General Description

The AP1515 series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 1.5A load without additional transistor component. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes feedback control have good line and load regulation without external design.

Features

- Output voltage: 3.3V and adjustable output version

- Adjustable version output voltage range, 1.23V to 18V+4

- 150KHz +15 fixed switching frequency

- Voltage mode non-synchronous PWM control

- Thermal-shutdown and current-limit protection

- Operating voltage can be up to 22V

- Output load current: 1.5A

- SIP-4L, SOP-8 Pb-Free package

- Low power standby mode

- Built-in switching transistor on chip

- Very Low Cost

Applications

- Simple High-efficiency step-down regulator

- On-card switching regulators

- Positive to negative converter