Datasheet LT3988 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Dual 60V Monolithic 1A Step-Down Switching Regulator |
| Pages / Page | 24 / 2 — absoluTe MaxiMuM raTings. pin conFiguraTion. (Note 1). orDer inForMaTion … |
| File Format / Size | PDF / 287 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
LT3988
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
V TOP VIEW IN (Notes 7, 8) .. –0.3V to 80V DA1 1 16 V BOOST ..80V IN1 SW1 2 15 TRACK/SS1 BOOST1 3 EN/UVLO (Note 7) ...80V 14 FB1 BD 4 17 13 RT BOOST above SW ...30V EN/UVLO 5 GND 12 SYNC BOOST2 6 11 FB2 EN/UVLO above V SW2 7 10 TRACK/SS2 IN1 ...6V DA2 8 9 VIN2 RT, SYNC ..6V MSE PACKAGE TRACK/SS, FB ..5V 16-LEAD PLASTIC MSOP θ BD ...20V JA = 40°C/W, θJC = 10°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB Operating Junction Temperature Range (Note 2) LT3988E .. –40°C to 125°C LT3988I ... –40°C to 125°C LT3988H .. –40°C to 150°C Storage Temperature Range .. –65°C to 150°C Lead Temperature (Soldering, 10 sec) ...300°C
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE*
LT3988EMSE#PBF LT3988EMSE#TRPBF 3988 16-Lead Plastic MSOP –40°C to 125°C LT3988IMSE#PBF LT3988IMSE#TRPBF 3988 16-Lead Plastic MSOP –40°C to 125°C LT3988HMSE#PBF LT3988HMSE#TRPBF 3988 16-Lead Plastic MSOP –40°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 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
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN1/2 = 12V, unless otherwise noted. (Notes 2, 5, 6) PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN1 Undervoltage Lockout (Note 3) VIN1 Rising l 3.9 4.1 V VIN1 Undervoltage Lockout Hysteresis 260 mV VIN1 Overvoltage Lockout (Note 3) VIN1 Rising l 60 64 66 V VIN1 Overvoltage Lockout Hysteresis 2.1 V VIN2 Undervoltage Lockout (Note 3) VIN2 Rising, VIN1 = 4.1V l 2 2.6 3.1 V VIN2 Undervoltage Lockout Hysteresis 135 mV EN/UVLO Input Current VEN/UVLO = 1.2V –0.5 0.5 µA EN/UVLO Enable Threshold 300 500 mV EN/UVLO Undervoltage Threshold VEN/UVLO = Rising l 1.1 1.2 1.3 V EN/UVLO Undervoltage Threshold Hysteresis 120 mV 3988f 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
V TOP VIEW IN (Notes 7, 8) .. –0.3V to 80V DA1 1 16 V BOOST ..80V IN1 SW1 2 15 TRACK/SS1 BOOST1 3 EN/UVLO (Note 7) ...80V 14 FB1 BD 4 17 13 RT BOOST above SW ...30V EN/UVLO 5 GND 12 SYNC BOOST2 6 11 FB2 EN/UVLO above V SW2 7 10 TRACK/SS2 IN1 ...6V DA2 8 9 VIN2 RT, SYNC ..6V MSE PACKAGE TRACK/SS, FB ..5V 16-LEAD PLASTIC MSOP θ BD ...20V JA = 40°C/W, θJC = 10°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB Operating Junction Temperature Range (Note 2) LT3988E .. –40°C to 125°C LT3988I ... –40°C to 125°C LT3988H .. –40°C to 150°C Storage Temperature Range .. –65°C to 150°C Lead Temperature (Soldering, 10 sec) ...300°C
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE*
LT3988EMSE#PBF LT3988EMSE#TRPBF 3988 16-Lead Plastic MSOP –40°C to 125°C LT3988IMSE#PBF LT3988IMSE#TRPBF 3988 16-Lead Plastic MSOP –40°C to 125°C LT3988HMSE#PBF LT3988HMSE#TRPBF 3988 16-Lead Plastic MSOP –40°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 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
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN1/2 = 12V, unless otherwise noted. (Notes 2, 5, 6) PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN1 Undervoltage Lockout (Note 3) VIN1 Rising l 3.9 4.1 V VIN1 Undervoltage Lockout Hysteresis 260 mV VIN1 Overvoltage Lockout (Note 3) VIN1 Rising l 60 64 66 V VIN1 Overvoltage Lockout Hysteresis 2.1 V VIN2 Undervoltage Lockout (Note 3) VIN2 Rising, VIN1 = 4.1V l 2 2.6 3.1 V VIN2 Undervoltage Lockout Hysteresis 135 mV EN/UVLO Input Current VEN/UVLO = 1.2V –0.5 0.5 µA EN/UVLO Enable Threshold 300 500 mV EN/UVLO Undervoltage Threshold VEN/UVLO = Rising l 1.1 1.2 1.3 V EN/UVLO Undervoltage Threshold Hysteresis 120 mV 3988f 2 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
