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DESCRIPTION

The MP2101 is an internally compensated 1.6MHz fixed-frequency PWM step-down switcher with a 200mA low dropout (LDO) linear regulator. It is ideal for portable equipment powered by a single cell Lithium-Ion (Li+) Battery. The MP2101 can provide 800mA and 200mA of load current from a 2.5V to 6V input voltage. Both output voltages can be regulated as low as 0.6V.

FEATURES

? 0.8A Switcher Output and 0.2A LDO Output

? VIN1 Range for Switcher: 2.5V to 6V

? VIN2 Range for LDO: 1.2V to VIN1

? Internal Power MOSFET Switches

? Stable with Low ESR Output Ceramic Capacitors

? Up to 93 Efficiency

? 0.01?A Shutdown Current

? 1.6MHz Fixed Switching Frequency

? Up to 100 Switcher Duty Cycle

? Thermal Shutdown

? Cycle-by-Cycle Over Current Protection

? Short Circuit Protection

? Power On Reset Output

? Available in 3x3 10-Pin QFN Packages

APPLICATIONS

? DVD+/-RW Drives

? Smart Phones

? PDAs

? Digital Cameras

? Portable Instruments