UC2572 Datasheet | Unitrode

Negative Output Flyback Pulse Width Modulator UC1572 UC2572 UC3572 Features - Simple Single Inductor Flyback PWM for Negative Voltage Generation - Drives External PMOS Switch - Contains UVLO Circuit - Includes Pulse-by-Pulse Current Limit - Low 50µA Sleep Mode Current DESCRIPTION The UC3572 is a negative output flyback pulse width modulator which converts a positive input voltage to a regulated negative output voltage. The chip is optimized for use in a single inductor negative flyback switching converter employing an external PMOS switch. The block diagram consists of a precision reference, an error amplifier configured for voltage mode operation, an oscillator, a PWM parator with...