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-16L Pb-Free Package. APPLICATIONS
-Microprocessor core supply -Networking power supply -LCD MNT, TV power supply -Telecom power supply Pin Assignments (Top View) GND 1 GND 2 FB 3 EN 4 OCSET 5 Vcc 6 Output 7 Output 8 AP1511 16 GND 15 GND 14 NC 13 NC 12 VC 11 PVcc 10 Output 9 Output SOP-16L GENERAL DESCRIPTION
AP1511 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
