Datasheet LTC3899 (Analog Devices) - 3

LTC3899
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3899EFE#PBF LTC3899EFE#TRPBF LTC3899FE 38-Lead Plastic TSSOP –40°C to 125°C LTC3899IFE#PBF LTC3899IFE#TRPBF LTC3899FE 38-Lead Plastic TSSOP –40°C to 125°C LTC3899HFE#PBF LTC3899HFE#TRPBF LTC3899FE 38-Lead Plastic TSSOP –40°C to 150°C LTC3899MPFE#PBF LTC3899MPFE#TRPBF LTC3899FE 38-Lead Plastic TSSOP –55°C to 150°C LTC3899EUHF#PBF LTC3899EUHF#TRPBF 3899 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3899IUHF#PBF LTC3899IUHF#TRPBF 3899 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3899HUHF#PBF LTC3899HUHF#TRPBF 3899 38-Lead (5mm × 7mm) Plastic QFN –40°C to 150°C LTC3899MPUHF#PBF LTC3899MPUHF#TRPBF 3899 38-Lead (5mm × 7mm) Plastic QFN –55°C to 150°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 nonstandard 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
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 2) VBIAS = 12V, VRUN1,2,3 = 5V, VEXTVCC = 0V, VDRVSET = 0V, VPRG3 = Float unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VBIAS Bias Input Supply Operating Voltage Range 4.5 60 V VFB1,2 Buck Regulated Feedback Voltage (Note 4) ITH1,2 Voltage = 1.2V 0°C to 85°C 0.792 0.800 0.808 V l 0.788 0.800 0.812 V VFB3 Boost Regulated Feedback Voltage (Note 4) ITH3 Voltage = 1.2V VPRG3 = FLOAT l 1.182 1.200 1.218 V VPRG3 = 0V l 9.78 10.00 10.22 V VPRG3 = INTVCC l 11.74 12.00 12.26 V IFB1,2 Buck Feedback Current (Note 4) –2 ±50 nA IFB3 Boost Feedback Current (Note 4) VPRG3 = FLOAT ±0.01 ±0.05 µA VPRG3 = 0V 4 6 µA VPRG3 = INTVCC 5 7 µA VREFLNREG Reference Voltage Line Regulation (Note 4) VBIAS = 4.5V to 60V 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 (Note 4) 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, Sink/Source 5µA 2 mmho 3899fa For more information www.linear.com/LTC3899 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagrams Operation Typical Applications Package Description Typical Application Related Parts