TPS53318

ACTIVE

1.5-V to 22-V, 8-A synchronous buck converter with eco-mode

A newer version of this product is available

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Similar functionality to the compared device
TPS56837 ACTIVE 4.5-V to 28-V input, 8-A synchronous buck converter Wider input and output voltage ranges, higher current, better efficiency and light-load efficiency in a smaller package

Product details

Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 22 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification Control mode D-CAP Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 320 Duty cycle (max) (%) 90 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 22 Vin (min) (V) 1.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Adjustable current limit, Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification Control mode D-CAP Switching frequency (min) (kHz) 250 Switching frequency (max) (kHz) 1000 Operating temperature range (°C) -40 to 125 Iq (typ) (μA) 320 Duty cycle (max) (%) 90 Type Converter
LSON-CLIP (DQP) 22 30 mm2 6 x 5
  • 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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Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TPS53319 ACTIVE 1.5-V to 22-V, 14-A synchronous buck converter with eco-mode Upgraded over-current protection and adjustable-soft start.

Technical documentation

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Type Title Date
* Data sheet TPS5331x High-Efficiency, 8A or 14A, Synchronous Buck Converter With Eco-mode Control datasheet (Rev. G) PDF | HTML 10 Nov 2025
Application note Measuring the Bode Plot of D-CAP?, D-CAP2?, and D-CAP3? DC/DC Converters (Rev. A) PDF | HTML 21 Apr 2023
User guide TPS53318 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 03 Dec 2021
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
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
Analog Design Journal 2Q 2016 Analog Applications Journal Issue 26 Apr 2016
Analog Design Journal How to select input capacitors for a buck converter 26 Apr 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 PDF | HTML 05 May 2015
Application note TPS53319 DCAP Mode with Ripple Injection Modeling Design Consideration 23 Oct 2014
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.
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS53318 TINA-TI Transient Reference Design

SLUM382.TSC (186 KB) - TINA-TI Reference Design
Download
Simulation model

TPS53318 TINA-TI Transient Spice Model

SLUM381.ZIP (57 KB) - TINA-TI Spice Model
Download
Simulation model

TPS53318 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM314A.ZIP (75 KB) - PSpice Model
Download
Calculation tool

SLURAZ7 — TPS533xx Excel Calculator Tool

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS53318 — 1.5-V to 22-V, 8-A synchronous buck converter with eco-mode TPS53319 — 1.5-V to 22-V, 14-A synchronous buck converter with eco-mode TPS53353 — High-efficiency 1.5-V to 15-V, 20-A synchronous SWIFT? buck converter with eco-mode TPS53355 — High-efficiency 1.5-V to 15-V, 30-A synchronous SWIFT? buck converter with eco-mode
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The USB Type-C® and power delivery (PD) minidock reference design provides a reference for a USB Type-C dock including audio, USB data, power and video.  This reference design has a small 2-inch by 4-inch form factor and supports both source and sink power capabilities over the (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00882 — USB Type-C HDD With USB Power Delivery Reference Design

This reference design uses Texas Instrument's SuperSpeed USB 3.0 to SATA bridge, USB Type-CTM and USB PD controller with integrated power switch and High-Speed USB mux, and SuperSpeed USB 3.1 mux to demonstrate the subsystems required to implement a Type-C external hard disk drive capable of (...)
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
LSON-CLIP (DQP) 22 Ultra Librarian

Ordering & quality

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  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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