Datasheet LTC3858-1 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | Low IQ, Dual 2-Phase Synchronous Step-Down Controller |
| Seiten / Seite | 38 / 2 — ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION. … |
| Dateiformat / Größe | PDF / 439 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
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LTC3858-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... –0.3V to 40V EXTVCC .. –0.3V to 14V Topside Driver Voltages ITH1, ITH2,VFB1, VFB2 Voltages .. –0.3V to 6V BOOST1, BOOST2 ... –0.3V to 46V PGOOD1 Voltage ... –0.3V to 6V Switch Voltage (SW1, SW2) .. –5V to 40V SS1, SS2, INTVCC Voltages ... –0.3V to 6V (BOOST1-SW1), (BOOST2-SW2) .. –0.3V to 6V Operating Junction Temperature Range RUN1, RUN2 ... –0.3V to 8V (Note 2) .. –40°C to 125°C Maximum Current Sourced Into Pin Maximum Junction Temperature (Note 3) .. 125°C from Source >8V...100μA Storage Temperature Range ... –65°C to 150°C SENSE1+, SENSE2+, SENSE1– Lead Temperature (Soldering, 10 sec) SENSE2– Voltages .. –0.3V to 28V SSOP .. 300°C PLLIN/MODE, FREQ Voltages .. –0.3V to INTVCC
PIN CONFIGURATION
TOP VIEW TOP VIEW I 1 28 TH1 SS1 FB1 V 2 27 PGOOD1 V I TH1 SS1 PGOOD1 TG1 SW1 FB1 28 27 26 25 24 23 SENSE1+ 3 26 TG1 SENSE1+ 1 22 BOOST1 SENSE1– 4 25 SW1 SENSE1– 2 21 BG1 FREQ 5 24 BOOST1 FREQ 3 20 VIN PLLIN/MODE 6 23 BG1 PLLIN/MODE 4 29 19 PGND SGND 7 22 VIN SGND SGND 5 18 EXTVCC RUN1 8 21 PGND RUN1 6 17 INTVCC RUN2 9 20 EXTVCC RUN2 7 16 BG2 SENSE2– 10 19 INTVCC SENSE2– 8 15 BOOST2 SENSE2+ 11 18 BG2 9 10 11 12 13 14 + V 12 17 FB2 BOOST2 FB2V I TH2 SS2 TG2 SW2 I 13 16 TH2 SW2 SENSE2 SS2 14 15 TG2 UFD PACKAGE 28-LEAD (4mm s 5mm) PLASTIC QFN GN PACKAGE TJMAX = 125°C, θJA = 43°C/W 28-LEAD PLASTIC SSOP EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB TJMAX = 125°C, θJA = 90°C/W
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3858EUFD-1#PBF LTC3858EUFD-1#TRPBF 38581 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LTC3858IUFD-1#PBF LTC3858IUFD-1#TRPBF 38581 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LTC3858EGN-1#PBF LTC3858EGN-1#TRPBF LTC3858GN-1 28-Lead Plastic SSOP –40°C to 125°C LTC3858IGN-1#PBF LTC3858IGN-1#TRPBF LTC3858GN-1 28-Lead Plastic SSOP –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/ 38581fd 2
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... –0.3V to 40V EXTVCC .. –0.3V to 14V Topside Driver Voltages ITH1, ITH2,VFB1, VFB2 Voltages .. –0.3V to 6V BOOST1, BOOST2 ... –0.3V to 46V PGOOD1 Voltage ... –0.3V to 6V Switch Voltage (SW1, SW2) .. –5V to 40V SS1, SS2, INTVCC Voltages ... –0.3V to 6V (BOOST1-SW1), (BOOST2-SW2) .. –0.3V to 6V Operating Junction Temperature Range RUN1, RUN2 ... –0.3V to 8V (Note 2) .. –40°C to 125°C Maximum Current Sourced Into Pin Maximum Junction Temperature (Note 3) .. 125°C from Source >8V...100μA Storage Temperature Range ... –65°C to 150°C SENSE1+, SENSE2+, SENSE1– Lead Temperature (Soldering, 10 sec) SENSE2– Voltages .. –0.3V to 28V SSOP .. 300°C PLLIN/MODE, FREQ Voltages .. –0.3V to INTVCC
PIN CONFIGURATION
TOP VIEW TOP VIEW I 1 28 TH1 SS1 FB1 V 2 27 PGOOD1 V I TH1 SS1 PGOOD1 TG1 SW1 FB1 28 27 26 25 24 23 SENSE1+ 3 26 TG1 SENSE1+ 1 22 BOOST1 SENSE1– 4 25 SW1 SENSE1– 2 21 BG1 FREQ 5 24 BOOST1 FREQ 3 20 VIN PLLIN/MODE 6 23 BG1 PLLIN/MODE 4 29 19 PGND SGND 7 22 VIN SGND SGND 5 18 EXTVCC RUN1 8 21 PGND RUN1 6 17 INTVCC RUN2 9 20 EXTVCC RUN2 7 16 BG2 SENSE2– 10 19 INTVCC SENSE2– 8 15 BOOST2 SENSE2+ 11 18 BG2 9 10 11 12 13 14 + V 12 17 FB2 BOOST2 FB2V I TH2 SS2 TG2 SW2 I 13 16 TH2 SW2 SENSE2 SS2 14 15 TG2 UFD PACKAGE 28-LEAD (4mm s 5mm) PLASTIC QFN GN PACKAGE TJMAX = 125°C, θJA = 43°C/W 28-LEAD PLASTIC SSOP EXPOSED PAD (PIN 29) IS SGND, MUST BE SOLDERED TO PCB TJMAX = 125°C, θJA = 90°C/W
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3858EUFD-1#PBF LTC3858EUFD-1#TRPBF 38581 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LTC3858IUFD-1#PBF LTC3858IUFD-1#TRPBF 38581 28-Lead (4mm × 5mm) Plastic QFN –40°C to 125°C LTC3858EGN-1#PBF LTC3858EGN-1#TRPBF LTC3858GN-1 28-Lead Plastic SSOP –40°C to 125°C LTC3858IGN-1#PBF LTC3858IGN-1#TRPBF LTC3858GN-1 28-Lead Plastic SSOP –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/ 38581fd 2