APW7075 Datasheet | Anpec Electronics Coropration

Features General Description - Built-In a 500m A LDO and Synchronous Step-Up The APW7075 is a PWM/PFM, high-efficiency, and step- DC-DC Converter - Built-In PWM/PFM Operating Mode up DC-DC converter with an integrated LDO input switch for dual mode application. During battery mode operation, the APW7075 acts as synchronous rectifier and step-up - Provided Dual Input Power Sources - Connect FB to OUT for 3.3V Output Voltage or DC-DC converter with a fixed or adjustable output voltage. When the VIN pin sense 5V input voltage, the APW7075 is switched to LDO operation mode, maintaining the con- GND for 2.5V Output Voltage or an External stant output voltage. Resistor Divider for Adjustable Output Voltage. The input voltage ranges from 0.6 V to 4.5V for step-up - Fixed 300k Hz Operating Frequency DC-DC converter. The start-up is guaranteed at 1V and - High Efficiency Up to 94% at 200m A Output Current - 0.6V to 4.5V Operating Voltage the device operates down to 0.6V. When the device is at LDO operating mode, the suitable output voltage 3.3V and loading current 500m A for maximum power consumption are guaranteed. - 1V Start-Up Input Voltage - Low Battery Voltage Detection The APW7075 is suited for dual mode and portable battery powered appliance with low-battery detector. In dual- - Reverse Voltage Protection - Internal Synchronous Rectifier - Automatic Detection Input Voltage mode applications, the APW7075 draws power from any available 5V USB connection and reverts to battery power when the USB power is removed. - pact SOP-8P and TSSOP-8 Packages - Lead Free and Green Devices Available Pin Configuration (Ro HS pliant) TSSOP-8 Top View SOP-8P Top View Applications - Dual Mode Power System - USB Peripheral - Camcorders and Digital Camera - Hand-Held Instrument - PDAs V IN SHDN V...