Datasheet LT8641 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | 65V, 3.5A Synchronous Step-Down Silent Switcher with 2.5μA Quiescent Current |
| 页数 / 页 | 26 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). NOT. ORDER … |
| 修订版 | B |
| 文件格式/大小 | PDF / 3.4 Mb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). NOT. ORDER INFORMATION http://www.linear.com/product/LT8641#orderinfo
该数据表的模型线
LT8641
文件文字版本
LT8641
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN, EN/UV ..65V PG ...42V TOP VIEW BIAS ..25V FB, TR/SS . ...4V FB PG GND SYNC/MODE SYNC/MODE Voltage . ..6V 20 19 18 17 Operating Junction Temperature Range (Note 2) BIAS 1 16 TR/SS LT8641E ... –40°C to 125°C INTVCC 2 15 RT LT8641I .. –40°C to 125°C BST 3 14 EN/UV 22 V 4 13 V LT8641H .. –40°C to 150°C IN1 SW IN2 Storage Temperature Range .. –65°C to 150°C 21 GND1 6 SW 11 GND2 7 8 9 10 SW SW GND1 GND2 UDC PACKAGE 18-LEAD (3mm × 4mm) PLASTIC QFN θJA = 40°C/W, θJC(PAD) = 12°C/W (NOTE 3) EXPOSED PAD (PINS 21, 22) ARE SW, SHOULD BE SOLDERED TO PCB NOTE: PINS 5 AND 12 ARE REMOVED. CONFIGURATION DOES
NOT
MATCH JEDEC 20-LEAD PACKAGE OUTLINE
ORDER INFORMATION http://www.linear.com/product/LT8641#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT8641EUDC#PBF LT8641EUDC#TRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C LT8641IUDC#PBF LT8641IUDC#TRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C LT8641HUDC#PBF LT8641HUDC#TRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage l 2.6 3.0 V VIN Quiescent Current VEN/UV = 0V 0.75 3 µA l 0.75 10 µA VEN/UV = 2V, Not Switching, VSYNC = 0V 1.7 4 µA l 1.7 10 µA VEN/UV = 2V, Not Switching, VSYNC = 2V 0.3 0.5 mA VIN Current in Regulation VOUT = 0.8V, VIN = 6V, Output Load = 100µA l 17 50 µA VOUT = 0.8V, VIN = 6V, Output Load = 1mA l 200 350 µA Feedback Reference Voltage VIN = 6V, ILOAD = 0.5A 0.804 0.81 0.816 V VIN = 6V, ILOAD = 0.5A l 0.79 0.81 0.822 V Feedback Voltage Line Regulation VIN = 4.0V to 42V, ILOAD = 0.5A l 0.004 0.03 %/V Rev A 2 For more information www.analog.com 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 Applications Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN, EN/UV ..65V PG ...42V TOP VIEW BIAS ..25V FB, TR/SS . ...4V FB PG GND SYNC/MODE SYNC/MODE Voltage . ..6V 20 19 18 17 Operating Junction Temperature Range (Note 2) BIAS 1 16 TR/SS LT8641E ... –40°C to 125°C INTVCC 2 15 RT LT8641I .. –40°C to 125°C BST 3 14 EN/UV 22 V 4 13 V LT8641H .. –40°C to 150°C IN1 SW IN2 Storage Temperature Range .. –65°C to 150°C 21 GND1 6 SW 11 GND2 7 8 9 10 SW SW GND1 GND2 UDC PACKAGE 18-LEAD (3mm × 4mm) PLASTIC QFN θJA = 40°C/W, θJC(PAD) = 12°C/W (NOTE 3) EXPOSED PAD (PINS 21, 22) ARE SW, SHOULD BE SOLDERED TO PCB NOTE: PINS 5 AND 12 ARE REMOVED. CONFIGURATION DOES
NOT
MATCH JEDEC 20-LEAD PACKAGE OUTLINE
ORDER INFORMATION http://www.linear.com/product/LT8641#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT8641EUDC#PBF LT8641EUDC#TRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C LT8641IUDC#PBF LT8641IUDC#TRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C LT8641HUDC#PBF LT8641HUDC#TRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage l 2.6 3.0 V VIN Quiescent Current VEN/UV = 0V 0.75 3 µA l 0.75 10 µA VEN/UV = 2V, Not Switching, VSYNC = 0V 1.7 4 µA l 1.7 10 µA VEN/UV = 2V, Not Switching, VSYNC = 2V 0.3 0.5 mA VIN Current in Regulation VOUT = 0.8V, VIN = 6V, Output Load = 100µA l 17 50 µA VOUT = 0.8V, VIN = 6V, Output Load = 1mA l 200 350 µA Feedback Reference Voltage VIN = 6V, ILOAD = 0.5A 0.804 0.81 0.816 V VIN = 6V, ILOAD = 0.5A l 0.79 0.81 0.822 V Feedback Voltage Line Regulation VIN = 4.0V to 42V, ILOAD = 0.5A l 0.004 0.03 %/V Rev A 2 For more information www.analog.com 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 Applications Related Parts