Datasheet LTC3545, LTC3545-1 (Analog Devices) - 2
| Hersteller | Analog Devices |
| Beschreibung | Triple 800mA Synchronous Step-Down Regulator - 2.25MHz |
| Seiten / Seite | 20 / 2 — ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION. … |
| Dateiformat / Größe | PDF / 305 Kb |
| Dokumentensprache | Englisch |
ABSOLUTE MAXIMUM RATINGS (Note 1). PIN CONFIGURATION. ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC3545/LTC3545-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage .. –0.3V to 6V N-Channel Sink Current (DC) (Note 8) ...1.1A RUNx, PGOODx ... –0.3V to (VIN + 0.3V) Peak SW Sink and Source Current (Note 8) ...1.3A VFBx, SYNC/MODE .. –0.3V to (VIN + 0.3V) Operating Junction Temperature Range SWx .. –0.3V to (VIN + 0.3V) (Note 2) ... –40°C to 125°C P-Switch Source Current (DC) (Note 8) ...1.1A Storage Temperature Range ... –65°C to 125°C
PIN CONFIGURATION
LTC3545 LTC3545-1 TOP VIEW TOP VIEW IN FB1 IN FB1 GNDA V RUN1 V GNDA V RUN1 V 16 15 14 13 16 15 14 13 SW1 1 12 VFB2 SW1 1 12 VFB2 PGOOD1 2 11 VFB3 PGOOD1 2 11 VFB3 17 17 RUN2 3 10 RUN3 RUN2 3 10 RUN3 PGOOD2 4 9 SYNC/MODE PGOOD2 4 9 PGOOD3 5 6 7 8 5 6 7 8 IN IN SW2 PV SW3 PV PGND SW2 SW3 PGND UD PACKAGE UD PACKAGE 16-LEAD (3mm s 3mm) PLASTIC QFN 16-LEAD (3mm s 3mm) PLASTIC QFN TJMAX = 125°C, θJA = 55°C/W TJMAX = 125°C, θJA = 55°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3545EUD#PBF LTC3545EUD#TRPBF LCSR 16-Lead (3mm × 3mm) Plastic QFN –40°C to 125°C LTC3545IUD#PBF LTC3545IUD#TRPBF LCSR 16-Lead (3mm × 3mm) Plastic QFN –40°C to 125°C LTC3545EUD-1#PBF LTC3545EUD-1#TRPBF LDDP 16-Lead (3mm × 3mm) Plastic QFN –40°C to 125°C LTC3545IUD-1#PBF LTC3545IUD-1#TRPBF LDDP 16-Lead (3mm × 3mm) Plastic QFN –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/
ELECTRICAL CHARACTERISTICS The
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = PVIN = 3.6V unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS General Characteristics
VIN Input Voltage Range ● 2.25 5.5 V VFBx Regulated Feedback Voltage (Note 5) TA = 25°C 0.592 0.6 0.608 V 0°C ≤ TA ≤ 85°C ● 0.588 0.6 0.612 V LTC3545IUD; –40°C < TA < 125°C ● 0.588 0.6 0.612 V ΔVFBx Reference Voltage Line Regulation (Note 5) VIN = 2.25V to 5.5V ● 0.08 0.15 %/V 35451fb 2
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage .. –0.3V to 6V N-Channel Sink Current (DC) (Note 8) ...1.1A RUNx, PGOODx ... –0.3V to (VIN + 0.3V) Peak SW Sink and Source Current (Note 8) ...1.3A VFBx, SYNC/MODE .. –0.3V to (VIN + 0.3V) Operating Junction Temperature Range SWx .. –0.3V to (VIN + 0.3V) (Note 2) ... –40°C to 125°C P-Switch Source Current (DC) (Note 8) ...1.1A Storage Temperature Range ... –65°C to 125°C
PIN CONFIGURATION
LTC3545 LTC3545-1 TOP VIEW TOP VIEW IN FB1 IN FB1 GNDA V RUN1 V GNDA V RUN1 V 16 15 14 13 16 15 14 13 SW1 1 12 VFB2 SW1 1 12 VFB2 PGOOD1 2 11 VFB3 PGOOD1 2 11 VFB3 17 17 RUN2 3 10 RUN3 RUN2 3 10 RUN3 PGOOD2 4 9 SYNC/MODE PGOOD2 4 9 PGOOD3 5 6 7 8 5 6 7 8 IN IN SW2 PV SW3 PV PGND SW2 SW3 PGND UD PACKAGE UD PACKAGE 16-LEAD (3mm s 3mm) PLASTIC QFN 16-LEAD (3mm s 3mm) PLASTIC QFN TJMAX = 125°C, θJA = 55°C/W TJMAX = 125°C, θJA = 55°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3545EUD#PBF LTC3545EUD#TRPBF LCSR 16-Lead (3mm × 3mm) Plastic QFN –40°C to 125°C LTC3545IUD#PBF LTC3545IUD#TRPBF LCSR 16-Lead (3mm × 3mm) Plastic QFN –40°C to 125°C LTC3545EUD-1#PBF LTC3545EUD-1#TRPBF LDDP 16-Lead (3mm × 3mm) Plastic QFN –40°C to 125°C LTC3545IUD-1#PBF LTC3545IUD-1#TRPBF LDDP 16-Lead (3mm × 3mm) Plastic QFN –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/
ELECTRICAL CHARACTERISTICS The
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = PVIN = 3.6V unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS General Characteristics
VIN Input Voltage Range ● 2.25 5.5 V VFBx Regulated Feedback Voltage (Note 5) TA = 25°C 0.592 0.6 0.608 V 0°C ≤ TA ≤ 85°C ● 0.588 0.6 0.612 V LTC3545IUD; –40°C < TA < 125°C ● 0.588 0.6 0.612 V ΔVFBx Reference Voltage Line Regulation (Note 5) VIN = 2.25V to 5.5V ● 0.08 0.15 %/V 35451fb 2