TPS548A20

ACTIVE

1.5V to 20V (4.5V to 25V Bias) Input, 15A SWIFT™ Synchronous Step-Down Converter

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 20 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 15 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 250 Switching frequency (Max) (kHz) 1000 Features Adjustable Current Limit, Enable, Frequency Synchronization, Phase Interleaving, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable, Soft Start Adjustable Control mode D-CAP3 Duty cycle (Max) (%) 50 Type Converter Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

VQFN-CLIP (RVE) 28 16 mm² 4.5 x 3.5 open-in-new Find other Buck converters (integrated switch)

Features

  • Integrated SWIFT™ 9.9-mΩ and 4.3-mΩ MOSFETs Support 15-A Continuous IOUT
  • Wide Conversion Input Voltage Range: 1.5 V to 20 V (with Snubber)
  • Output Voltage Range from 0.6 V to 5.5 V
  • Supports All Ceramic Output Capacitors
  • Reference Voltage: 600 mV with ±0.5% Tolerance from –40°C to 85°C ambient temperature
  • D-CAP3™ Control Mode With Fast Load-Step Response
  • Hiccup Over Current Protection
  • Auto-Skipping Eco-Mode™ for High Light-Load Efficiency
  • FCCM for Tight Output Ripple and Voltage Tolerance Requirements
  • Pre-charged Startup Capability
  • Eight Selectable Frequency Settings from
    200 kHz to 1 MHz
  • 4.5 mm x 3.5 mm, 28-Pin, VQFN-CLIP Package
  • Supported at the WEBENCH™ Design Center

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Description

The TPS548A20 is a small-sized, synchronous buck converter with an adaptive on-time D-CAP3 control mode. The device offers ease-of-use and low bill-of-material count for space-conscious power systems.

This device features high-performance integrated MOSFETs, accurate 0.6-V reference, and an integrated boost switch. Competitive features include very-low external-component count, fast load-transient response, auto-skip mode operation, internal soft-start control, and no requirement for compensation.

A forced continuous conduction mode helps meet tight voltage regulation accuracy requirements for performance DSPs and FPGAs. The TPS548A20 is available in a 28-pin VQFN-CLIP package and is specified from –40°C to 125°C ambient temperature.

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Download

Technical documentation

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
$75.00
Description

The TPS548A20EVM-PWR737 evaluation module (EVM) uses the TPS548A20. The TPS548A20 is a D-CAP3™ mode, 15A synchronous buck converter with integrated MOSFETs. It provides a fixed 1.2V output at up to 15A from a 12V input bus.

Features
  • 15A DC Steady State Output Current
  • Support pre-bias output voltage start-up
  • Jumper for enable function
  • Jumper for auto-skip and forced CCM selection
  • Jumper for extra 5V input for further power-saving purpose

Software development

APPLICATION SOFTWARE & FRAMEWORKS Download
Digital Power Software
FUSION_DIGITAL_POWER_DESIGNER Fusion Digital Power™  is the Graphical User Interface (GUI) used to configure and monitor select Texas Instruments digital power controllers and sequencer/health monitors. The application uses the PMBus protocol to communicate with the device over serial bus by way of a TI USB adapter.
Features

Some of the tasks you can perform with the GUI include:

  • Turn on or off the power supply output, either through the hardware control line or the PMBus OPERATION command
  • Monitor real-time data. Items such as input voltage, output voltage, output current, temperature, and warnings/faults are continuously (...)

Design tools & simulation

SIMULATION MODELS Download
SLUM498.ZIP (117 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
VQFN-CLIP (RVE) 28 View options

Ordering & quality

Support & training

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