MT1470

AEROSEMI MT1470 CASC 2A,4.5V-21V Input,500kHz Synchronous Step-Down Converter FEATURES  High Efficiency: Up to 96%  500KHz Frequency Operation  2A Output Current  No Schottky Diode Required  4.5V to 21V Input Voltage Range  0.8V Reference  Slope Compensated Current Mode Control for Excellent Line and Load Transient Response  Integrated internal compensation  Stable with Low ESR Ceramic Output Capacitors  Over Current Protection with Hiccup-Mode  Thermal Shutdown  Inrush Current Limit and Soft Start  Available in SOT23-6 Package  -40°C to +85°C Temperature Range GENERAL DESCRIPTION The MT1470 is a fully integrated, high efficiency 2A synchronous rectified step-down converter. The MT1470 operates at high efficiency over a wide output current load range. This device offers two operation modes, PWM control and PFM Mode switching control, which allows a high efficiency over the wider range of the load. The MT1470 requires a minimum number of readily available standard external components and is available in an 6-pin SOT23 ROHS compliant package. APPLICATIONS  Distributed Power Systems  Digital Set Top Boxes  Flat Panel Television and Monitors  Wireless and DSL Modems  Notebook Computer TYPICAL APPLICATION VIN CIN 22μF C2 1uF BS VIN SW MT1470 EN FB GND L 10μH R1 100k 1% R2 19k 1% Figure 1. Basic Application Circuit VOUT C1 22pF opt. COUT 22μF*2 MT2492 Rev1.0 www.aerosemi.com Aerosemi Proprietary Information.Unauthorized Photocopy and Duplic...