LTC3261IMSE#PBF Analog Devices

LTC3261 High Voltage, Low Quiescent Current Inverting Charge Pump Fea T Descrip T n 4.5V to 32V V Range The LTC 3261 is a high voltage inverting charge pump IN n Inverting Charge Pump Generates V that operates over a wide 4.5V to 32V input range and IN n 60A Quiescent Current in Burst Mode Operation is capable of delivering up to 100mA of output current. n Charge Pump Output Current Up to 100mA The charge pump employs either low quiescent current n 50kHz to 500kHz Programmable Oscillator Burst Mode operation or low noise constant frequency Frequency mode. In Burst Mode operation the charge pump V OUT n Short-Circuit/Thermal Protection regulates to 0.94 V and the LTC3261 draws only 60A IN n Low Profile Thermally Enhanced 12-Pin MSOP of quiescent current. In constant frequency mode the charge Package pump produces an output equal to V and operates at IN a fixed 500kHz or to a programmed frequency between a T 50kHz to 500kHz using an external resistor. The LTC3261 n Bipolar/Inverting Supplies is available in a thermally enhanced 12-pin MSOP package. n Industrial/Instrumentation Bias Generators L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks n and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the Portable Medical Equipment property of their respective owners. n Portable Instruments Typical a T 15V to 15V Inverter 1F V Ripple OUT + C C V OUT MODE = L V = 14.8V 15V 10mV/DIV OUT 15V V V IN OUT AC-COUPLED 10F 10F LTC3261 MODE = H V EN OUT 200mV/DIV V = 14.1V OUT AC-COUPLED MODE RT GND 3261 TA01a 100s/DIV V = 15V 3261 TA01 IN f = 500kHz OSC I = 5mA OUT 3261fb 1 For more information www.linear.com/3261 ion pplica ions pplica ion uresLTC3261 a Te Maxi Mu M r a T p in c F T (Notes 1, 3) TOP VIEW V , EN, MODE......................................... 0.3V to 36V IN 1 NC 12 NC V ........................................................... 36V to 0.3V 2 MODE OUT RT 11 NC 3 10 EN 13 RT ................................................................ 0.3V to 6V V 4 GND 9 V OUT IN + V Short-Circuit Duration ............................. Indefinite C 5 8 C OUT NC 6 7 NC Operating Junction Temperature Range MSE PACKAGE (Note 2) .................................................. 55C to 150C 12-LEAD PLASTIC MSOP Storage Temperature Range ................. 65C to 150C T = 150C, = 40C/W JMAX JA EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB Lead Temperature (Soldering, 10 sec) ...................300C o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3261EMSE PBF LTC3261EMSE TRPBF 3261 12-Lead Plastic MSOP 40C to 125C LTC3261IMSE PBF LTC3261IMSE TRPBF 3261 12-Lead Plastic MSOP 40C to 125C LTC3261HMSE PBF LTC3261HMSE TRPBF 3261 12-Lead Plastic MSOP 40C to 150C LTC3261MPMSE PBF LTC3261MPMSE TRPBF 3261 12-Lead Plastic MSOP 55C to 150C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: