AP1503 - Anachip

AP1503 2.5A PWM Buck DC/DC Converter

The AP1503 series are monolithic ICs designed for step-down DC/DC converters, and own the ability of driving a 2.5A load without additional transistor components. Due to reducing the number of external component, the board space can be saved easily. The external shutdown function can be controlle.

Features

- Output voltage: 3.3V - 300KHz +15% fixed switching frequency - Voltage mode non-synchronous PWM control - Thermal-shutdown and current-limit protection - ON/OFF shutdown control input - Operating voltage can be up to 22V - Output load current: 2.5A - SOP-7L packages - Low power standby mode - Built-in switching transistor on chip „ Applications - Simple High-efficiency step-down regulator - On-card switching regulators - Positive to negative converter - DSL Modems - Portable Computers - Regulated Wall Adapters - Distributed Power „ Pin Assignment SOP7 with Heat Sink VIN 1 VB 2 SD 3 FB 4 .