General Description

The MAX8862 low-cost, low-dropout, dual linear voltage regulator is ideal for battery-powered and portable applications. The regulators have independent supply inputs and provide 250mA and 100mA, respectively, with a full-load dropout voltage of 160mV. Both regulators use P-channel MOSFET pass transistors and maintain low quiescent current independent of load current. In dropout, the MOSFET does not suffer from excessive base currents, as do saturated PNP transistors.

特性 Features

? Low Cost

? Guaranteed 250mA and 100mA Output Currents, with Current Limiting

? Dual Mode Operation: Fixed or Adjustable Output from +2V to +11V

? +2.5V to +11.5V Input Range

? 160mV Dropout Voltage at 200mA Output Current

? Low Supply Current—Even in Dropout

?? 200μA Operating

?? <1μA Shutdown

? Power-Good Indicator

? Reverse-Battery Protection

? Thermal Overload Protection

Applications

?? Cellular Phones

?? Cordless Phones

?? PCS Phones

?? PCMCIA Cards

?? Modems

?? Hand-Held Instruments

?? Electronic Planners