ISL6226 Datasheet (Intersil Corporation) - Advanced PWM and Linear Power Controller for Portable Applications

ISL6226, Advanced PWM and Linear Power Controller for Portable Applications

VIN (Pin 1) Provides battery voltage to the oscillator for feed-forward rejection of the input voltage variation.

Also, this pin programs frequency of the internal clock and gain of the ramp generator.

PGOODL (Pin 2) PGOODL is an open drain output used to indicate the status of the LDO output volt

® ISL6226 Data Sheet August 2002 FN9078.1 Advanced PWM and Linear Power Controller for Portable Applications The ISL6226 provides power control and protection for two user selected output voltages required in high-performance notebook PC applications.

The IC integrates a fixed, selectable frequency pulse-width-modulation (PWM) controller and a 3A LDO linear regulator controller with monitoring and protection circuitry in a single 24 lead SSOP package.

The PWM controller regulates the battery i

ISL6226 Features

* Provides Two Regulated Voltages - Linear Regulator, User Selected, Current Limited - High Efficiency PWM Over Wide Line and Load Range - Synchronous Buck Converter on PWM Output - Hysteretic Operation at Light Load

* Dual Mode Operation: - Directly From Battery Input, VIN, of 5.6V