Datasheet LTC3371 (Analog Devices) - 3
| Fabricante | Analog Devices |
| Descripción | 4-Channel 8A Configurable Buck DC/DCs with Watchdog and Power-On Reset |
| Páginas / Página | 26 / 3 — ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION … |
| Formato / tamaño de archivo | PDF / 1.1 Mb |
| Idioma del documento | Inglés |
ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION http://www.linear.com/product/LTC3371#orderinfo
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LTC3371
ABSOLUTE MAXIMUM RATINGS (Note 1)
VINA-H, FB1-4, EN1-4, VCC, CT, WDI, WDO, RST1-4, Operating Junction Temperature Range RT, PLL/MODE, C1-3 ... –0.3V to 6V (Notes 2, 3) .. –40°C to 150°C TEMP .. –0.3V to Lesser of (VCC + 0.3V) or 6V Storage Temperature Range .. –65°C to 150°C IRST1-4, IWDO ...5mA
PIN CONFIGURATION
TOP VIEW TOP VIEW V 1 38 CC PLL/MODE TEMP 2 37 RT RST1 3 36 RST4 EN1 RST1 TEMP V CC PLL/MODE RT RST4 EN1 4 35 EN4 38 37 36 35 34 33 32 FB1 5 34 FB4 FB1 1 31 EN4 V 6 33 V V INA INH INA 2 30 FB4 SWA 3 29 V SWA 7 32 SWH INH SWB 4 28 SWH SWB 8 31 SWG V V 9 30 V INB 5 27 SWG INB ING 39 VINC 6 39 26 VING V 10 29 INC VINF GND GND SWC 7 25 VINF SWC 11 28 SWF SWD 8 24 SWF SWD 12 27 SWE VIND 9 23 SWE V 13 26 IND VINE FB2 10 22 VINE FB2 14 25 FB3 EN2 11 21 FB3 EN2 15 24 EN3 RST2 12 20 EN3 RST2 16 23 RST3 13 14 15 16 17 18 19 C1 17 22 CT C1 C2 C3 CT WDI WDO C2 18 WDO RST3 21 UHF PACKAGE C3 19 20 WDI 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 150°C, θJA = 34°C/W FE PACKAGE EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB 38-LEAD PLASTIC TSSOP TJMAX = 150°C, θJA = 25°C/W EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION http://www.linear.com/product/LTC3371#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3371EUHF#PBF LTC3371EUHF#TRPBF 3371 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3371IUHF#PBF LTC3371IUHF#TRPBF 3371 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3371HUHF#PBF LTC3371HUHF#TRPBF 3371 38-Lead (5mm × 7mm) Plastic QFN –40°C to 150°C LTC3371EFE#PBF LTC3371EFE#TRPBF LTC3371FE 38-Lead Plastic TSSOP –40°C to 125°C LTC3371IFE#PBF LTC3371IFE#TRPBF LTC3371FE 38-Lead Plastic TSSOP –40°C to 125°C LTC3371HFE#PBF LTC3371HFE#TRPBF LTC3371FE 38-Lead Plastic TSSOP –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 nonstandard 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 3371fb For more information www.linear.com/LTC3371 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Buck Switching Regulators Buck Regulators with Combined Power Stages Power Failure Reporting Via RST Pins Temperature Monitoring and Overtemperature Protection Programming the Operating Frequency Windowed Watchdog Timer Choosing the CT Capacitor Applications Information Buck Switching Regulator Output Voltage and Feedback Network Buck Regulators Combined Buck Power Stages Input and Output Decoupling Capacitor Selection PCB Considerations Typical Applications Package Description Revision History Typical Application Related Parts
ABSOLUTE MAXIMUM RATINGS (Note 1)
VINA-H, FB1-4, EN1-4, VCC, CT, WDI, WDO, RST1-4, Operating Junction Temperature Range RT, PLL/MODE, C1-3 ... –0.3V to 6V (Notes 2, 3) .. –40°C to 150°C TEMP .. –0.3V to Lesser of (VCC + 0.3V) or 6V Storage Temperature Range .. –65°C to 150°C IRST1-4, IWDO ...5mA
PIN CONFIGURATION
TOP VIEW TOP VIEW V 1 38 CC PLL/MODE TEMP 2 37 RT RST1 3 36 RST4 EN1 RST1 TEMP V CC PLL/MODE RT RST4 EN1 4 35 EN4 38 37 36 35 34 33 32 FB1 5 34 FB4 FB1 1 31 EN4 V 6 33 V V INA INH INA 2 30 FB4 SWA 3 29 V SWA 7 32 SWH INH SWB 4 28 SWH SWB 8 31 SWG V V 9 30 V INB 5 27 SWG INB ING 39 VINC 6 39 26 VING V 10 29 INC VINF GND GND SWC 7 25 VINF SWC 11 28 SWF SWD 8 24 SWF SWD 12 27 SWE VIND 9 23 SWE V 13 26 IND VINE FB2 10 22 VINE FB2 14 25 FB3 EN2 11 21 FB3 EN2 15 24 EN3 RST2 12 20 EN3 RST2 16 23 RST3 13 14 15 16 17 18 19 C1 17 22 CT C1 C2 C3 CT WDI WDO C2 18 WDO RST3 21 UHF PACKAGE C3 19 20 WDI 38-LEAD (5mm × 7mm) PLASTIC QFN TJMAX = 150°C, θJA = 34°C/W FE PACKAGE EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB 38-LEAD PLASTIC TSSOP TJMAX = 150°C, θJA = 25°C/W EXPOSED PAD (PIN 39) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION http://www.linear.com/product/LTC3371#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3371EUHF#PBF LTC3371EUHF#TRPBF 3371 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3371IUHF#PBF LTC3371IUHF#TRPBF 3371 38-Lead (5mm × 7mm) Plastic QFN –40°C to 125°C LTC3371HUHF#PBF LTC3371HUHF#TRPBF 3371 38-Lead (5mm × 7mm) Plastic QFN –40°C to 150°C LTC3371EFE#PBF LTC3371EFE#TRPBF LTC3371FE 38-Lead Plastic TSSOP –40°C to 125°C LTC3371IFE#PBF LTC3371IFE#TRPBF LTC3371FE 38-Lead Plastic TSSOP –40°C to 125°C LTC3371HFE#PBF LTC3371HFE#TRPBF LTC3371FE 38-Lead Plastic TSSOP –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 nonstandard 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 3371fb For more information www.linear.com/LTC3371 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Buck Switching Regulators Buck Regulators with Combined Power Stages Power Failure Reporting Via RST Pins Temperature Monitoring and Overtemperature Protection Programming the Operating Frequency Windowed Watchdog Timer Choosing the CT Capacitor Applications Information Buck Switching Regulator Output Voltage and Feedback Network Buck Regulators Combined Buck Power Stages Input and Output Decoupling Capacitor Selection PCB Considerations Typical Applications Package Description Revision History Typical Application Related Parts