POWER LOSS (mW) LT8330 Low I Boost/SEPIC/ Q Inverting Converter with 1A, 60V Switch Fea T Descrip T n 3V to 40V Input Voltage Range The LT 8330 is a current mode DC/DC converter capable n Ultralow Quiescent Current and Low Ripple Burst of generating either positive or negative output voltages Mode Operation: I = 6A using a single feedback pin. It can be configured as a Q n 1A, 60V Power Switch boost, SEPIC or inverting converter consuming as low as n Positive or Negative Output Voltage Programming 6A of quiescent current. Low ripple Burst Mode opera- with a Single Feedback Pin tion maintains high efficiency down to very low output n Fixed 2MHz Switching Frequency currents while keeping the output ripple below 15mV in n Accurate 1.6V EN/UVLO Pin Threshold a typical application. The internally compensated current n Internal Compensation and Soft-Start mode architecture results in stable operation over a wide n Low Profile (1mm) ThinSOT Package range of input and output voltages. Integrated soft-start n Low Profile (0.75mm) 8-Lead (3mm 2mm) DFN and frequency foldback functions are included to control Package inductor current during start-up. The 2MHz operation combined with small package options, enables low cost, area efficient solutions. a T L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the n Industrial and Automotive property of their respective owners. n Telecom n Medical Diagnostic Equipment n Portable Electronics Typical a T 48V Boost Converter Efficiency and Power Loss 100 1000 6.8H V OUT V 90 900 IN 48V 12V 135mA 80 800 4.7F 4.7F V SW IN 700 70 LT8330 60 600 1M 4.7pF EN/UVLO 50 500 FBX 40 400 INTV GND CC 30 300 34.8k 1F 20 200 EFFICIENCY 10 100 POWER LOSS 0 0 0 40 80 120 160 LOAD CURRENT (mA) 8330 TA01b 8330fa 1 For more information www.linear.com/LT8330 EFFICIENCY (%) ion pplica ions pplica ion uresLT8330 a Te Maxi Mu M r a T (Note 1) SW ............................................................................60V Operating Junction Temperature (Note 3) V , EN/UVLO ............................................................40V LT8330E, LT8330I ............................. 40C to 125C IN EN/UVLO Pin Above V Pin ........................................6V LT8330H ............................................ 40C to 150C IN INTV (Note 2) ..........................................................4V Storage Temperature Range .................. 65C to 150C CC FBX ...........................................................................4V p in c F T TOP VIEW TOP VIEW FBX 1 8 EN/UVLO SW 1 6 V IN NC 2 7 INTV CC 9 GND 2 5 INTV SW 3 6 V CC IN 3 4 FBX EN/UVLO SW GND 4 5 S6 PACKAGE 6-LEAD PLASTIC TSOT-23 DDB PACKAGE 8-LEAD (3mm 2mm) PLASTIC DFN = 125C/W, = 102C/W JA JC = 60C/W JA EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB o r Der i n F Ma T (