General Description

The MAX8863T/S/R and MAX8864T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 80μA supply current to remain independent of load, making these devices ideal for battery-operated portable equipment such as cellular phones, cordless phones, and modems.

Benefts and Features

● Low Cost

● Low, 55mV Dropout Voltage at 50mA IOUT

● Low, 68μA No-Load Supply Current Low, 80μA Operating Supply Current (even in dropout)

● Low, 350μVRMS Output Noise

● Miniature External Components

● Thermal Overload Protection

● Output Current Limit

● Reverse Battery Protection

● Dual Mode Operation: Fixed or Adjustable (1.25V to 6.5V) Output

● Low-Power Shutdown

Applications

● Cordless Telephones

● PCS Telephones

● Cellular Telephones

● PCMCIA Cards

● Modems

● Hand-Held Instruments

● Palmtop Computers

● Electronic Planners