A7220 Datasheet | AiT Semiconductor

DESCRIPTION The A7220 is a current mode synchronous buck converter, and has a proprietary W-mode™® Gm curvature circuit that enables fast transient response, enables the device to adopt to both low ESR output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The A7220 operates from 4.3V to 18V VIN input, and the output voltage can be programmed between 0.918V to 14V with 2A output current, and +/-1.5% high accuracy output voltage. Due to 95mΩ (High side) and 90mΩ (Low side) integrated FETs, the A7220 works in high efficiency (up to 94% @12V Input, 3.3V output) The A7220 is available in SOP8 Package. ORDERING INFORMATION Package Type Part Number SOP8 A7220M8R M A7220M8VR Note R: Tape & Reel V: Halogen free Package Ai T provides all Ro HS products Suffix “ V “ means Halogen free Package FEATURES - 2A Output Current - High Efficient Integrated FETs Optimized for portable application: 95mΩ (High side) and 90mΩ (Low side) - High Efficiency Up to 95% Efficiency @ 5V Input, 3.3V Output Up to 93% Efficiency @ 12V Input, 3.3V Output - Wide Input Voltage Range: 4.3V to 18V @ 2A loading - Wide Output Voltage Range: 0.918V to 14V @2A loading ( 32W output @max) - Low Output Ripple and Allows Ceramic Output Capacitor - Thermal Shutdown Protection - 340KHz Switching Frequency(fsw) - Cycle By Cycle Over Current Limit - +/-1.5% High Accuracy Feedback Voltage - Available in SOP8 and package APPLICATION - Wide Range of Applications for Low Voltage System - Digital TV Power Supply - High Definition Blu-ray Disc Players - Networking Home Terminal - Digital STB - Ideal for Portable Applications TYPICAL APPLICATION REV3.0   - JUL 2010 RELEASED, FEB 2012 UPDATED - -1- Ai T Semiconductor...