MAX8875

Features:

Power-OK Output
Small Output Capacitor (1µF ceramic)
Preset Output Voltages (±1% accuracy)
Guaranteed 150mA Output Current
85µA No-Load Supply Current
Low 110mV Dropout at 100mA Load (165mV at 150mA load)
Thermal-Overload and Short-Circuit Protection
Reverse-Battery Protection
60dB PSRR at 100Hz
1µA max Shutdown Current

Application

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


Pinout




Specifications

IN, SHDN , POK to GND.............................................-7V to +7V
SHDN to IN............................................................-7V to +0.3V
OUT to GND ..............................................-0.3V to (VIN + 0.3V)
Output Short-Circuit Duration ....................................Indefinite
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23 (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 +150°C
Lead Temperature (soldering, 10s) ............................+300°C 


Description

The MAX8875 low-dropout linear regulator operates from a +2.5V to +6.5V input range and delivers up to 150mA. A P channel MOSFET pass transistor allows its 85µA supply current to remain independent of the load, making this MAX8875 ideal for battery-operated portable equipment such as PCS phones, cellular phones, cordless phones, and modems.

The MAX8875 features a power-OK output that indicates when the output is out of regulation. The device is available in several preset output voltage versions: 5.0V, 3.3V, 3.0V, 2.7V, or 2.5V. Other features include 1µA (max) shut down current, short-circuit protection, thermal shutdown protection, and reverse-battery protection. The device comes in a miniature 5-pin SOT23 package.

The MAX8875 is optimized for use with a 1µF ceramic out-put capacitor. For a pin-compatible, functionally equivalent device for use with a higher ESR output capacitor, see the MAX8885 data sheet.