TPS549D22

ACTIVE

1.5V to 16V Input, 40A SWIFT™ Synchronous Step-Down Converter with Diff. Remote Sense and PMBus™

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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 Iq (Typ) (mA) 2 Switching frequency (Min) (kHz) 315 Switching frequency (Max) (kHz) 1125 Features Adjustable Current Limit, Enable, Light Load Efficiency, Over Current Protection, I2C/PMBus, Power Good, Pre-Bias Start-Up, Synchronous Rectification, UVLO Adjustable, Voltage Margining, Adaptive/Dynamic Voltage Scaling, Differential Remote Sense, Forced PWM, 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

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

Features

  • 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
  • Adaptive On-Time Control with 8 PMBusTM Frequency: 315 kHz, 425 kHz, 550 kHz, 650 kHz, 825 kHz, 900 kHz, 1.025 MHz, 1.125 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
  • Prebias Start-up Support
  • Eco-mode™ and FCCM Selectable
  • Full Suite of Fault Protection and PGOOD
  • Standard VOUT_COMMAND and VOUT_MARGIN (HIGH and LOW)
  • Pin-Strapping and On-the-Fly Programming
  • Fault Reporting and Warning
  • NVM Backup for Selected Commands
  • 1-MHz PMBus with PEC and SMB_ALRT#
  • Create a Custom Design Using the TPS549D22 With the WEBENCH® Power Designer

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Description

The TPS549D22 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 TPS549D22 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 TPS549D22EVM-784 evaluation module (EVM) uses the TPS549D22. The TPS549D22 is a D-CAP3™ mode, 40A synchronous buck converter with integrated MOSFETs supporting PMBUS. It 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 150°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
SLUM547.ZIP (208 KB) - PSpice Model

CAD/CAE symbols

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

Ordering & quality

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