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