FEATURES
- Input voltage: 3.6V to 23V. - Output voltage: 0.8V to VCC. - Duty ratio: 0% to 100% PWM control - Oscillation frequency: 300KHz typ. - Soft-start, Current Limit, Enable function - Thermal Shutdown function - Built-in internal SW P-channel MOS - SOP-8L Pb-Free Package. APPLICATIONS
- PC Motherboard - LCD Monitor - Graphic Card - DVD-Video Player - Telecom Equipment - ADSL Modem - Printer and other Peripheral Equipment - Microprocessor core supply - Networking power supply Pin Assignments GENERAL DESCRIPTION
AP1520 provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 300KHz to 30KHz.
Anachip
