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TPS53355

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1.5V to 15V Input (4.5V to 25V Bias), 30A Synch Step-Down SWIFT™ Converter w/ Eco-mode™

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1.5V to 15V Input (4.5V to 25V Bias), 30A Synch Step-Down SWIFT™ Converter w/ Eco-mode™

TPS53355

ACTIVE
Data sheet Order now

Product details

Parameters

Vin (Min) (V) 1.5 Vin (Max) (V) 15 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 30 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, Forced PWM, Soft Start Adjustable, Over Current Protection, UVLO Fixed Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

LSON-CLIP (DQP) 22 30 mm² 6 x 5 open-in-new Find other Buck converters (integrated switch)

Features

  • 96% Maximum efficiency
  • Conversion input voltage range: 1.5 V to 15 V
  • VDD input voltage range: 4.5 V to 25 V
  • Output voltage range: 0.6 V to 5.5 V
  • 5-V LDO output
  • Supports single rail input
  • Integrated power MOSFETs with 30 A of continuous output current
  • Auto-skip Eco-mode™ for light-load efficiency
  • < 10-µA Shutdown 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
  • Precharged 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 block technology
  • 22-Pin QFN package With PowerPAD™
  • For SWIFT™ power products documentation, see http://www.ti.com/swift
  • Green (RoHS compatible), is optional
  • Create a custom design using the TPS53355 with the WEBENCH® Power Designer

All trademarks are the property of their respective owners.

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Description

TPS53355 is a D-CAP™ mode, 30-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and space-conscious power systems.

This device features 5-mΩ/2-mΩ integrated MOSFETs, accurate 1% 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 15-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 15V, 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.

The device is available in 6-mm × 5-mm, 22-pin QFN package.

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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
LMZ31530 ACTIVE 3V to 14.5V, 30A Step-Down Power Module in 15x16x5.8mm QFN Package This product is a 30-A power module with integrated inductor to simplify design.

Technical documentation

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Type Title Date
* Datasheet TPS53355 1.5-V to 15-V Input (4.5-V to 25-V bias), 30-A Synch Step-down SWIFT™ Converter with Eco-mode datasheet (Rev. F) Jun. 11, 2019
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides SWIFT DC/DC Converters Selector Guide (Rev. G) Feb. 06, 2019
Application notes DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems Dec. 11, 2018
Application notes Minimizing Switching Ringing at TPS53355 and TPS53353 Family Devices (Rev. A) Nov. 14, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes 如何实现比基准更低的输出电压 Apr. 08, 2018
Application notes Analysis and Design of Input Filter for DC-DC Circuit Nov. 27, 2017
Selection guides Control-Mode Quick Reference Guide (Rev. A) Sep. 14, 2017
Application notes Calculating Output Capacitance to Meet Transient and Ripple Requirements May 02, 2017
Application notes Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev Jan. 25, 2017
Technical articles Don’t say goodbye to your power supply Mar. 07, 2016
Application notes SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC Feb. 22, 2016
Technical articles Power Tips: How to reduce D-CAP control output capacitance Jul. 21, 2015
Application notes Not All Jitter Is Created Equal (Rev. A) Jul. 04, 2015
Technical articles Power Tips: How to create an adjustable output power supply Jun. 24, 2015
Application notes TPS53319 DCAP Mode with Ripple Injection Modeling Design Consideration Oct. 23, 2014
User guides Using TPS53355EVM-743, High-Efficiency 30A, Synchronous Buck Converter Aug. 09, 2011

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS53355EVM-743 evaluation module (EVM) allows users to evaluate the TPS53355. The TPS53355 is a D-CAP™mode, 30-A synchronous buck converter with integrated MOSFETs. It provides a fixed 1.5-V output at up to 30 A from a 12-V input bus The TPS53355EVM-743 is designed to use a regulated 12-V bus (...)

Features
  • 30-Adc, steady-state output current
  • Supports prebias output voltage start-up
  • J5 for selectable switching frequency setting
  • J4 for selectable soft-start time
  • J2 for enable function
  • J6 for auto-skip and forced CCM selection
  • Convenient test points for probing critical waveforms
View details

Design tools & simulation

SIMULATION MODELS Download
SLUM388A.ZIP (38 KB) - PSpice Model
SIMULATION MODELS Download
SLUM451.TSC (424 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLUM452.ZIP (57 KB) - TINA-TI Spice Model

Reference designs

REFERENCE DESIGNS Download
Non-Isolated Synchronous Buck (1.8V@8A)
PMP7828 — 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.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Power Density 12Vin, 100W Synchronous DC/DC Step-Down Buck Converter with Inductor-On-Top
TIDA-00510 — The TPS53355 Inductor-On-Top step-down buck converter design enables high power density through reduction of X-Y PCB area by placing the output inductor on top of the IC and results in 92% minimum efficiency for 66W and 100W output power designs (3.3V and 5V output)  requiring only (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Power Density Buck Converter with Integrated FET DCAP Regulator Reference Design
PMP10449 — The PMP10449 offers a high power desnity solution, able to deliver up to 20A.  This, coupled with over 93% peak efficiency, makes this solution optimal for communications or enterprise switcing applications.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Power Density 12Vin, 12.6W Buck Converter with Integrated Inductor
TIDA-00471 — The TPS53355 Inductor-On-Top step-down buck converter design enables high power density through reduction of X-Y PCB area and results in >86% efficiency with only 1.8W of power loss and 6mV of output voltage ripple requiring only 5x100uF ceramic output caps.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Complete PMBus Power System for Enterprise Ethernet Switches Reference Design
PMP10896 — Complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, and auxiliary voltages found on high-performance Ethernet Switches.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Adaptive Voltage Scaling Power Supply for Communication and Enterprise Storage ASIC Core Rails
PMP10488 — This design is for implementing an ASIC Core AVS power supply using the the TPS53355 PowerStack Synchronous Buck SWIFT dc/dc converter and the LM10011 VID chip. The design accepts a 10V to 14V input and provides a 1V 20A output. The LM10011 is a precision, digitally programmable device, allowing for (...)
document-generic Schematic document-generic User guide

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