LT3483ES6#TRMPBF Analog Devices

POWER LOSS (mW) LT3483/LT3483A Inverting Micropower DC/DC Converters with Schottky FEATURES DESCRIPTION n Internal 40V Schottky Diode The LT 3483/LT3483A are micropower inverting DC/DC n One Resistor Feedback (Other Resistor Inside) converters with integrated Schottky and one resistor n Internal 40V, 200mA/400mA Power Switch feedback. The small package size, high level of integration n Generates Regulated Negative Outputs to 38V and use of tiny surface mount components yield a solution 2 n Low Quiescent Current: size as small as 40mm . The devices feature a quiescent 40A in Active Mode current of only 40A at no load, which further reduces <1A in Shutdown Mode to 0.1A in shutdown. A current limited, fixed off-time n Low V Switch: 200mV at 150mA control scheme conserves operating current, resulting CESAT n Wide Input Range: 2.5V to 16V in high efficiency over a broad range of load current. A n Uses Small Surface Mount Components precisely trimmed 10A feedback current enables one n Output Short-Circuit Protected resistor feedback and virtually eliminates feedback load- n Available in a 6-Lead SOT-23 (LT3483 Only) and ing of the output. The 40V switch enables voltage outputs Low Profile 8-Lead DFN (2mm 2mm 0.75mm) up to 38V to be generated without the use of costly Packages transformers. The LT3483/LT3483As low 300ns off-time permits the use of tiny low profile inductors and capaci - tors to minimize footprint and cost in space-conscious APPLICATIONS portable applications. n LCD Bias L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property n Handheld Computers of their respective owners. Protected by U.S. Patents, including 7710700. n Battery Backup n Digital Cameras n OLED Bias TYPICAL APPLICATION 3.6V to 8V DC/DC Converter Efficiency and Power Loss 75 1000 0.22F V = 3.6V IN 10H V IN 3.6V EFFICIENCY 10 70 100 SW V OUT V D IN 8V 25mA LT3483 4.7F 5pF 806k 65 10 SHDN FB POWER 2.2F LOSS GND 60 1 3483 TA01a 55 0.1 0.1 1 10 100 LOAD CURRENT (mA) 3483 TA01b 3483fc 1 EFFICIENCY (%)LT3483/LT3483A ABSOLUTE MAXIMUM RATINGS (Note 1) V Voltage ............................................................... 16V Operating Ambient Temperature Range (Note 2) IN SW Voltage .............................................................. 40V LT3483E/LT3483AE ..............................40C to 85C D Voltage ............................................................... 40V LT3483I/LT3483AI ..............................40C to 125C FB Voltage ............................................................... 2.5V Junction Temperature ......................................... 125C SHDN Voltage .......................................................... 16V Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) (TSOT-23 Package Only) .................................. 300C PIN CONFIGURATION TOP VIEW TOP VIEW 8 FB 1 SHDN SW 1 6 V 2 GND 7 D IN 9 GND 2 5 D 3 GND 6 NC FB 3 4 SHDN SW 4 5 V IN S6 PACKAGE DC PACKAGE 6-LEAD PLASTIC TSOT-23 8-LEAD (2mm 2mm) PLASTIC DFN T = 125C, = 192C/W JMAX JA T = 125C, = 88.5C/W JMAX JA EXPOSED PAD (PIN 9) IS GND ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3483EDC PBF LT3483EDC TRPBF LCYT 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LT3483ES6 PBF LT3483ES6 TRPBF LTBKX 6-Lead Plastic TSOT-23 40C to 85C LT3483AEDC PBF LT3483AEDC TRPBF LFXD 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LT3483IDC PBF LT3483IDC TRPBF LCYT 8-Lead (2mm 2mm) Plastic DFN 40C to 125C LT3483IS6 PBF LT3483IS6 TRPBF LTBKX 6-Lead Plastic TSOT-23 40C to 125C LT3483AIDC PBF LT3483AIDC TRPBF LFXD 8-Lead (2mm 2mm) Plastic DFN 40C to 125C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT3483EDC LT3483EDC TR LCYT 8-Lead (2mm 2mm) Plastic DFN 40C to 85C LT3483ES6 LT3483ES6 TR LTBKX 6-Lead Plastic TSOT-23 40C to 85C 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: