Description

The SC4510 can be configured as a synchronous buck convertor capable of sourcing and sinking current from load without losing output regulation. The output can be set to track an internal reference or an external voltage. The actual reference used by the error amplifier is buffered and brought out as a reference. It is the ideal choice for externally referenced or tracking buck convertors such as those for DDR memory applications.

Features

◆ Synchronous buck operation with current sink or

source without loss of regulation

◆ Output can track internal or external reference

◆ Buffered reference output from external reference

◆ Combi-Sense mode lossless current sensing

◆ 2.5V to 16V operation with 4.75V minimum VCC

◆ Direct drive for high side N-channel MOSFETs with

diode and capacitor bootstrap

◆ Undervoltage lockout, Soft Start, Enable and Power

Good functions

◆ Fast transient response with external compensation

◆ Current mode control with transconductance error

amplifier

◆ Programmable oscillator frequency with external sync

Applications

◆ Externally referenced buck convertors

◆ DDR memory terminators

◆ Point of use power supplies