Datasheet LT3742 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Dual, 2-Phase Step-Down Switching Controller |
| 页数 / 页 | 26 / 2 — absoluTe MaxiMuM raTings. pin conFiguraTion. (Note 1). orDer inForMaTion. … |
| 文件格式/大小 | PDF / 319 Kb |
| 文件语言 | 英语 |
absoluTe MaxiMuM raTings. pin conFiguraTion. (Note 1). orDer inForMaTion. LEAD FREE FINISH. TAPE AND REEL. PART MARKING
该数据表的模型线
文件文字版本
LT3742
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN Voltage ..30V TOP VIEW UVLO Voltage ..30V + – PG1, PG2 Voltage ..30V SW1 NC NC SENSE1 SENSE1 FB1 SWB, BIAS Voltage ...40V 24 23 22 21 20 19 SENSE1+, SENSE2+ Voltage ..30V G1 1 18 VC1 SENSE1–, SENSE2– Voltage ..30V VIN 2 17 PG1 RUN/SS1, RUN/SS2 Voltage ...6V UVLO 3 16 RUN/SS1 25 FB1, FB2 Voltage ...6V BIAS 4 15 RUN/SS2 V SWB 5 14 PG2 C1, VC2 Voltage ..6V G2 6 13 V Junction Temperature ... 125°C C2 Operating Junction Temperature Range 7 8 9 10 11 12 + – (Note 2) .. –40°C to 125°C NC NC SW2 FB2 Storage Temperature Range .. –65°C to 125°C SENSE2 SENSE2 UF PACKAGE 24-LEAD (4mm × 4mm) PLASTIC QFN TJMAX = 125°C, θJA = 36°C/W EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3742EUF#PBF LT3742EUF#TRPBF 3742 24-Lead (4mm × 4mm) Plastic QFN –40°C to 125°C (Note 2) Consult LTC Marketing for parts specified with wider operating temperature ranges. 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. VIN = 5V unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Operating Input Voltage VUVLO = 1.5V l 3.5 4.0 V Quiescent Current VRUN/SS1 = VRUN/SS2 = VFB1 = VFB2 = 1V 5.0 7.0 mA Shutdown Current VRUN/SS1 = VRUN/SS2 = 0V 20 35 µA UVLO Pin Threshold UVLO Pin Voltage Rising l 1.20 1.25 1.28 V UVLO Pin Hysteresis Current VUVLO = 1V, Current Flows Into Pin 1.8 3 4 µA RUN/SS Pin Threshold 0.2 0.5 V RUN/SS Pin Charge Current VRUN/SS = 0V 0.5 1 1.5 µA FB Pin Voltage l 0.788 0.800 0.812 V FB Pin Voltage Line Regulation VIN = 5V to 30V 0.01 %/V 3742fa 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 Revision History Related Parts
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN Voltage ..30V TOP VIEW UVLO Voltage ..30V + – PG1, PG2 Voltage ..30V SW1 NC NC SENSE1 SENSE1 FB1 SWB, BIAS Voltage ...40V 24 23 22 21 20 19 SENSE1+, SENSE2+ Voltage ..30V G1 1 18 VC1 SENSE1–, SENSE2– Voltage ..30V VIN 2 17 PG1 RUN/SS1, RUN/SS2 Voltage ...6V UVLO 3 16 RUN/SS1 25 FB1, FB2 Voltage ...6V BIAS 4 15 RUN/SS2 V SWB 5 14 PG2 C1, VC2 Voltage ..6V G2 6 13 V Junction Temperature ... 125°C C2 Operating Junction Temperature Range 7 8 9 10 11 12 + – (Note 2) .. –40°C to 125°C NC NC SW2 FB2 Storage Temperature Range .. –65°C to 125°C SENSE2 SENSE2 UF PACKAGE 24-LEAD (4mm × 4mm) PLASTIC QFN TJMAX = 125°C, θJA = 36°C/W EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3742EUF#PBF LT3742EUF#TRPBF 3742 24-Lead (4mm × 4mm) Plastic QFN –40°C to 125°C (Note 2) Consult LTC Marketing for parts specified with wider operating temperature ranges. 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. VIN = 5V unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Operating Input Voltage VUVLO = 1.5V l 3.5 4.0 V Quiescent Current VRUN/SS1 = VRUN/SS2 = VFB1 = VFB2 = 1V 5.0 7.0 mA Shutdown Current VRUN/SS1 = VRUN/SS2 = 0V 20 35 µA UVLO Pin Threshold UVLO Pin Voltage Rising l 1.20 1.25 1.28 V UVLO Pin Hysteresis Current VUVLO = 1V, Current Flows Into Pin 1.8 3 4 µA RUN/SS Pin Threshold 0.2 0.5 V RUN/SS Pin Charge Current VRUN/SS = 0V 0.5 1 1.5 µA FB Pin Voltage l 0.788 0.800 0.812 V FB Pin Voltage Line Regulation VIN = 5V to 30V 0.01 %/V 3742fa 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 Revision History Related Parts