DESCRIPTION

The device is a high efficient solution for networking dc/dc modules and mobile application compatible with 3.3V bus and 5V bus.

Its able to regulate an output voltage as low as 0.6V. The constant on time topology assures fast load transient response. The embedded voltage feed-forward provides nearly constant switching frequency operation.

FEATURES

■ FROM 3V TO 5.5V VCC RANGE.

■ MINIMUM OUTPUT VOLTAGE AS LOW AS 0.6V.

■ 1V TO 28V INPUT VOLTAGE RANGE.

■ CONSTANT ON TIME TOPOLOGY ALLOWS. OPERATION WITH VERYLOW AND HIGH DUTY CYCLES.

■ VERY FAST LOAD TRANSIENTS.

■ 0.6V, ±1 VREF.

■ SELECTABLE SINKING MODE.

■ LOSSLESS CURRENT LIMIT, AVAILABLE ALSO IN SINKING MODE

■ REMOTE SENSING.

■ OVP,UVP LATCHED PROTECTIONS.

■ 600µA TYP QUIESCENT CURRENT.

■ POWER GOOD AND OVP SIGNALS.

■ PULSE SKIPPING AT LIGTH LOADS.

■ 94 EFFICIENCY FROM 3.3V TO 2.5V.

APPLICATIONS

■ NETWORKING.

■ DC/DC MODULES.

■ DISTRIBUTED POWER.

■ MOBILE APPLICATIONS.

■ CHIP SET, CPU, DSP AND MEMORIES SUPPLY.