MAX8863S Datasheet | Maxim Integrated

Description 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 120m A. A PMOS pass transistor 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 output 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 shutdown mode. Both devices e in a miniature 5-pin SOT23 package. Applications - - Cordless Telephones - - PCS Telephones - - Cellular Telephones - - PCMCIA Cards - - Modems - - Hand-Held Instruments - - Palmtop puters - - Electronic Planners Typical Operating Circuit Benefits and Features - - Low Cost - - Low, 55m V Dropout Voltage at 50m A IOUT - - Low, 68μA No-Load Supply Current Low, 80μA Operating Supply Current (even in dropout) - - Low, 350μVRMS Output Noise - - Miniature External ponents - - Thermal Overload Protection - - Output Current Limit - - Reverse Battery Protection - - Dual Mode Operation: Fixed or Adjustable (1.25V to 6.5V) Output - - Low-Power Shutdown Ordering Information PART TEMP RANGE PIN-PACKAGE MAX8863TEUK+T -40°C to +85°C 5 SOT23 MAX8863TMUK/PR3+T -55°C to +125°C 5 SOT23 MAX8863SEUK+T -40°C to +85°C 5 SOT23 MAX8863REUK+T -40°C to +85°C 5...