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TPS548A29 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 4.5-V LDO This 15-A converter product offers greater efficiency in a in smaller, fully lead-free package.

Product details

Vin (Min) (V) 1.5 Vin (Max) (V) 22 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 14 Iq (Typ) (uA) 320 Switching frequency (Min) (kHz) 250 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Forced PWM, Soft Start Adjustable, Output Discharge, Over Current Protection, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 1.5 Vin (Max) (V) 22 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 14 Iq (Typ) (uA) 320 Switching frequency (Min) (kHz) 250 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, Forced PWM, Soft Start Adjustable, Output Discharge, Over Current Protection, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
LSON-CLIP (DQP) 22 30 mm² 6 x 5
  • Conversion input voltage range: 1.5 V to 22 V
  • VDD input voltage range: 4.5 V to 25 V
  • 91% efficiency from 12 V to 1.5 V at 14 A
  • Output voltage range: 0.6 V to 5.5 V
  • 5-V LDO output
  • Supports single-rail input
  • Integrated power MOSFETs with 8 A (TPS53318) or 14 A (TPS53319) of continuous output current
  • Auto-skip Eco-mode™ for light-load efficiency
  • < 110 µA shut down current
  • D-CAP™ mode with fast transient response
  • Selectable switching frequency from 250 kHz to 1 MHz with external resistor
  • Selectable auto-skip or PWM-only operation
  • Built-in 1% 0.6-V reference
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms selectable internal voltage servo soft-start
  • Integrated boost switch
  • Pre-charged start-up capability
  • Adjustable overcurrent limit with thermal compensation
  • Overvoltage, undervoltage, UVLO and over-temperature protection
  • Supports all ceramic output capacitors
  • Open-drain power good indication
  • Incorporates NexFET™ power block technology
  • 22-pin QFN (DQP) package with PowerPAD™
  • Conversion input voltage range: 1.5 V to 22 V
  • VDD input voltage range: 4.5 V to 25 V
  • 91% efficiency from 12 V to 1.5 V at 14 A
  • Output voltage range: 0.6 V to 5.5 V
  • 5-V LDO output
  • Supports single-rail input
  • Integrated power MOSFETs with 8 A (TPS53318) or 14 A (TPS53319) of continuous output current
  • Auto-skip Eco-mode™ for light-load efficiency
  • < 110 µA shut down current
  • D-CAP™ mode with fast transient response
  • Selectable switching frequency from 250 kHz to 1 MHz with external resistor
  • Selectable auto-skip or PWM-only operation
  • Built-in 1% 0.6-V reference
  • 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms selectable internal voltage servo soft-start
  • Integrated boost switch
  • Pre-charged start-up capability
  • Adjustable overcurrent limit with thermal compensation
  • Overvoltage, undervoltage, UVLO and over-temperature protection
  • Supports all ceramic output capacitors
  • Open-drain power good indication
  • Incorporates NexFET™ power block technology
  • 22-pin QFN (DQP) package with PowerPAD™

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

These devices feature accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 22-V wide conversion input voltage range, very low external component count, D-CAP™ 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 1.5 V to 22 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

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

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

These devices feature accurate 1%, 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 22-V wide conversion input voltage range, very low external component count, D-CAP™ 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 1.5 V to 22 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

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

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TPS53318 ACTIVE 1.5-V to 22-V, 8-A synchronous buck converter with eco-mode This product is a pin-to-pin version with 8-A output current.

Technical documentation

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Type Title Date
* Data sheet High-Efficiency 8-A or 14-A Synchronous Buck Converter with Eco-mode datasheet (Rev. F) 12 Oct 2020
Application note Measuring the Bode Plot for D-CAPx DC/DC Converters 25 May 2021
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Selection guide SWIFT DC/DC Converters Selector Guide (Rev. G) 06 Feb 2019
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 11 Dec 2018
Application note Minimizing Switch Ringing on TPS53319 and TPS53318 Family of Devices (Rev. A) 13 Nov 2018
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 24 Aug 2018
Technical article Good pin practices with buck converters 31 May 2017
Application note Calculating Output Capacitance to Meet Transient and Ripple Requirements 02 May 2017
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 25 Jan 2017
Application note How to select input capacitors for a buck converter 26 Apr 2016
Technical article Don’t say goodbye to your power supply 07 Mar 2016
Application note SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 22 Feb 2016
Technical article Power Tips: How to measure Bode plots with DCAP regulators 05 May 2015
Application note TPS53319 DCAP Mode with Ripple Injection Modeling Design Consideration 23 Oct 2014
User guide TPS53319EVM-136 User's Guide 02 May 2012
Application note D-CAP(TM) Mode With All-Ceramic Output Capacitor Application 03 Feb 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.
In stock
Limit: 5
Simulation model

TPS53319 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM313A.ZIP (75 KB) - PSpice Model
Simulation model

TPS53318 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM314A.ZIP (75 KB) - PSpice Model
Simulation model

TPS53319 TINA-TI Transient Spice Model

SLUM383.ZIP (57 KB) - TINA-TI Spice Model
Simulation model

TPS53319 TINA-TI Transient Reference Design

SLUM384.TSC (279 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

TPS533xx Excel Calculator Tool (Rev. A)

SLURAZ7A.ZIP (466 KB)
Reference designs

PMP7828 — Non-Isolated Synchronous Buck (1.8V@8A)

The PMP7828 uitlizes the TPS53355, TPS53318, and TPS53319 buck converters using TI NexFET PowerStack technology to power Xilinx Virtex7 FPGA core and I/O, DDR memory core, and 3.3V System Rail with  high efficiency and excellent thermal performance in a small area.
Reference designs

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.
Reference designs

PMP7340 — High Efficiency Step Down Converter for Storage SSD ASIC Core Rail Reference Design

The PMP7340 uses the TPS53319 synchronous-buck SWIFT converter with integrated power MOSFETs using PowerStack technology  to provide a  highly efficienct, power dense 12V input to 1V output 5.7A solution .   The TPS53319 is ideal for powering low-voltage, high-current  SSD (...)
Package Pins Download
LSON-CLIP (DQP) 22 View options

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