LTC3290 High Voltage Boost Charge Pump FEATURES DESCRIPTION n Wide Input Range: 4.5V to 55V V /V The LTC 3290 is a high voltage boost charge pump with IN AUX n Reverse Input Protection to 55V a wide 4.5V to 55V input voltage range that can deliver Features n Split Input Supplies for High Efficiency Boost Ratios up to 50mA of output current. n I Up to 50mA OUT Applications When the V pin is grounded, the LTC3290 operates SET n 15A V Quiescent Current IN as a standard boost charge pump, boosting the V OUT Typical Application n 1A V Quiescent Current AUX output to a maximum of the sum of the V and V IN AUX n Stable with Ceramic Capacitors Description input supplies. An external resistor divider can be used n Short-Circuit/Thermal Protection on the V , FB and GND pins to set the output voltage Absolute Maximum Ratings OUT n Thermally Enhanced 10-Pin MSOP Package to any value between 1V and V + V with hysteretic IN AUX Order Information BurstMode operation. APPLICATIONS Pin Configuration Alternatively, the device can be configured in a V tracking IN n High Efficiency General Purpose High Voltage Boost Electrical Characteristics mode, in which the V pin regulates at a fixed offset OUT Supplies above the V pin. The offset voltage is programmed with IN Typical Performance Characteristics n High Side N-FET Driver external resistors, one from the V to the V pin and OUT SET n Pin Functions Industrial/Automotive Power Switching the other from the FB pin to GND. The maximum output n V Tracking Supply voltage is limited to V + V . IN IN AUX Block Diagram The LTC3290 is available in a thermally enhanced 10-pin Operation MSOP package. Applications Information All registered trademarks and trademarks are the property of their respective owners. Typical Applications Package Description TYPICAL APPLICATION Typical Application 15V Output from a 12V Input (with 5V Auxiliary Input) Efficiency vs Output Current Related Parts Standard Boost Charge Pump Mode, V = 0V SET 90 1F 80 70 60 C+ C 15V 5V V V AUX OUT 0mA TO 20mA 50 10F 10F LTC3290 40 1.4M 12V V V IN SET 30 10F 20 V = 12V IN EN FB V = 5V 10 AUX V = 15V BIAS PGOOD OUT 100k GND 0 4.7F 3290 TA01 0.01 0.1 1 10 20 I (mA) OUT 3290 TA01b Rev. 0 1 Document Feedback For more information www.analog.com EFFICIENCY (PV /P(V + V ) OUT IN AUXLTC3290 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 3) V , EN, V .............................................. 60V to 60V TOP VIEW IN AUX V to V , V to EN ...............................................60V V 1 10 V IN AUX IN AUX OUT EN 2 9 V SET 11 + V , V .................................................. 0.3V to 60V OUT SET C 3 8 FB GND C 4 7 PGOOD FB, PGOOD .....................................0.3V to BIAS + 0.3V V 5 6 BIAS IN BIAS ............................................................. 0.3V to 6V MSE PACKAGE 10-LEAD PLASTIC MSOP V Short-Circuit Duration ............................. Indefinite OUT T = 150C, = 45C/W JMAX JA Operating Junction Temperature Range EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB (Notes 2, 3) ............................................ 55C to 150C Storage Temperature Range ................. 65C to 150C Lead Temperature (Soldering, 10 sec) ...................300C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3290EMSE PBF LTC3290EMSE TRPBF LTGZW 10-Lead Plastic MSOP 40C to 125C LTC3290IMSE PBF LTC3290IMSE TRPBF LTGZW 10-Lead Plastic MSOP 40C to 125C LTC3290HMSE PBF LTC3290HMSE TRPBF LTGZW 10-Lead Plastic MSOP 40C to 150C LTC3290MPMSE PBF LTC3290MPMSE TRPBF LTGZW 10-Lead Plastic MSOP 55C to 150C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with TRMPBF suffix. Rev. 0 2 For more information www.analog.com