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TPS54531 Datasheet Step-Down Converter

Manufacturer: Texas Instruments

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General Description

The TPS54531 device is a 28-V, 5-A nonsynchronous buck converter that integrates a low Ren1 Ren2 EN VIN TPS54531 BOOT PH SS COMP CSS C1 C2 R3 VSENSE GND VIN CI CBOOT LO D1 CO VOUT RO1 RO2 Simplified Schematic RDS(on) high-side MOSFET.

To increase efficiency at light loads, a pulse skipping Eco-mode

Overview

TPS54531 SLVSBI5B – MAY 2013 – REVISED OCTOBER 2023 TPS54531 5-A, 28-V Input, SWIFT™ Step-Down Converter With Eco-mode.

Key Features

  • 3.5 to 28-V input voltage range.
  • Adjustable output voltage down to 0.8 V.
  • Integrated 80-mΩ high-side MOSFET supports up to 5-A continuous output current.
  • High efficiency at light loads with a pulse skipping Eco-mode.
  • Fixed 570-kHz switching frequency.
  • Typical 1-μA shutdown quiescent current.
  • Adjustable slow start limits inrush currents.
  • Programmable UVLO threshold.
  • Overvoltage transient protection.
  • Cycle-b.

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