MAX8873

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


Application

Cordless Telephones Modems
PCS Telephones Hand-Held Instruments
Cellular Telephones Palmtop Computers
PCMCIA Cards Electronic Planners


Pinout




Specifications

V_IN to GND .................................................................-7V to +7V
Output Short-Circuit Duration ..........................................Infinite
SET to GND .............................................................-0.3V to +7V
SHDN to GND..............................................................-7V to +7V
SHDN to IN ................................................................-7V to 0.3V
OUT to GND ................................................-0.3V to (VIN + 0.3V)
Continuous Power Dissipation (TA = +70°C)
SOT23-5 (derate 7.1mW/°C above +70°C) .................571mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature....................................................+150°C
JA..............................................................................140°C/W
Storage Temperature Range ........................-65°C to +160°C
Lead Temperature (soldering, 10sec) ..........................+300°C


Description

The MAX8873T/S/R and MAX8874T/S/R low-dropout lin-ear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transis-tor allows the low, 82µA supply current to remain independent of load, making these MAX8873 ideal for battery-operated portable equipment such as cellular phones and cordless phones.