LT8365 Low I Boost/SEPIC/Inverting Q Converter with 1.5A, 150V Switch FEATURES DESCRIPTION n Wide Input Voltage Range: 2.8V to 60V The LT 8365 is a current mode DC/DC converter with a n Ultralow Quiescent Current and Low Ripple 1.5A, 150V switch operating from a 2.8V to 60V input. BurstMode Operation: I = 9A With a unique single feedback pin architecture it is capable Q n 1.5A, 150V Power Switch of boost, SEPIC or inverting configurations. Burst Mode n Positive or Negative Output Voltage Programming operation consumes as low as 9A quiescent current to with a Single Feedback Pin maintain high efficiency at very low output currents, while n Programmable Frequency (100kHz to 500kHz) keeping typical output ripple below 15mV. n Synchronizable to an External Clock An external compensation pin allows optimization of loop n Spread Spectrum Frequency Modulation for Low EMI bandwidth over a wide range of input and output voltages n BIAS Pin for Higher Efficiency and programmable switching frequencies between 100kHz n Programmable Undervoltage Lockout (UVLO) and 500kHz. A SYNC/MODE pin allows synchronization n Thermally Enhanced 16-lead MSOP Package to an external clock. It can also be used to select between n AEC-Q100 Qualified for Automotive Applications burst or pulse-skipping modes of operation with or with- out spread spectrum frequency modulation for low EMI. For increased efficiency, a BIAS pin can accept a second APPLICATIONS input to supply the INTV regulator. Additional features CC n Industrial and Automotive include frequency foldback and programmable soft-start n Telecom to control inductor current during startup. n Medical Diagnostic Equipment n The LT8365 is available in a thermally enhanced 16-lead Portable Electronics MSOP package with four pins removed for high voltage All registered trademarks and trademarks are the property of their respective owners. pin spacings. TYPICAL APPLICATION 400kHz, 250V Output Inverting Converter Switching Waveforms 0.1F 20 V OUT 250V 10mA I L 0.22F 500mA/DIV 0.1F 10H 20 V IN 9V TO 30V 10F 0.22F V SW V SW IN 50V/DIV EN/UVLO 1M FBX V OUT 8365 TA01b LT8365 1s/DIV BIAS SYNC/MODE INTV CC RT SS GND V C 3.24k 1F 84.5k 0.22F 107k 1nF 8365 TA01a D1, D2, D3, D4: DIODES INC. DFLS1150 L1: WURTH ELEKTRONIK WE-PD 74437324100 Rev. A 1 Document Feedback For more information www.analog.comLT8365 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW SW ..........................................................................150V EN/UVLO 1 16 SW1 V , EN/UVLO ............................................................60V IN V 3 14 SW2 IN 17 BIAS ..........................................................................60V PGND, INTV 5 12 SYNC/MODE CC GND NC 6 11 SS EN/UVLO Pin Above V Pin, SYNC.............................6V IN BIAS 7 10 RT INTV .............................................................. (Note 2) V 8 9 FBX C CC MSE PACKAGE V ...............................................................................4V C VARIATION: MSE16 (12) FBX ...........................................................................4V 16-LEAD PLASTIC MSOP = 45C/W, = 10C/W JA JC Operating Junction Temperature (Note 3) EXPOSED PAD (PIN 17) IS PGND AND GND, MUST BE SOLDERED TO PCB LT8365E ............................................ 40C to 125C LT8365J, LT8365H ............................ 40C to 150C Storage Temperature Range .................. 65C to 150C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT8365EMSE PBF LT8365EMSE TRPBF 8365 16-Lead Plastic MSOP with 4 Pins Removed 40C to 125C LT8365JMSE PBF LT8365JMSE TRPBF 8365 16-Lead Plastic MSOP with 4 Pins Removed 40C to 150C LT8365HMSE PBF LT8365HMSE TRPBF 8365 16-Lead Plastic MSOP with 4 Pins Removed 40C to 150C AUTOMOTIVE PRODUCTS** LT8365EMSE WPBF LT8365EMSE WTRPBF 8365 16-Lead Plastic MSOP with 4 Pins Removed 40C to 125C LT8365JMSE WPBF LT8365JMSE WTRPBF 8365 16-Lead Plastic MSOP with 4 Pins Removed 40C to 150C LT8365HMSE WPBF LT8365HMSE WTRPBF 8365 16-Lead Plastic MSOP with 4 Pins Removed 40C 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. **Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These models are designated with a W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for thesemodels. Rev. A 2 For more information www.analog.com