General Description

The MAX8873T/S/R and MAX8874T/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, 82µA supply current to remain independent of load, making these devices ideal for battery-operated portable equipment such as cellular phones and cordless phones.

Features

♦ LP2980 Pin-Compatible SOT23 Package

♦ Low, 55mV Dropout Voltage at 50mA IOUT (130mV at 120mA)

♦ Low, 73µA No-Load Supply Current Low, 82µA Operating Supply Current (even in dropout)

♦ 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

  Modems

  PCS Telephones

  Hand-Held Instruments

  Cellular Telephones

  Palmtop Computers

  PCMCIA Cards

  Electronic Planners