UCC3808D-1G4

低功耗电流模式推挽PWM LOW POWER CURRENT MODE PUSH-PULL PWM

description

The UCC3808 is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC3808 contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.

Dual Output Drive Stages in Push-Pull Configuration

130-µA Typical Starting Current

1-mA Typical Run Current

Operation to 1-MHz

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