Datasheet LTC3857-1 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Low IQ, Dual, 2-Phase Synchronous Step-Down Controller |
| 页数 / 页 | 38 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| 文件格式/大小 | PDF / 434 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
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LTC3857-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (VIN) ... –0.3V to 40V TOP VIEW Topside Driver Voltages I 1 28 TH1 TRACK/SS1 BOOST1, BOOST2 ... –0.3V to 46V V 2 27 FB1 PGOOD1 Switch Voltage (SW1, SW2) .. –5V to 40V SENSE1+ 3 26 TG1 (BOOST1-SW1), (BOOST2-SW2), INTV SENSE1– 4 25 SW1 CC ... –0.3V to 6V RUN1, RUN2 .. –0.3V to 8V FREQ 5 24 BOOST1 Maximum Current Sourced into Pin PLLIN/MODE 6 23 BG1 from Source >8V...100μA SGND 7 22 VIN RUN1 8 21 PGND SENSE1+, SENSE2+, SENSE1– RUN2 9 20 EXTV SENSE2– Voltages .. –0.3V to 28V CC SENSE2– 10 19 INTVCC PLLIN/MODE, FREQ Voltages .. –0.3V to INTVCC SENSE2+ 11 18 BG2 EXTVCC .. –0.3V to 14V V 12 17 FB2 BOOST2 ITH1, ITH2,VFB1, VFB2 Voltages .. –0.3V to 6V I 13 16 TH2 SW2 PGOOD1 Voltage ... –0.3V to 6V TRACK/SS2 14 15 TG2 TRACK/SS1, TRACK/SS2 Voltages .. –0.3V to 6V GN PACKAGE Operating Junction Temperature Range 28-LEAD PLASTIC SSOP (Note 2) .. –40°C to 125°C TJMAX = 125°C, θJA = 90°C/W Maximum Junction Temperature (Note 3) .. 125°C Storage Temperature Range ... –65°C to 150°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3857EGN-1#PBF LTC3857EGN-1#TRPBF LTC3857GN-1 28-Lead Plastic SSOP –40°C to 125°C LTC3857IGN-1#PBF LTC3857IGN-1#TRPBF LTC3857GN-1 28-Lead Plastic SSOP –40°C to 125°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/ 38571fc 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage (VIN) ... –0.3V to 40V TOP VIEW Topside Driver Voltages I 1 28 TH1 TRACK/SS1 BOOST1, BOOST2 ... –0.3V to 46V V 2 27 FB1 PGOOD1 Switch Voltage (SW1, SW2) .. –5V to 40V SENSE1+ 3 26 TG1 (BOOST1-SW1), (BOOST2-SW2), INTV SENSE1– 4 25 SW1 CC ... –0.3V to 6V RUN1, RUN2 .. –0.3V to 8V FREQ 5 24 BOOST1 Maximum Current Sourced into Pin PLLIN/MODE 6 23 BG1 from Source >8V...100μA SGND 7 22 VIN RUN1 8 21 PGND SENSE1+, SENSE2+, SENSE1– RUN2 9 20 EXTV SENSE2– Voltages .. –0.3V to 28V CC SENSE2– 10 19 INTVCC PLLIN/MODE, FREQ Voltages .. –0.3V to INTVCC SENSE2+ 11 18 BG2 EXTVCC .. –0.3V to 14V V 12 17 FB2 BOOST2 ITH1, ITH2,VFB1, VFB2 Voltages .. –0.3V to 6V I 13 16 TH2 SW2 PGOOD1 Voltage ... –0.3V to 6V TRACK/SS2 14 15 TG2 TRACK/SS1, TRACK/SS2 Voltages .. –0.3V to 6V GN PACKAGE Operating Junction Temperature Range 28-LEAD PLASTIC SSOP (Note 2) .. –40°C to 125°C TJMAX = 125°C, θJA = 90°C/W Maximum Junction Temperature (Note 3) .. 125°C Storage Temperature Range ... –65°C to 150°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3857EGN-1#PBF LTC3857EGN-1#TRPBF LTC3857GN-1 28-Lead Plastic SSOP –40°C to 125°C LTC3857IGN-1#PBF LTC3857IGN-1#TRPBF LTC3857GN-1 28-Lead Plastic SSOP –40°C to 125°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/ 38571fc 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS FUNCTIONAL DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS