ISL78220 Datasheet - Renesas

ISL78220 6-Phase Interleaved Boost PWM Controller

PIN # 1 2 3 4 5 6 7 8 9 10 11 SYMBOL FS SS COMP FB VREF2 GND SLOPE PLL_COMP SYNC CLK_OUT PWM_INV DESCRIPTION A resistor placed from FS to ground will set the PWM switching frequency. Use this pin to set-up the desired soft-start time. A capacitor placed from SS to ground will set up the soft-star.

DATASHEET ISL78220 6-Phase Interleaved Boost PWM Controller with Light Load Efficiency Enhancement FN7688 Rev 4.00 September 2, 2014 The ISL78220 6-phase controller is targeted for applications where high efficiency (>95%) and high power are required. The multiphase boost converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple. Lower ripple results in fewer input/output capacitors and therefore lower component cost and smaller imp.

ISL78220 Features

* Peak current mode PWM control with adjustable slope compensation

* Precision resistor/DCR current sensing

* 2-, 3-, 4- or 6-phase operation

* Adjustable phase dropping/diode emulation/pulse skipping for high efficiency at light load

* Phase dropping facilita

ISL78220-Renesas.pdf