UCC1808-2 - Unitrode

UCC1808-2 Low Power Current Mode Push-Pull PWM

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. The UCC3808 dual output drive stages are arranged in a push-pull configuration. Both.

Features

• 130µA Typical Starting Current
• 1mA Typical Run Current
• Operation to 1MHz
• Internal Soft Start
• On Chip Error Amplifier With 2MHz Gain Bandwidth Product
• On Chip VDD Clamping
• Dual Output Drive Stages In Push-Pull Configuration
• Output Drive Stages Capable Of 500mA Peak Source Current, 1A Peak Sink Current BLOCK DIAGRAM 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 ex.