETs with 8A (TPS53318) or 14A (TPS53319) of continuous output current
  • Auto-skip Eco-mode for light-load efficiency
  • < 110µA shutdown current
  • D-CAP™ integrated circuit mode with fast transient response
  • Selectable switching frequency from 250kHz to 1MHz with external resistor
  • Selectable auto-skip or PWM-only operation
  • Built-in 1% 0.6V reference
  • 0.7ms, 1.4ms, 2.8ms and 5.6ms selectable internal voltage servo soft-start
  • Integrated boost switch
  • Pre-charged start-up capability
  • Adjustable overcurrent limit with thermal compensation
  • Overvoltage, undervoltage, UVLO and overtemperature protection
  • Supports all ceramic output capacitors
  • Open-drain power-good indication
  • Incorporates NexFET™ power MOSFET block technology
  • 22-pin QFN (DQP) package with PowerPAD™ integrated circuit package
  • New products available: TPS548A28 and TPS548A29 16V, 15A, synchronous converters with remote sense
  • Conversion input voltage range: 1.5V to 22V
  • VDD input voltage range: 4.5V to 25V
  • 91% efficiency from 12V to 1.5V at 14A
  • Output voltage range: 0.6V to 5.5V
  • 5V LDO output
  • Supports single-rail input
  • Integrated power MOSFETs with 8A (TPS53318) or 14A (TPS53319) of continuous output current
  • Auto-skip Eco-mode for light-load efficiency
  • < 110µA shutdown current
  • D-CAP™ integrated circuit mode with fast transient response
  • Selectable switching frequency from 250kHz to 1MHz with external resistor
  • Selectable auto-skip or PWM-only operation
  • Built-in 1% 0.6V reference
  • 0.7ms, 1.4ms, 2.8ms and 5.6ms selectable internal voltage servo soft-start
  • Integrated boost switch
  • Pre-charged start-up capability
  • Adjustable overcurrent limit with thermal compensation
  • Overvoltage, undervoltage, UVLO and overtemperature protection
  • Supports all ceramic output capacitors
  • Open-drain power-good indication
  • Incorporates NexFET™ power MOSFET block technology
  • 22-pin QFN (DQP) package with PowerPAD™ integrated circuit package

The TPS53318 and TPS53319 devices are D-CAP mode, 8A or 14A, synchronous switchers with integrated MOSFETs. These devices are designed for ease of use, low external component count, and space-conscious power systems.

These devices feature accurate 1%, 0.6V reference, and integrated boost switch. A sample of competitive features include: 1.5V to 22V wide conversion input voltage range, very low external component count, D-CAP integrated circuit mode control for super fast transient, auto-skip mode operation, internal soft-start control, selectable frequency, and no need for compensation.

The conversion input voltage ranges from 1.5V to 22V, the supply voltage range is from 4.5V to 25V, and the output voltage range is from 0.6V to 5.5V.

These devices are available in 5mm × 6mm, 22-pin QFN package and is specified from –40°C to 85°C.

The TPS548A28 and TPS548A29 are newer 15A devices designed for data center applications in a smaller, fully lead-free package.

The TPS53318 and TPS53319 devices are D-CAP mode, 8A or 14A, synchronous switchers with integrated MOSFETs. These devices are designed for ease of use, low external component count, and space-conscious power systems.

These devices feature accurate 1%, 0.6V reference, and integrated boost switch. A sample of competitive features include: 1.5V to 22V wide conversion input voltage range, very low external component count, D-CAP integrated circuit mode control for super fast transient, auto-skip mode operation, internal soft-start control, selectable frequency, and no need for compensation.

The conversion input voltage ranges from 1.5V to 22V, the supply voltage range is from 4.5V to 25V, and the output voltage range is from 0.6V to 5.5V.

These devices are available in 5mm × 6mm, 22-pin QFN package and is specified from –40°C to 85°C.

The TPS548A28 and TPS548A29 are newer 15A devices designed for data center applications in a smaller, fully lead-free package.
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TPS53318 ACTIVE 1.5-V to 22-V, 8-A synchronous buck converter with eco-mode Lower current equivalent part.

Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS5331x High-Efficiency, 8A or 14A, Synchronous Buck Converter With Eco-mode Control datasheet (Rev. G) PDF | HTML Nov 10, 2025
Application note Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) PDF | HTML Apr 21, 2023
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) Feb 6, 2019
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems Dec 11, 2018
Application note Minimizing Switch Ringing on TPS53319 and TPS53318 Family of Devices (Rev. A) Nov 13, 2018
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications Aug 24, 2018
Technical article Good pin practices with buck converters PDF | HTML May 31, 2017
Application note Calculating Output Capacitance to Meet Transient and Ripple Requirements May 2, 2017
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev Jan 25, 2017
Analog design Journal How to select input capacitors for a buck converter Apr 26, 2016
Technical article Don’t say goodbye to your power supply PDF | HTML Mar 7, 2016
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC Feb 22, 2016
Technical article Power Tips: How to measure Bode plots with DCAP regulators PDF | HTML May 5, 2015
Application note TPS53319 DCAP Mode with Ripple Injection Modeling Design Consideration Oct 23, 2014
Application note D-CAP(TM) Mode With All-Ceramic Output Capacitor Application Feb 3, 2011

Design & development

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

Evaluation board

TPS53319EVM-136 — TPS53319 Evaluation Module

The Texas Instruments TPS53319EVM-136 evaluation module (EVM) helps designers evaluate the performance of the TPS53319 synchronous switcher with integrated MOSFETs.
User guide: PDF | HTML
Supported products & hardware
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Simulation model

TPS53318 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM314A.ZIP (75 KB) - PSpice model
Supported products & hardware
Simulation model

TPS53319 TINA-TI Transient Reference Design

SLUM384.TSC (279 KB) - TINA-TI reference design
Supported products & hardware
Simulation model

TPS53319 TINA-TI Transient Spice Model

SLUM383.ZIP (57 KB) - TINA-TI Spice model
Supported products & hardware
Simulation model

TPS53319 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM313A.ZIP (75 KB) - PSpice model
Supported products & hardware
Calculation tool

SLURAZ7 — TPS533xx Excel Calculator Tool

Supported products & hardware
Reference design

PMP10896 — Complete PMBus Power System for Enterprise Ethernet Switches Reference Design

Complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, and auxiliary voltages found on high-performance Ethernet Switches.

Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
LSON-CLIP (DQP) 22 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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