Datasheet LT3471 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Dual 1.3A, 1.2MHz Boost/Inverter in 3mm × 3mm DFN |
| Pages / Page | 16 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| File Format / Size | PDF / 307 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING
Model Line for this Datasheet
Text Version of Document
LT3471
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
V TOP VIEW IN Voltage ..16V SW1, SW2 Voltage ... –0.4V to 42V FB1N 1 10 SW1 FB1N, FB1P, FB2N, FB2P Voltage... 12V or VIN – 1.5V FB1P 2 9 SHDN/SS1 SHDN/SS1, SHDN/SS2 Voltage ... 16V V 3 11 8 V REF IN V FB2P 4 7 SHDN/SS2 REF Voltage ...1.5V FB2N 5 6 SW2 Maximum Junction Temperature .. 125°C Operating Temperature Range (Note 2) ...– 40°C to 85°C DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN Storage Temperature Range ...– 65°C to 125°C TJMAX = 125°C, θJA = 43°C/ W, θJC = 3°C/W EXPOSED PAD (PIN 11) IS GND MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3471EDD#PBF LT3471EDD#TRPBF LBHM 10-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3471EDD LT3471EDD#TR LBHM 10-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
ELECTRICAL CHARACTERISTICS The
●
denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are TA = 25°C. VIN = VSHDN = 3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Operating Voltage 2.1 2.4 V Reference Voltage 0.991 1.000 1.009 V l 0.987 1.013 V Reference Voltage Current Limit (Note 3) 1 1.4 mA Reference Voltage Load Regulation 0mA ≤ IREF ≤ 100μA (Note 3) 0.1 0.2 %/100μA Reference Voltage Line Regulation 2.6V ≤ VIN ≤ 16V 0.03 0.08 %/V Error Amplifi er Offset Transition from Not Switching to Switching, VFBP = VFBN = 1V ±2 ±3 mV FB Pin Bias Current VFB = 1V (Note 3) l 60 100 nA Quiescent Current VSHDN = 1.8V, Not Switching 2.5 4 mA Quiescent Current in Shutdown VSHDN = 0.3V, VIN = 3V 0.01 1 μA Switching Frequency 1 1.2 1.4 MHz Maximum Duty Cycle 90 94 % l 86 % Minimum Duty Cycle 15 % Switch Current Limit At Minimum Duty Cycle 1.5 2.05 2.6 A At Maximum Duty Cycle (Note 4) 0.9 1.45 2.0 A Switch VCESAT ISW = 0.5A (Note 5) 150 250 mV Switch Leakage Current VSW = 5V 0.01 1 μA SHDN/SS Input Voltage High 1.8 V 3471fb 2
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
V TOP VIEW IN Voltage ..16V SW1, SW2 Voltage ... –0.4V to 42V FB1N 1 10 SW1 FB1N, FB1P, FB2N, FB2P Voltage... 12V or VIN – 1.5V FB1P 2 9 SHDN/SS1 SHDN/SS1, SHDN/SS2 Voltage ... 16V V 3 11 8 V REF IN V FB2P 4 7 SHDN/SS2 REF Voltage ...1.5V FB2N 5 6 SW2 Maximum Junction Temperature .. 125°C Operating Temperature Range (Note 2) ...– 40°C to 85°C DD PACKAGE 10-LEAD (3mm × 3mm) PLASTIC DFN Storage Temperature Range ...– 65°C to 125°C TJMAX = 125°C, θJA = 43°C/ W, θJC = 3°C/W EXPOSED PAD (PIN 11) IS GND MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3471EDD#PBF LT3471EDD#TRPBF LBHM 10-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3471EDD LT3471EDD#TR LBHM 10-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
ELECTRICAL CHARACTERISTICS The
●
denotes specifi cations which apply over the full operating temperature range, otherwise specifi cations are TA = 25°C. VIN = VSHDN = 3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Operating Voltage 2.1 2.4 V Reference Voltage 0.991 1.000 1.009 V l 0.987 1.013 V Reference Voltage Current Limit (Note 3) 1 1.4 mA Reference Voltage Load Regulation 0mA ≤ IREF ≤ 100μA (Note 3) 0.1 0.2 %/100μA Reference Voltage Line Regulation 2.6V ≤ VIN ≤ 16V 0.03 0.08 %/V Error Amplifi er Offset Transition from Not Switching to Switching, VFBP = VFBN = 1V ±2 ±3 mV FB Pin Bias Current VFB = 1V (Note 3) l 60 100 nA Quiescent Current VSHDN = 1.8V, Not Switching 2.5 4 mA Quiescent Current in Shutdown VSHDN = 0.3V, VIN = 3V 0.01 1 μA Switching Frequency 1 1.2 1.4 MHz Maximum Duty Cycle 90 94 % l 86 % Minimum Duty Cycle 15 % Switch Current Limit At Minimum Duty Cycle 1.5 2.05 2.6 A At Maximum Duty Cycle (Note 4) 0.9 1.45 2.0 A Switch VCESAT ISW = 0.5A (Note 5) 150 250 mV Switch Leakage Current VSW = 5V 0.01 1 μA SHDN/SS Input Voltage High 1.8 V 3471fb 2
