FEATURES
- PWM Buck Control Circuitry - Operating voltage can be up to 27V - Under voltage Lockout (UVLO) Protection - Short Circuit Protection (SCP) - Soft-start circuit - Variable Oscillator Frequency -- 300Khz Max - 1.25V voltage reference Output - 8-pin PDIP and SOP packages APPLICATIONS
- Backlight inverter - LCD Monitor - XDROM, XDSL Product - DC/DC converters in computers, etc. Pin Assignment ( Top View ) OUT VCC COMP FB 1 2 3 4 8 GND 7 CT 6 SS 5 SCP PDIP/SOP Ordering Information AP2004 GENERAL DESCRIPTION
All the functions include an on-chip 1.25V reference output, an error amplifier, an adjustable oscillator, a soft-start, UVLO, SCP circuitry, and a push-pull output circuit. Switching frequency is adjustable by trimming CT. During low VCC situation, the UVLO makes sure that the outputs are off until the internal circuit operates normally. Pin Descriptions Name CT FB SS COMP OUT GND VCC SCP DESCRIPTION
Timing Capacitor Voltage Feedback Soft-Start. Feedback Loop Compen...
Anachip
