Tailored for notebook computers, the ISL6232CAZA quad-output, power-supply controller includes two PWM controllers generating 0.8V to 5.5V outputs plus 5V and 3.3V linear regulators delivering output currents up to 100 mA. The device employs
Tailored for notebook computers, the ISL6232CAZA quad-output, power-supply controller includes two PWM controllers generating 0.8V to 5.5V outputs plus 5V and 3.3V linear regulators delivering output currents up to 100 mA. The device employs constant-frequency, current-mode PWM control with out-of-phase operation and exhibits a quiescent-power dissipation as low as 3.5 mW. Features include a fixed operating frequency of 300 kHz, current-mode control architecture, current sensing or DCR current sensing, soft-start and soft-stop, output discharge, selectable power-up sequence and forced PWM, pulse skipping, and an ultrasonic pulse skipping mode. The controller comes in a 28-lead, lead-free QSOP priced at $3 each/1,000. INTERSIL CORP., Palm Bay, FL. (888) 468-3774.
