Datasheet LTC3770 (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | Fast No RSENSE Step-Down Synchronous Controller with Margining, Tracking and PLL |
| Páginas / Página | 24 / 2 — ABSOLUTE MAXIMUM RATINGS. (Note 1). PIN CONFIGURATION. ORDER INFORMATION. … |
| Formato / tamaño de archivo | PDF / 273 Kb |
| Idioma del documento | Inglés |
ABSOLUTE MAXIMUM RATINGS. (Note 1). PIN CONFIGURATION. ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING
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LTC3770
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN, VINSNS) ..32V to –0.3V INTVCC, ZVIN Voltages ..7V to –0.3V Boosted Topside Driver Supply Voltage TG, BG, INTVCC Peak Currents ..4A BOOST ... 38V to –0.3V TG, BG, INTVCC RMS Currents ...50mA SENSE+, SW Voltage ... 32V to –5V Operating Ambient Temperature DRVCC, (BOOST – SW) Voltages ..7V to –0.3V Range (Note 4) ...–40°C to 85°C VON, VRNG, PGOOD Voltages ...INTVCC + 0.3V to –0.3V Junction Temperature (Note 2) ... 125°C PLLFLTR, ITH, VFB, VREFIN Voltages ..2.7V to –0.3V Storage Temperature Range ...–65°C to 125°C TRACK/SS, FCB, Z0, Z1, Z2, RUN, PLLIN, MARGIN0, QFN Refl ow Peak Body Temperature ... 245°C MARGIN1 Voltages ..INTVCC + 0.3V to –0.3V Lead Temperature (Soldering, 10 sec) .. 300°C
PIN CONFIGURATION
TOP VIEW TOP VIEW RUN 1 28 FCB V 2 27 ON Z0 ON PGOOD V RUN FCB Z0 BOOST TG SW PGOOD 3 26 BOOST 32 31 30 29 28 27 26 25 V 4 25 RNG TG V 1 24 RNG SENSE+ V 5 24 V 2 23 SENSE– FB SW FB I 6 23 ITH 3 22 PGND TH PGND SGND BG SGND 7 22 BG 4 21 33 MARGIN1 5 20 DRV MARGIN1 8 21 INTV CC CC MARGIN0 6 19 INTV MARGIN0 9 20 Z2 CC I 7 18 ON Z2 I 10 19 ON Z1 V 8 17 REFIN Z1 V 11 18 REFIN ZVIN 9 10 11 12 13 14 15 16 V 12 17 REFOUT VIN TR IN IN V MPGM 13 16 PLLIN ZV INSNS REFOUT MPGM PLLIN V TRACK/SS 14 15 PLLFLTR V PLLFL TRACK/SS UH PACKAGE G PACKAGE 32-LEAD (5mm s 5mm) PLASTIC QFN 28-LEAD PLASTIC SSOP T TJMAX = 125°C, θJA = 34°C/W JMAX = 125°C, θJA = 130°C/W EXPOSED PAD IS SGND (PIN 33) MUST BE SOLDERED TO THE PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3770EG#PBF LTC3770EG#TRPBF LTC3770EG 28-Lead Plastic SSOP –40°C to 85°C LTC3770EUH#PBF LTC3770EUH#TRPBF 3770 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. 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/ 3770fc 2
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN, VINSNS) ..32V to –0.3V INTVCC, ZVIN Voltages ..7V to –0.3V Boosted Topside Driver Supply Voltage TG, BG, INTVCC Peak Currents ..4A BOOST ... 38V to –0.3V TG, BG, INTVCC RMS Currents ...50mA SENSE+, SW Voltage ... 32V to –5V Operating Ambient Temperature DRVCC, (BOOST – SW) Voltages ..7V to –0.3V Range (Note 4) ...–40°C to 85°C VON, VRNG, PGOOD Voltages ...INTVCC + 0.3V to –0.3V Junction Temperature (Note 2) ... 125°C PLLFLTR, ITH, VFB, VREFIN Voltages ..2.7V to –0.3V Storage Temperature Range ...–65°C to 125°C TRACK/SS, FCB, Z0, Z1, Z2, RUN, PLLIN, MARGIN0, QFN Refl ow Peak Body Temperature ... 245°C MARGIN1 Voltages ..INTVCC + 0.3V to –0.3V Lead Temperature (Soldering, 10 sec) .. 300°C
PIN CONFIGURATION
TOP VIEW TOP VIEW RUN 1 28 FCB V 2 27 ON Z0 ON PGOOD V RUN FCB Z0 BOOST TG SW PGOOD 3 26 BOOST 32 31 30 29 28 27 26 25 V 4 25 RNG TG V 1 24 RNG SENSE+ V 5 24 V 2 23 SENSE– FB SW FB I 6 23 ITH 3 22 PGND TH PGND SGND BG SGND 7 22 BG 4 21 33 MARGIN1 5 20 DRV MARGIN1 8 21 INTV CC CC MARGIN0 6 19 INTV MARGIN0 9 20 Z2 CC I 7 18 ON Z2 I 10 19 ON Z1 V 8 17 REFIN Z1 V 11 18 REFIN ZVIN 9 10 11 12 13 14 15 16 V 12 17 REFOUT VIN TR IN IN V MPGM 13 16 PLLIN ZV INSNS REFOUT MPGM PLLIN V TRACK/SS 14 15 PLLFLTR V PLLFL TRACK/SS UH PACKAGE G PACKAGE 32-LEAD (5mm s 5mm) PLASTIC QFN 28-LEAD PLASTIC SSOP T TJMAX = 125°C, θJA = 34°C/W JMAX = 125°C, θJA = 130°C/W EXPOSED PAD IS SGND (PIN 33) MUST BE SOLDERED TO THE PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3770EG#PBF LTC3770EG#TRPBF LTC3770EG 28-Lead Plastic SSOP –40°C to 85°C LTC3770EUH#PBF LTC3770EUH#TRPBF 3770 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. 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/ 3770fc 2