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MAX8863T Dataheets PDF



Part Number MAX8863T
Manufacturers Maxim
Logo Maxim
Description 120mA Linear Regulators
Datasheet MAX8863T DatasheetMAX8863T Datasheet (PDF)

MAX8863T/S/R, MAX8864T/S/R Low-Dropout, 120mA Linear Regulators General 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 120mA. 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.

  MAX8863T   MAX8863T


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MAX8863T/S/R, MAX8864T/S/R Low-Dropout, 120mA Linear Regulators General 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 120mA. 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 come in a miniature 5-pin SOT23 package. Applications ●● Cordless Telephones ●● PCS Telephones ●● Cellular Telephones ●● PCMCIA Cards ●● Modems ●● Hand-Held Instruments ●● Palmtop Computers ●● Electronic Planners Typical Operating Circuit Benefits and Features ●● Low Cost ●● Low, 55mV Dropout Voltage at 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 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 SOT23 MAX8864TEUK+T -40°C to +85°C 5 SOT23 MAX8864SEUK+T -40°C to +85°C 5 SOT23 MAX8864REUK+T -40°C to +85°C 5 SOT23 *Alternate marking information: CY_ _ = MAX8863T, CZ_ _ = MAX8863S, DA_ _ = MAX8864T, DB_ _ = MAX8864S +Denotes a lead(Pb)-free/RoHS-compliant package. Pin Configuration BATTERY CIN 1µF IN OUT MAX8863 MAX8864 SHDN GND SET OUTPUT VOLTAGE COUT 1µF Dual Mode is a trademark of Maxim Integrated Products, Inc. TOP VIEW + SHDN 1 5 SET GND 2 MAX8863 MAX8864 IN 3 4 OUT SOT23 19-0466; Rev 6; 5/16 MAX8863T/S/R, MAX8864T/S/R Low-Dropout, 120mA Linear Regulators Absolute Maximum Ratings 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 (multilayer board, TA = +70°C) SOT23 (3.9mW/°C above +70°C).............................312.6mW Operating Temperature Range............................ -40°C to +85°C Operating Temperature Range (MAX8863TMUK/PR3+).................... -55°C to +125°C Junction Temperature.......................................................+150°C Storage Temperature Range............................. -65°C to +150°C Lead Temperature (soldering, 10s).................................. +300°C Soldering Temperature (reflow)........................................+260°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Package Thermal Characteristics (Note 1) SOT23 Junction-to-Ambient Thermal Resistance (θJA)......255.9°C/W Junction-to-Case Thermal Resistance (θJC)................81°C/W Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. Electrical Characteristics (VIN = +3.6V, VGND = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER Input Voltage (Note 3) Output Voltage SYMBOL VIN VOUT CONDITIONS 0mA ≤ IOUT ≤ 50mA, SET = GND MAX886_T MAX886_S MAX886_R MIN 2.5 3.05 2.75 2.70 TYP 3.15 2.84 2.80 MAX 6.5 3.25 2.93 2.88 Adjustable Output Voltage Range (Note 4) VOUT VSET 6.5 Maximum Output Current Current Limit (Note 5) Ground Pin Current Dropout Voltage (Note 6) Line Regulation Load Regulation Output Voltage Noise SHUTDOWN SHDN Inpu.


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