TPS548D22

ACTIVE

1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Differential Remote Sense

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Product details

Parameters

Vin (Min) (V) 1.5 Vin (Max) (V) 16 Vout (Min) (V) 0.6 Vout (Max) (V) 5.5 Iout (Max) (A) 40 Regulated outputs (#) 1 Switching frequency (Min) (kHz) 425 Switching frequency (Max) (kHz) 1050 Features Adjustable Current Limit, Enable, Light Load Efficiency, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable, Differential Remote Sense, Forced PWM, Over Current Protection, Soft Start Adjustable Control mode D-CAP3 Duty cycle (Max) (%) 80 Type Converter Operating temperature range (C) -40 to 125 Rating Catalog open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

LQFN-CLIP (RVF) 40 35 mm² 7 x 5 open-in-new Find other Buck converters (integrated switch)

Features

  • Conversion Input Voltage Range (PVIN): 1.5 V to 16 V
  • Input Bias Voltage (VDD) Range: 4.5 V to 22 V
  • Output Voltage Range: 0.6 V to 5.5 V
  • Integrated, 2.9-mΩ and 1.2-mΩ Power MOSFETs With 40-A Continuous Output Current
  • Voltage Reference 0.6 V to 1.2 V in 50-mV Steps Using VSEL Pin
  • ±0.5%, 0.9-VREF Tolerance Range: –40°C to +125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Capacitors and/or Small MLCCs Without External Compensation
  • Adaptive On-Time Control with 4 Selectable Frequency Settings: 425 kHz, 650 kHz, 875 kHz, and 1.05 MHz
  • Temperature Compensated and Programmable Current Limit with RILIM and OC Clamp
  • Choice of Hiccup or Latch-Off OVP or UVP
  • VDD UVLO External Adjustment by Precision EN Hysteresis
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD

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Description

The TPS548D22 device is a compact single buck converter with adaptive on-time, D-CAP3 mode control. It is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.

This device features full differential sense, TI integrated FETs with a high-side on-resistance of 2.9 mΩ and a low-side on-resistance of 1.2 mΩ. The device also features accurate 0.5%, 0.9-V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.

The TPS548D22 device is available in 7-mm × 5-mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).

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Technical documentation

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description
The TPS548D22EVM-784 evaluation module (EVM) uses the TPS548D22. The TPS548D22 is a D-CAP3™ mode, 40A synchronous Buck converter with integrated MOSFETs. The device provides a fixed 1.0V output at up to 40A from a 12V input bus.
Features
  • 40A DC Steady State Output Current
  • ±0.5% 0.9VREF Tolerance Over -40 to 125°C Junction Temperature
  • True Differential Remote Sense Amplifier
  • D-CAP3™ Control Loop to Support Large Bulk Cap and/or Small MLCCs Without External Compensation
  • Eco-Mode and FCCM Selectable
  • Temp Compensated and Programmable Current (...)

Design tools & simulation

SIMULATION MODELS Download
SLUM534.ZIP (183 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
PMBus Power System for Enterprise Ethernet Switches Reference Design
PMP11399 PMP11399 is a complete PMBus power system for 3 ASIC/FPGA cores, DDR3 core memory, VTT termination, and auxiliary voltages commonly found on high-performance Ethernet Switches. The hardware is accompanied by a GUI that allows the user to perform real-time configuration and monitoring of the power (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
LQFN-CLIP (RVF) 40 View options

Ordering & quality

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