Datasheet LTC3727A-1 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | High Efficiency, 2-Phase Synchronous Step-Down Switching Regulators |
| Pages / Page | 32 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| File Format / Size | PDF / 341 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
LTC3727A-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (V TOP VIEW IN) ... 36V to –0.3V Top Side Driver Voltages RUN/SS1 1 28 PGOOD BOOST1, BOOST2 .. 42V to –0.3V SENSE1+ 2 27 TG1 SENSE1– 3 SW1 Switch Voltage (SW1, SW2) ... 36V to –5V 26 V 4 25 BOOST1 INTV OSENSE1 CC, EXTVCC, (BOOST1-SW1), PLLFLTR 5 24 VIN (BOOST2-SW2) ... 8.5V to –0.3V PLLIN 6 23 BG1 RUN/SS1, RUN/SS2, PGOOD .. 7V to –0.3V FCB 7 22 EXTVCC SENSE1+, SENSE2+, SENSE1–, I 8 21 TH1 INTVCC SENSE2– Voltages ... 14V to –0.3V SGND 9 20 PGND PLLIN, PLLFLTR, FCB Voltages .. INTVCC to –0.3V 3.3V 10 19 OUT BG2 ITH1, ITH2, VOSENSE1, VOSENSE2 Voltages ... 2.7V to –0.3V I 11 18 TH2 BOOST2 Peak Output Current <10μs (TG1, TG2, BG1, BG2) ...3A V 12 17 OSENSE2 SW2 INTV SENSE2– 13 TG2 CC Peak Output Current ... 50mA 16 Operating Temperature Range (Note 2).. –40°C to 85°C SENSE2+ 14 15 RUN/SS2 Junction Temperature (Note 3) ... 125°C G PACKAGE Storage Temperature Range ... –65°C to 150°C 28-LEAD PLASTIC SSOP T Lead Temperature (Soldering, 10 sec) .. 300°C JMAX = 125°C, θJA = 95°C/W
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3727AEG-1#PBF LTC3727AEG-1#TRPBF LTC3727AEG-1 28-Lead Plastic SSOP –40°C to 85°C LTC3727AIG-1#PBF LTC3727AIG-1#TRPBF LTC3727AIG-1 28-Lead Plastic SSOP –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3727AEG-1 LTC3727AEG-1#TR LTC3727AEG-1 28-Lead Plastic SSOP –40°C to 85°C LTC3727AIG-1 LTC3727AIG-1#TR LTC3727AIG-1 28-Lead Plastic SSOP –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/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 15V, VRUN/SS1, 2 = 5V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loops
VOSENSE1, 2 Regulated Feedback Voltage (Note 4); ITH1, 2 Voltage = 1.2V l 0.792 0.800 0.808 V IVOSENSE1, 2 Feedback Current (Note 4) –5 –50 nA VREFLNREG Reference Voltage Line Regulation VIN = 3.6V to 30V (Note 4) 0.002 0.02 %/V VLOADREG Output Voltage Load Regulation (Note 4) Measured in Servo Loop; ΔITH Voltage = 1.2V to 0.7V l 0.1 0.5 % Measured in Servo Loop; ΔITH Voltage = 1.2V to 2.0V l –0.1 –0.5 % 3727a1fa 2
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (V TOP VIEW IN) ... 36V to –0.3V Top Side Driver Voltages RUN/SS1 1 28 PGOOD BOOST1, BOOST2 .. 42V to –0.3V SENSE1+ 2 27 TG1 SENSE1– 3 SW1 Switch Voltage (SW1, SW2) ... 36V to –5V 26 V 4 25 BOOST1 INTV OSENSE1 CC, EXTVCC, (BOOST1-SW1), PLLFLTR 5 24 VIN (BOOST2-SW2) ... 8.5V to –0.3V PLLIN 6 23 BG1 RUN/SS1, RUN/SS2, PGOOD .. 7V to –0.3V FCB 7 22 EXTVCC SENSE1+, SENSE2+, SENSE1–, I 8 21 TH1 INTVCC SENSE2– Voltages ... 14V to –0.3V SGND 9 20 PGND PLLIN, PLLFLTR, FCB Voltages .. INTVCC to –0.3V 3.3V 10 19 OUT BG2 ITH1, ITH2, VOSENSE1, VOSENSE2 Voltages ... 2.7V to –0.3V I 11 18 TH2 BOOST2 Peak Output Current <10μs (TG1, TG2, BG1, BG2) ...3A V 12 17 OSENSE2 SW2 INTV SENSE2– 13 TG2 CC Peak Output Current ... 50mA 16 Operating Temperature Range (Note 2).. –40°C to 85°C SENSE2+ 14 15 RUN/SS2 Junction Temperature (Note 3) ... 125°C G PACKAGE Storage Temperature Range ... –65°C to 150°C 28-LEAD PLASTIC SSOP T Lead Temperature (Soldering, 10 sec) .. 300°C JMAX = 125°C, θJA = 95°C/W
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3727AEG-1#PBF LTC3727AEG-1#TRPBF LTC3727AEG-1 28-Lead Plastic SSOP –40°C to 85°C LTC3727AIG-1#PBF LTC3727AIG-1#TRPBF LTC3727AIG-1 28-Lead Plastic SSOP –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3727AEG-1 LTC3727AEG-1#TR LTC3727AEG-1 28-Lead Plastic SSOP –40°C to 85°C LTC3727AIG-1 LTC3727AIG-1#TR LTC3727AIG-1 28-Lead Plastic SSOP –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/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 15V, VRUN/SS1, 2 = 5V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loops
VOSENSE1, 2 Regulated Feedback Voltage (Note 4); ITH1, 2 Voltage = 1.2V l 0.792 0.800 0.808 V IVOSENSE1, 2 Feedback Current (Note 4) –5 –50 nA VREFLNREG Reference Voltage Line Regulation VIN = 3.6V to 30V (Note 4) 0.002 0.02 %/V VLOADREG Output Voltage Load Regulation (Note 4) Measured in Servo Loop; ΔITH Voltage = 1.2V to 0.7V l 0.1 0.5 % Measured in Servo Loop; ΔITH Voltage = 1.2V to 2.0V l –0.1 –0.5 % 3727a1fa 2
