MAX8863REUK-T

Number of Outputs : 1
Mounting Style : SMD/SMT
Maximum Operating Temperature : + 85 C
Package / Case : SOT-23
Input Voltage MAX : 6.5 V
Output Type : Adjustable, Fixed
Dropout Voltage (Max) : 0.12 V at 50 mA
Output Current : 120 mA
Load Regulation : 0.011 % / mA
Output Voltage : 1.225 V to 6.5 V or 2.8 V


Features:

© Low Cost
© Low, 55mV Dropout Voltage @ 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


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 (V_IN + 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/Watt
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10sec) .........................+300°C 


Description

The MAX8863REUK-T low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transis-tor 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.

The MAX8863REUK-T feature Dual Mode™ operation:  their out-put voltage is preset (at 3.15V for the T versions, 2.84V for the S versions, or 2.80V for the R versions) or can be adjusted with an external resistor divider. Other features of MAX8863REUK-T include low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX8864 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shut-down mode. Both devices come in a miniature 5-pin SOT23-5 package.