TPS54527

ACTIVE

4.5V to 18V Input, 5-A Synchronous Step-Down Converter

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 18 Vout (Min) (V) 0.76 Vout (Max) (V) 6 Iout (Max) (A) 5 Iq (Typ) (mA) 0.9 Switching frequency (Min) (kHz) 650 Switching frequency (Max) (kHz) 650 Features Enable, Synchronous Rectification, Soft Start Adjustable Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

HSOIC (DDA) 8 19 mm² 4.9 x 3.9 open-in-new Find other Buck converters (integrated switch)

Features

  • D-CAP2™ Mode Enables Fast Transient Response
  • Low Output Ripple and Allows Ceramic Output Capacitor
  • Wide Input Voltage Range: 4.5 V to 18 V
  • Output Voltage Range: 0.76 V to 6 V
  • Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications: 65 mΩ (High Side) and 36 mΩ (Low Side)
  • High Efficiency: Less Than 10 µA at Shutdown
  • High Initial Bandgap Reference Accuracy
  • Adjustable Soft Start
  • Prebiased Soft Start
  • 650-kHz Switching Frequency
  • Cycle-by-Cycle Overcurrent Limit
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Description

The TPS54527 is an adaptive on-time D-CAP2 mode synchronous buck converter. The TPS54527 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54527 uses the D-CAP2 mode control which provides a fast transient response with no external compensation components. The TPS54527 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from a 4.5-V to 18-V input. The output voltage can be programmed from 0.76 V to 6 V. The device also features an adjustable soft-start time. The TPS54527 is available in the 8-pin DDA package, and designed to operate from –40°C to 85°C.

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Similar but not functionally equivalent to the compared device:
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Technical documentation

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Type Title Date
* Datasheet TPS54527 4.5-V to 18-V Input, 5-A Synchronous Step-Down Converter datasheet (Rev. D) Aug. 25, 2016
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Application notes Optimize Output Filter on D-CAP2 for Stability Improvement Jun. 13, 2017
Application notes D-CAP2 Frequency Response Model, based on frequency domain analysis of Fixed On- Jan. 02, 2013
User guides TPS54527EVM-052, 5-A, SWIFT(TM) Regulator Evaluation Module Jul. 26, 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
$25.00
Description
The TPS54527EVM-052 evaluation module is a fully assembled and tested circuit for evaluating the TPS54527 synchronous step-down DC-DC converter. The TPS54527EVM-052 operates from a 4.5V to 18V supply and provides a 1.05V output at 5A. The main control loop for the TPS54527EVM-052 uses D-CAP2 mode (...)
Features
  • 4.5V to 18V Input Voltage Range
  • D-CAP2 Mode Enables Fast Transient Response
  • 1.05V Output Voltage
  • 5A Output Current

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