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ISL910 E PRODUCT S
6 DATASHEET ISL6273 FN9256
Rev 0.00
March 7, 2006 1.2A Low Quiescent Current 1.5MHz High Efficiency Synchronous Buck Regulator
ISL6273 is a 1.2A, 1.5MHz step-down regulator, which is
ideal for powering low-voltage microprocessors in compact
devices such as PDAs and cellular phones. It is optimized
for generating low output voltages down to 0.8V. The supply
voltage range is from 2.7V to 5.5V allowing the use of a
single Li+ cell, three NiMH cells or a regulated 5V input. It
has guaranteed minimum output current of 1.2A. 1.5MHz
pulse-width modulation (PWM) switching frequency allows
using small external components. It has flexible operation
mode selection of forced PWM mode and low IQ mode with
as low as 25пЃA quiescent current for highest light load
efficiency to maximize battery life.
The ISL6273 includes a pair of low on-resistance P-channel …
