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TPS53318

ACTIVE

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

A newer version of this product is available

open-in-new Compare alternates
Similar functionality to the compared device
NEW 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

Vin (min) (V) 1.5 Vin (max) (V) 22 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iout (max) (A) 8 Iq (typ) (mA) 0.32 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 Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP Duty cycle (max) (%) 90 Type Converter
Vin (min) (V) 1.5 Vin (max) (V) 22 Vout (min) (V) 0.6 Vout (max) (V) 5.5 Iout (max) (A) 8 Iq (typ) (mA) 0.32 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 Operating temperature range (°C) -40 to 125 Rating Catalog Regulated outputs (#) 1 Control mode D-CAP Duty cycle (max) (%) 90 Type Converter
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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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 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 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
Simulation model

TPS53318 TINA-TI Transient Spice Model

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

TPS53318 Unencrypted PSpice Transient Model Package (Rev. A)

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

SLURAZ7 TPS533xx Excel Calculator Tool

Supported products & hardware

Supported products & hardware

Products
Buck converters (integrated switch)
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
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 (...)
Reference designs

PMP8824 — 7 to 12Vin 1.2Vout 8A Step-down Conv for Powering Rails in Altera Arria V FPGA Reference Design

The PMP8824 uses the TPS53318 DCAP Mode 8A step-down converter to power the VCCR_GXB, VCCL_GXB, VCCT_GXB rails in Altera Arria® V FPGAs enabling tight load regulation, low total component count, high efficiency, high power density, and excellent thermal performance. The complete design fits in (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-01243 — USB Type-C™ and Power Delivery Minidock With Video and Charging Support Reference Design

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
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.
Test report: PDF
Schematic: PDF
Package Pins Download
LSON-CLIP (DQP) 22 View options

Ordering & quality

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Information included:
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