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UM3501 is a high-efficiency pulse-width-modulated (PWM) step-down DC-DC converter, capable of delivering 600mA output current over a wide input voltage range from 2.5V to 5.5V. The target application of UM3501 is for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, .
include lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection. Applications z Cellular and Smart Phones z Microprocessors and DSP Core Supplies z Wireless and DSL Modems z PDAs, GPS z MP3 Player z Portable Instruments Features z High Efficiency: Up to 90% z 1.2MHz Constant Switching Frequency z 600mA Output Current z Integrated Main Switch and Synchronous Rectifier. No Schottky Diode Required z 2.5V to 5.5V Input Voltage Range z Low Quiescent Current: 50µA z Thermal Fault Protection z <1µA Shutdown Current z Lead Free SOT23-5 Package and .
UM3501 - ETC
Mespek Oy, PL103, 00701 Helsinki Puh. (09)3507360 Fax (09)3453384 E-mail: [email protected] http://www.mespek.com UM350.
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