Datasheet LTC7815 (Analog Devices) - 3

LTC7815
ORDER INFORMATION http://www.linear.com/product/LTC7815#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC7815EUHF#PBF LTC7815EUHF#TRPBF 7815 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC7815IUHF#PBF LTC7815IUHF#TRPBF 7815 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC7815HUHF#PBF LTC7815HUHF#TRPBF 7815 38-Lead (5mm × 7mm) Plastic QFN –40°C to 150°C Consult ADI 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: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Notes 2, 4). VBIAS = 12V, VRUN1,2,3 = 5V, EXTVCC = 0V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VBIAS Bias Input Supply Operating Voltage 4.5 38 V Range VFB1,2 Buck Regulated Feedback Voltage (Note 4); ITH1,2 Voltage = 1.2V 0°C to 85°C, All Grades 0.792 0.800 0.808 V LTC7815E, LTC7815I l 0.788 0.800 0.812 V LTC7815H l 0.786 0.800 0.812 V VFB3 Boost Regulated Feedback Voltage (Note 4); ITH3 Voltage = 1.2V 0°C to 85°C, All Grades 1.183 1.200 1.214 V LTC7815E, LTC7815I l 1.181 1.200 1.218 V LTC7815H l 1.176 1.200 1.218 V IFB1,2,3 Feedback Current (Note 4) –2 ±50 nA VREFLNREG Reference Voltage Line Regulation (Note 4); VIN = 4.5V to 38V 0.002 0.02 %/V VLOADREG Output Voltage Load Regulation (Note 4) Measured in Servo Loop; l 0.01 0.1 % ∆ITH Voltage = 1.2V to 0.7V Measured in Servo Loop; l –0.01 –0.1 % ∆ITH Voltage = 1.2V to 2V gm1,2,3 Transconductance Amplifier gm (Note 4); ITH1,2,3 = 1.2V; 2 mmho Sink/Source 5µA 7815f For more information www.linear.com/LTC7815 3 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION TYPICAL APPLICATION RELATED PARTS