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TPS542A52

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4-V to 18-V input, voltage mode, 15-A synchronous SWIFT™ step-down converter with remote sense

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Product details

Parameters

Vin (Min) (V) 4 Vin (Max) (V) 18 Vout (Min) (V) 0.5 Vout (Max) (V) 5.5 Iout (Max) (A) 15 Iq (Typ) (uA) 1200 Switching frequency (Min) (kHz) 400 Switching frequency (Max) (kHz) 2200 Features Adjustable Current Limit, Differential Remote Sense, Enable, Forced PWM, Frequency Synchronization, Power Good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO Adjustable Operating temperature range (C) -40 to 150 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN-HR (RJM) 33 18 mm² 4.5 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • Integrated 9.1-mΩ and 2.6-mΩ MOSFETs support up to 15-A output current
  • 0.5-V to 5.5-V output voltage range
  • Fixed-frequency voltage control mode with selectable internal compensation
  • Seven selectable frequency settings from 400 kHz to 2.2 MHz
  • Synchronizes to an external clock
  • Fully differential remote sense
  • Six selectable over-current limits, four soft-start slew rates
  • Monotonic start-up into pre-biased outputs
  • EN pin allowing for adjustable input UVLO
  • Power good indicator
  • 17-µA typical shutdown quiescent current draw
  • Selectable FCCM or PFM for light load efficiency
  • –40 to +150°C operating junction temperature
  • 4-mm × 4.5-mm VQFN package
  • Create a custom design using the TPS542A52 with the WEBENCH Power Designer

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Description

The TPS542A52 is a high-efficiency synchronous buck converter with differential remote sense. This device features fixed-frequency, voltage-control mode with pinstrap selectable internal compensation for reduced system cost and complexity. The PWM can be synchronized to an external clock through the SYNC pin. Other key features include PFM for high light load efficiency, low shutdown quiescent current draw, adjustable UVLO through the EN pin and monotonic start up into pre-biased conditions. The TPS542A52 is a lead-free device. It is fully RoHS compliant without exemption.

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Technical documentation

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Type Title Date
* Data sheet TPS542A52 4-V to 18-V Input, 15-A, Synchronous Buck Converter With Differential Remote Sense datasheet (Rev. A) Oct. 21, 2020
User guide TPS542A52 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) May 07, 2021
Technical article Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
89
Description
The TPS542A52EVM-059 evaluation module (EVM) allows users to evaluate the TPS542A52. The TPS542A52 is a fixed frequency with non-compensation external synchronous buck converter with integrated MOSFETs. It provides a fixed 1-V output at up to 15 A from a 12-V input bus.
Features
  • Differential remote sensing
  • No external compensation network design
  • Selectable switching frequency from 400 kHz to 2.2 MHz
  • Synchronization to an external clock

Design tools & simulation

SIMULATION MODEL Download
SNVMC20.ZIP (1472 KB) - SIMPLIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
CALCULATION TOOL Download
SNVR490.ZIP (5421 KB)

CAD/CAE symbols

Package Pins Download
VQFN-HR (RJM) 33 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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