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ACT4455 Datasheet 36v/5a Step Down DC/dc Converter

Manufacturer: Active-Semo

Overview: ACT4455 Rev 2, 21-Nov-12 36V/5A Step Down DC/DC Converter.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

ACT4455 is a wide input voltage step-down DC/DC converter with high-side MOSFET integrated.

It provides up to 5A continuous output current at 200kHz switching frequency.

The converter can be configured as single output or dual outputs with independent over current protection.

Key Features

  • 7.5V to 36V Input Voltage.
  • 40V Input Voltage Surge.
  • Up to 5A Output Current.
  • Up to 12V Output Voltage.
  • Dual Outputs with Independent Over Current Protection.
  • 7.5% Accurate Over Current Protection (OCP).
  • Integrated 45mΩ High Side Power FET.
  • 90% Efficiency at Heavy Load.
  • Internal 3ms Soft Startup.
  • Low Standby Input Current.
  • Sleeping Mode at OCP, OTP and SCP.
  • Zero Input and Output Currents a.

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