Datasheet Intersil ISL8036 — 数据表

DATASHEET
ISL8036, ISL8036A FN6853
Rev 3.00
August 17, 2012 Dual 3A 1MHz/2.5MHz High Efficiency Synchronous Buck Regulator
ISL8036, ISL8036A are integrated power controllers rated for
dual 3A output current or current sharing operation with a
1MHz (ISL8036)/2.5MHz (ISL8036A) step-down regulator,
which is ideal for any low power low-voltage applications. The
channels are 180В° out-of-phase for input RMS current and EMI
reduction. It is optimized for generating low output voltages
down to 0.8V each. The supply voltage range is from 2.8V to
6V, allowing for the use of a single Li+ cell, three NiMH cells or
a regulated 5V input. The two channels are 180В° out-of-phase,
and each one has a guaranteed minimum output current of
3A. They can be combined to form a single 6A output in the
current sharing mode. While in current sharing, the interleaved
PWM signals reduce input and output ripple. Features The ISL8036, ISL8036A includes a pair of low ON-resistance
P-channel and N-channel internal MOSFETs to maximize
efficiency and minimize external component count. 100%
duty-cycle operation allows less than 250mV dropout voltage
at 3A each. Reverse Overcurrent Protection The ISL8036, ISL8036A offers an independent 1ms
Power-good (PG) timer at power-up. When shutdown, ISL8036,
ISL8036A discharges the output capacitor. Other features …