MAX8863T/S/R, Low-Dropout, 120mA Linear Regulators MAX8864T/S/R General Description Benefits and Features The MAX8863T/S/R and MAX8864T/S/R low-dropout linear Low Cost regulators operate from a +2.5V to +6.5V input range and Low, 55mV Dropout Voltage at 50mA I OUT deliver up to 120mA. A PMOS pass transistor allows the Low, 68A No-Load Supply Current low, 80A supply current to remain independent of load, Low, 80A Operating Supply Current (even in making these devices ideal for battery-operated portable dropout) equipment such as cellular phones, cordless phones, and modems. Low, 350V Output Noise RMS The devices feature Dual Mode operation: their output Miniature External Components voltage is preset (at 3.15V for the T versions, 2.84V for Thermal Overload Protection the S versions, or 2.80V for the R versions) or can be Output Current Limit adjusted with an external resistor divider. Other features Reverse Battery Protection include low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The Dual Mode Operation: Fixed or Adjustable MAX8864 also includes an auto-discharge function, which (1.25V to 6.5V) Output actively discharges the output voltage to ground when the Low-Power Shutdown device is placed in shutdown mode. Both devices come in a miniature 5-pin SOT23 package. Ordering Information Applications PART TEMP RANGE PIN-PACKAGE Cordless Telephones MAX8863TEUK+T -40C to +85C 5 SOT23 PCS Telephones MAX8863TMUK/PR3+T -55C to +125C 5 SOT23 Cellular Telephones MAX8863SEUK+T -40C to +85C 5 SOT23 PCMCIA Cards MAX8863REUK+T -40C to +85C 5 SOT23 Modems MAX8864TEUK+T -40C to +85C 5 SOT23 Hand-Held Instruments MAX8864SEUK+T -40C to +85C 5 SOT23 Palmtop Computers Electronic Planners MAX8864REUK+T -40C to +85C 5 SOT23 *Alternate marking information: CY = MAX8863T, CZ = MAX8863S, DA = MAX8864T, DB = MAX8864S +Denotes a lead(Pb)-free/RoHS-compliant package. Typical Operating Circuit Pin Configuration TOP VIEW + OUT IN OUTPUT SHDN 1 5 SET VOLTAGE MAX8863 MAX8864 C C OUT IN MAX8863 GND 2 1F 1F SHDN MAX8864 BATTERY GND SET IN 3 4 OUT SOT23 Dual Mode is a trademark of Maxim Integrated Products, Inc. 19-0466 Rev 6 5/16MAX8863T/S/R, Low-Dropout, 120mA Linear Regulators MAX8864T/S/R Absolute Maximum Ratings V to GND .................................................................-7V to +7V Operating Temperature Range ........................... -40C to +85C IN Output Short-Circuit Duration ........................................... Infinite Operating Temperature SET to GND ............................................................-0.3V to +7V Range (MAX8863TMUK/PR3+).................... -55C to +125C SHDN to GND ............................................................-7V to +7V Junction Temperature ......................................................+150C SHDN to IN ..............................................................-7V to +0.3V Storage Temperature Range ............................ -65C to +150C OUT to GND ...............................................-0.3V to (V + 0.3V) Lead Temperature (soldering, 10s) .................................+300C IN Continuous Power Dissipation (multilayer board, T = +70C) Soldering Temperature (reflow) .......................................+260C A SOT23 (3.9mW/C above +70C) ............................312.6mW 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. (Note 1) Package Thermal Characteristics SOT23 Junction-to-Ambient Thermal Resistance ( ) .....255.9C/W JA Junction-to-Case Thermal Resistance ( ) ...............81C/W JC 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 (V = +3.6V, V = 0V, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 2) IN GND A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage (Note 3) V 2.5 6.5 V IN MAX886 T 3.05 3.15 3.25 0mA I OUT Output Voltage V MAX886 S 2.75 2.84 2.93 V OUT 50mA, SET = GND MAX886 R 2.70 2.80 2.88 Adjustable Output Voltage V V 6.5 V OUT SET Range (Note 4) Maximum Output Current 120 mA Current Limit (Note 5) I 280 mA LIM I = 0mA 68 150 LOAD Ground Pin Current I SET = GND A Q I = 50mA 80 LOAD I = 1mA 1.1 OUT Dropout Voltage (Note 6) mV I = 50mA 55 120 OUT V = 2.5V to 6.5V, SET tied to OUT, IN Line Regulation V -0.15 0 +0.15 %/V LNR I = 1mA OUT SET = GND 0.011 0.040 I = 0mA to OUT Load Regulation V %/mA LDR 50mA SET tied to OUT 0.006 C = 1F 350 OUT Output Voltage Noise 10Hz to 1MHz V RMS C = 100F 220 OUT SHUTDOWN V 2.0 IH SHDN Input Threshold V V 0.4 IL Maxim Integrated 2 www.maximintegrated.com