Datasheet LTC3729 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | 550kHz, PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator |
| Pages / Page | 30 / 2 — ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION … |
| File Format / Size | PDF / 356 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION LEAD FREE FINISH. TAPE AND REEL. PART MARKING
Model Line for this Datasheet
Text Version of Document
LTC3729
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) ... 36V to –0.3V VDIFFOUT Voltages ...VIN – 2V to –0.3V for VIN < 7V Topside Driver Voltages (BOOST1,2) ... 42V to –0.3V ITH Voltage ... 2.7V to –0.3V Switch Voltage (SW1, 2) .. 36V to –5 V Peak Output Current <1µs(TGL1,2, BG1,2) ...5A SENSE1+, SENSE2+, SENSE1–, INTVCC RMS Output Current ... 50mA SENSE2– Voltages ...(1.1)INTVCC to –0.3V Operating Ambient Temperature EAIN, V + – OS , VOS , EXTVCC, INTVCC, Range (Note 6) ... –40°C to 85°C RUN/SS, PGOOD Voltages .. 7V to –0.3V Junction Temperature (Note 2) ... 125°C Boosted Driver Voltage (BOOST‑SW) ... 7V to –0.3V Storage Temperature Range ... –65°C to 150°C PLLFLTR, PLLIN, CLKOUT, PHASMD, Lead Temperature (Soldering, 10 sec) VDIFFOUT Voltages ..INTVCC to –0.3V for VIN ≥ 7V (G Package Only) .. 300°C
PIN CONFIGURATION
TOP VIEW TOP VIEW – + RUN/SS 1 28 CLKOUT SENSE1+ 2 27 TG1 NC SENSE1 SENSE1 NC RUN/SS CLKOUT TG1 SW1 SENSE1– 3 26 SW1 32 31 30 29 28 27 26 25 EAIN 4 25 BOOST1 EAIN 1 24 BOOST1 PLLFLTR 5 24 V PLLFLTR 2 23 V IN IN PLLIN 6 23 BG1 PLLIN 3 22 BG1 PHASMD 7 22 EXTV PHASMD 4 21 EXTVCC CC ITH 5 20 INTV I 8 21 CC TH INTVCC SGND 6 19 PGND SGND 9 20 PGND VDIFFOUT 7 18 BG2 V 10 19 DIFFOUT BG2 V – OS 8 17 BOOST2 V 11 18 OS– BOOST2 9 10 11 12 13 14 15 16 V 12 17 OS+ SW2 + – + NC NC SENSE2– 13 16 TG2 V OS TG2 SW2 PGOOD SENSE2+ 14 15 PGOOD SENSE2 SENSE2 UH PACKAGE G PACKAGE 32-LEAD 5mm × 5mm PLASTIC QFN 28-LEAD PLASTIC SSOP θJA = 34°C/W TJMAX = 125°C, θJA = 95°C/W EXPOSED PAD IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3729EG#PBF LTC3729EG#TRPBF LTC3729 28‑Lead Plastic SSOP –40°C to 85°C LTC3729EUH#PBF LTC3729EUH#TRPBF 3729 32‑Lead (5mm × 5mm)Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ 3729fb 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 (Note 1)
Input Supply Voltage (VIN) ... 36V to –0.3V VDIFFOUT Voltages ...VIN – 2V to –0.3V for VIN < 7V Topside Driver Voltages (BOOST1,2) ... 42V to –0.3V ITH Voltage ... 2.7V to –0.3V Switch Voltage (SW1, 2) .. 36V to –5 V Peak Output Current <1µs(TGL1,2, BG1,2) ...5A SENSE1+, SENSE2+, SENSE1–, INTVCC RMS Output Current ... 50mA SENSE2– Voltages ...(1.1)INTVCC to –0.3V Operating Ambient Temperature EAIN, V + – OS , VOS , EXTVCC, INTVCC, Range (Note 6) ... –40°C to 85°C RUN/SS, PGOOD Voltages .. 7V to –0.3V Junction Temperature (Note 2) ... 125°C Boosted Driver Voltage (BOOST‑SW) ... 7V to –0.3V Storage Temperature Range ... –65°C to 150°C PLLFLTR, PLLIN, CLKOUT, PHASMD, Lead Temperature (Soldering, 10 sec) VDIFFOUT Voltages ..INTVCC to –0.3V for VIN ≥ 7V (G Package Only) .. 300°C
PIN CONFIGURATION
TOP VIEW TOP VIEW – + RUN/SS 1 28 CLKOUT SENSE1+ 2 27 TG1 NC SENSE1 SENSE1 NC RUN/SS CLKOUT TG1 SW1 SENSE1– 3 26 SW1 32 31 30 29 28 27 26 25 EAIN 4 25 BOOST1 EAIN 1 24 BOOST1 PLLFLTR 5 24 V PLLFLTR 2 23 V IN IN PLLIN 6 23 BG1 PLLIN 3 22 BG1 PHASMD 7 22 EXTV PHASMD 4 21 EXTVCC CC ITH 5 20 INTV I 8 21 CC TH INTVCC SGND 6 19 PGND SGND 9 20 PGND VDIFFOUT 7 18 BG2 V 10 19 DIFFOUT BG2 V – OS 8 17 BOOST2 V 11 18 OS– BOOST2 9 10 11 12 13 14 15 16 V 12 17 OS+ SW2 + – + NC NC SENSE2– 13 16 TG2 V OS TG2 SW2 PGOOD SENSE2+ 14 15 PGOOD SENSE2 SENSE2 UH PACKAGE G PACKAGE 32-LEAD 5mm × 5mm PLASTIC QFN 28-LEAD PLASTIC SSOP θJA = 34°C/W TJMAX = 125°C, θJA = 95°C/W EXPOSED PAD IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3729EG#PBF LTC3729EG#TRPBF LTC3729 28‑Lead Plastic SSOP –40°C to 85°C LTC3729EUH#PBF LTC3729EUH#TRPBF 3729 32‑Lead (5mm × 5mm)Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ 3729fb 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
