Datasheet LT8641 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | 65V, 3.5A Synchronous Step-Down Silent Switcher with 2.5μA Quiescent Current |
| Pages / Page | 26 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). NOT. ORDER … |
| Revision | C |
| File Format / Size | PDF / 3.4 Mb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). NOT. ORDER INFORMATION LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
Model Line for this Datasheet
Text Version of Document
LT8641
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN, EN/UV ..65V TOP VIEW PG ...42V BIAS ..25V FB PG GND SYNC/MODE FB, TR/SS . ...4V 20 19 18 17 SYNC/MODE Voltage . ..6V BIAS 1 16 TR/SS Operating Junction Temperature Range (Note 2) INTVCC 2 15 RT BST 3 14 EN/UV LT8641E ... –40°C to 125°C 22 VIN1 4 13 V SW IN2 LT8641I .. –40°C to 125°C 21 LT8641J ... –40°C to 150°C GND1 6 SW 11 GND2 LT8641H .. –40°C to 150°C 7 8 9 10 Storage Temperature Range .. –65°C to 150°C 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 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
AUTOMOTIVE PRODUCTS**
LT8641IUDC#WPBF LT8641IUDC#WTRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C LT8641JUDC#WPBF LT8641JUDC#WTRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C LT8641HUDC#WPBF LT8641HUDC#WTRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**
Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for these models.
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 Rev. C 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
VIN, EN/UV ..65V TOP VIEW PG ...42V BIAS ..25V FB PG GND SYNC/MODE FB, TR/SS . ...4V 20 19 18 17 SYNC/MODE Voltage . ..6V BIAS 1 16 TR/SS Operating Junction Temperature Range (Note 2) INTVCC 2 15 RT BST 3 14 EN/UV LT8641E ... –40°C to 125°C 22 VIN1 4 13 V SW IN2 LT8641I .. –40°C to 125°C 21 LT8641J ... –40°C to 150°C GND1 6 SW 11 GND2 LT8641H .. –40°C to 150°C 7 8 9 10 Storage Temperature Range .. –65°C to 150°C 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 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
AUTOMOTIVE PRODUCTS**
LT8641IUDC#WPBF LT8641IUDC#WTRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C LT8641JUDC#WPBF LT8641JUDC#WTRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C LT8641HUDC#WPBF LT8641HUDC#WTRPBF LGSN 18-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**
Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for these models.
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 Rev. C 2 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts
