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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

• 0.01µA 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