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TPS53321 Datasheet 5-A Step-Down Regulator

Manufacturer: Texas Instruments

General Description

The TPS53321 device provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components in 200 mm2 of PCB area.

Due to the low ON-resistance and TI's Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA.

It requires only two 22µF ceramic output capacitors for a power dense 5-A solution.

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS53321 SLUSAF3A – DECEMBER 2010 – REVISED NOVEMBER 2016 TPS53321 5-A Step-Down Regulator With Integrated Switcher.

Key Features

  • 1 96% Maximum Efficiency.
  • Continuous 5-A Output Current.
  • Supports All MLCC Output Capacitor.
  • SmoothPWM™ Auto-Skip Eco-Mode™ for Light- Load Efficiency.
  • Optimized Efficiency at Light and Heavy Loads.
  • Voltage Mode Control.
  • Supports Master-Slave Interleaved Operation.
  • Synchronization up to ±20% of Nominal Frequency.
  • Conversion Voltage Range Between 2.9 V and 6V.
  • Soft-Stop Output Discharge During Disable.