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 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 devices 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 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.
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Cordless Telephones ModemsPCS Telephones Hand-Held InstrumentsCellular Telephones Palmtop ComputersPCMCIA Cards Electronic Planners
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© 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
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VIN 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/Watt
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10sec) .........................+300°C
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