DESCRIPTION
It is the ideal choice for externally referenced or tracking buck convertors such as those for DDR memory applications. The controller SC4510 FEATURES
u Synchronous buck operation with current sink or u u u u u u u u u 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 is also designed for point of use DC-DC convertors with 2.5-16V power sources with a Vcc of 4.5V or higher. Soft start, current limit, programmable oscillator and external compensation functions are provided to ensure high degree of integration and low external component count.
Semtech Corporation
