LT3088 800mA Single Resistor Rugged Linear Regulator FEATURES DESCRIPTION n Extended Safe Operating Area The LT 3088 is an 800mA low dropout linear regulator n Maximum Output Current: 800mA designed for rugged industrial applications. A key feature n Stable with or without Input/Output Capacitors of the IC is the extended safe operating area (SOA). The n Wide Input Voltage Range: 1.2V to 36V LT3088 can be paralleled for higher output current or heat n Single Resistor Sets Output Voltage spreading. The device withstands reverse input and reverse n Output Adjustable to 0V output-to-input voltages without reverse current flow. n 50A SET Pin Current: 1% Initial Accuracy The LT3088s precision 50A reference current source n Output Voltage Noise: 27V RMS allows a single resistor to program output voltage to n Parallel Multiple Devices for Higher Current, Heat any level between zero and 34.5V. The current reference Spreading and Lower Noise architecture makes load regulation independent of output n Pin Compatible Upgrade to LT1117 voltage. The LT3088 is stable with or without input and n Reverse-Battery and Reverse-Current Protection output capacitors. n <1mV Typical Load Regulation Independent of V OUT n Internal protection circuitry includes reverse-battery and <0.001%/V Typical Line Regulation n reverse-current protection, current limiting and thermal 3-Lead SOT-223, 3-Lead DD-Pak, 8-Lead 3mm limiting. The LT3088 is offered in the 3-lead SOT-223, 3mm DFN Packages 3-lead DD-Pak, and an 8-lead 3mm 3mm DFN package. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear APPLICATIONS Technology Corporation. All other trademarks are the property of their respective owners. n All Surface Mount Power Supply n Rugged Industrial Power Supply n Post Regulator for Switching Supplies n Low Output Voltage Supply n Intrinsic Safety Applications TYPICAL APPLICATION SET Pin Current Wide Safe Operating Area Supply 51.0 I = 2mA LOAD 50.8 V IN 50.6 LT3088 IN 50.4 50A 50.2 50.0 + 49.8 I OUT 49.6 OUT 1.5V 49.4 SET 800mA 750* 10F* 49.2 30.1k 3088 TA01a 49.0 *OPTIONAL 75 50 25 0 25 50 75 100 125 150 175 TEMPERATURE (C) 3088 G01 3088fb 1 For more information www.linear.com/LT3088 SET PIN CURRENT (A)LT3088 ABSOLUTE MAXIMUM RATINGS (Note 1) All voltages Relative to V OUT IN Pin to OUT Pin Differential Voltage .....................40V Storage Temperature Range .................. 65C to 150C SET Pin Current (Note 6) .....................................25mA Lead Temperature (Soldering, 10 sec) SET Pin Voltage (Relative to OUT, Note 6) .............. 10V M, ST Packages Only ........................................300C Output Short-Circuit Duration .......................... Indefinite Operating Junction Temperature Range (Note 2) E-, I-Grades ....................................... 40C to 125C H-Grade ............................................. 40C to 150C MP-Grade .......................................... 55C to 150C PIN CONFIGURATION TOP VIEW FRONT VIEW FRONT VIEW OUT 1 8 IN 3 IN 3 IN OUT 2 7 IN 9 TAB IS TAB IS OUT 2 OUT 2 OUT OUT NC OUT 3 6 OUT SET 4 5 NC 1 SET 1 SET ST PACKAGE M PACKAGE DD PACKAGE 3-LEAD PLASTIC SOT-223 3-LEAD PLASTIC DD-PAK 8-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 25C/W, = 15C/W T = 150C, = 28C/W, = 5.3C/W JMAX JA JC T = 150C, = 14C/W, = 3C/W JMAX JA JC JMAX JA JC EXPOSED PAD (PIN 9) IS OUT, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3088EDD PBF LT3088EDD TRPBF LGSZ 40C to 125C 8-Lead (3mm 3mm) Plastic DFN LT3088IDD PBF LT3088IDD TRPBF LGSZ 8-Lead (3mm 3mm) Plastic DFN 40C to 125C LT3088HDD PBF LT3088HDD TRPBF LGSZ 8-Lead (3mm 3mm) Plastic DFN 40C to 150C LT3088EST PBF LT3088EST TRPBF 3088 3-Lead Plastic SOT-223 40C to 125C LT3088IST PBF LT3088IST TRPBF 3088 3-Lead Plastic SOT-223 40C to 125C LT3088HST PBF LT3088HST TRPBF 3088 3-Lead Plastic SOT-223 40C to 150C LT3088MPST PBF LT3088MPST TRPBF 3088 3-Lead Plastic SOT-223 55C to 150C LT3088EM PBF LT3088EM TRPBF LT3088M 3-Lead Plastic DD-Pak 40C to 125C LT3088IM PBF LT3088IM TRPBF LT3088M 3-Lead Plastic DD-Pak 40C to 125C LT3088HM PBF LT3088HM TRPBF LT3088M 3-Lead Plastic DD-Pak 40C to 150C LT3088MPM PBF LT3088MPM TRPBF LT3088M 3-Lead Plastic DD-Pak 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. For more information on lead free part marking, go to: