Description
●The device is a high efficient solution for networking dc/dc modules and mobile applications compatible with 3.3V bus and 5V bus.
●It"s 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 in spite of a wide input voltage range. An integrator can be introduced in the control loop to reduce the static output voltage error.
●The remote sensing improves the static and dynamic regulation, recovering the wires voltage drop.
●Pulse skipping technique reduces power consump tion at light loads. Drivers current capability allows output currents in excess of 20A.
●Features
●■ FROM 3V TO 5.5V VCC RANGE
●■ MINIMUM OUTPUT VOLTAGE AS LOW AS 0.6V
●■ 1V TO 35V INPUT VOLTAGE RANGE
●■ CONSTANT ON TIME TOPOLOGY
●■ 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
