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AP3421 Datasheet Dual 1.0a Synchronous Step-down Converters

Manufacturer: BCD Semiconductor

Overview: Preliminary Datasheet 1.3MHz, Dual 1.0A Synchronous Step-down Converters AP3421/A/B.

Datasheet Details

Part number AP3421
Manufacturer BCD Semiconductor
File Size 504.93 KB
Description Dual 1.0A Synchronous Step-down Converters
Datasheet AP3421-BCDSemiconductor.pdf

General Description

The AP3421/A/B is a fully integrated dual output voltage regulator.

The two converters are current mode and internally pensated.

The converters include integrated control and synchronous rectifier switches.

Key Features

  • VO1=1.8 to 3.6V at 1A.
  • VO2=1.0 to 3.6V at 1A.
  • Switching Frequency: 1.3MHz.
  • 180° Phase Shifted Switching.
  • No Rectifier Diode Required.
  • Optional External Clocking (2× Clock Required).
  • Light Load Pulse Skipping.
  • Enable/Sleep State.
  • Internal Soft-start.
  • Open-drain Power On Reset Monitors Input and.
  • Outputs.
  • Discharge-Before-Turn-On (For AP3421/A).
  • Pre-bias Function (For AP3421B).

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