Datasheet LT3501 (Analog Devices) - 2

LT3501
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN1/2, SHDN, PG1/2 .. 25V/–0.3V TOP VIEW SW1/2 ..VIN1/2 VIN1 1 20 BST1 BST1/2 ... 35V/–0.3V SW1 2 19 SS/TRACK1 BST1/2 Pins Above SW1/2 ..25V IND1 3 18 VC1 IND1/2 ..±5A VOUT1 4 17 FB1 V PG1 5 16 R OUT1/2 .. VIN1/2/–0.3V T/SYNC 21 FB1/2, SS1/2, R PG2 6 15 SHDN T/SYNC ..5.5V V VOUT2 7 14 FB2 C1/2 .. ±1mA Operating Junction Temperature Range IND2 8 13 VC2 LT3501EFE (Notes 2, 8) ... –40°C to 125°C SW2 9 12 SS/TRACK2 VIN2 10 11 BST2 LT3501IFE (Notes 2, 8) .. –40°C to 125°C Storage Temperature Range .. –65°C to 150°C FE PACKAGE 20-LEAD PLASTIC TSSOP Lead Temperature (Soldering, 10 sec) ...300°C TJMAX = 125°C, θJA = 45°C/W, θJC(PAD) = 10°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3501EFE#PBF LT3501EFE#TRPBF LT3501 20-Lead Plastic TSSOP –40°C to 125°C LT3501IFE#PBF LT3501IFE#TRPBF LT3501 20-Lead Plastic TSSOP –40°C to 125°C 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: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
elecTrical characTerisTics The
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denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. VVIN1/2 = 15V, VBST1/2 = open, VRT/SYNC = 2V, VVOUT1/2 = open, unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS
SHDN Threshold VOUT1/2 = 0V, RT/SYNC = 133k l 1.23 1.28 1.37 V SHDN Input Current VSHDN = 1.375V 7 10 13 µA VSHDN = 1.225V 2 3 5 µA Minimum Input Voltage Ch 1 (Note 3) VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V, RT/SYNC = 133k 2.8 3 V Minimum Input Voltage Ch 2 VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V 2.8 3 V Supply Shutdown Current Ch 1 VSHDN = 0V l 9 30 µA Supply Shutdown Current Ch 2 VSHDN = 0V 0 5 µA Supply Quiescent Current Ch 1 VFB1/2 = 0.9V 3.5 5 mA Supply Quiescent Current Ch 2 VFB1/2 = 0.9V 200 500 µA Feedback Voltage Ch 1/Ch 2 VVC1/2 = 1V l 0.784 0.8 0.816 V Feedback Voltage Line Regulation VVIN1/2 = 3V to 25V l –1 0 1 % Feedback Voltage Offset Ch 1 to Ch 2 VVC1/2 = 1V l –16 0 16 mV 3501fd 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Related Parts