DESCRIPTION

· The UCCx808A devices are a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators designed for off-line or DC-to-DC fixed frequency current-mode switching power supplies with minimal external parts count.

FEATURES

· Dual-Output Drive Stages in Push-Pull Configuration

· Current-Sense Discharge Transistor to Improve Dynamic Response

· 130-μA Typical Starting Current

· 1-mA Typical Run Current

· Operation to 1MHz

· Internal Soft Start

· On-Chip Error Amplifier with 2-MHz Gain Bandwidth Product

· On-Chip VDD Clamping

· Output Drive Stages Capable of 500-mA Peak-Source Current, 1-A Peak-Sink Current

APPLICATIONS

· High-Efficiency Switch-Mode Power Supplies

· Telecom DC-to-DC Converters

· Point-of-Load Power Modules

· Low-Cost Push-Pull and Half-Bridge Applications