ML4873CR Datasheet PDF - Micro Linear Corporation

GENERAL DESCRIPTION
The ML4873 is a complete solution for DC to DC conversion and power management in multi-cell battery powered portable computers and instruments. Several advanced techniques are incorporated in the IC for the highest possible system efficiency and lowest battery drain.

FEATURES
■ Two synchronously rectified, 100kHz buck regulators for 5V and 3.3V outputs
■ Regulation to ±3% maximum: provides 2% PCMCIA switch matrix margin.
■ N-channel MOSFET drive for lowest cost
■ Burst mode for efficient operation at light load
■ µPower 5V standby linear regulator for power management logic
■ 12V low drop out linear regulator with high output (to 300mA) capability
■ Automatic charger disconnect switch comparator and N-channel driver
■ Wide input voltage range (5.5V to 30V)
■ 28-Lead SOIC or SSOP packages