Datasheet LTC3547B (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Dual Monolithic 300mA Synchronous Step-Down Regulator |
| Pages / Page | 16 / 2 — ABSOLUTE AXI U. RATI GS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| File Format / Size | PDF / 260 Kb |
| Document Language | English |
ABSOLUTE AXI U. RATI GS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*
Model Line for this Datasheet
Text Version of Document
LTC3547B
W W W U ABSOLUTE AXI U RATI GS PIN CONFIGURATION (Note 1)
V TOP VIEW IN LTC3547BE .. –0.3V to 6V V 1 8 FB1 VFB2 LTC3547BI ... –0.3V to 7V RUN1 2 7 RUN2 V 9 FB1, VFB2 ... –0.3V to VIN +0.3V VIN 3 6 SW2 RUN1, RUN2 ... –0.3V to VIN +0.3V SW1 4 5 GND SW1, SW2 (DC) .. –0.3V to VIN +0.3V P-Channel Switch Source Current (DC)..500mA DDB PACKAGE 8-LEAD (3mm × 2mm) PLASTIC DFN N-Channel Switch Sink Current (DC) ...500mA TJMAX = 125°C, θJA = 76°C/W Peak SW Sink and Source Current (Note 5) ...700mA EXPOSED PAD (PIN 9) IS GND MUST BE SOLDERED TO PCB Ambient Operating Temperature Range (Note 2) LTC3547BE .. –40°C to 85°C LTC3547BI ... –40°C to 125°C Maximum Junction Temperature... 125°C Storage Temperature Range ... –65°C to 125°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3547BEDDB#PBF LTC3547BEDDB#TRPBF LCPD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C LTC3547BEDDB-1#PBF LTC3547BEDDB-1#TRPBF LCPF 8-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C LTC3547BIDDB #PBF LTC3547BIDDB #TRPBF LCPD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *Temperature grades are 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/
The ELECTRICAL CHARACTERISTICS
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.6V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN VIN Operating Voltage LTC3547BE, LTC3547BE-1, ● 2.5 5.5 V LTC3547BI ● 2.5 6.5 V VUV VIN Undervoltage Lockout VIN Low to High ● 2.2 2.5 V IFB Feedback Pin Input Current LTC3547BE, VFB = VFBREG ● ±30 nA LTC3547BE-1, VFB = VFBREG ● 3 6 μA VFBREG1 Regulated Feedback Voltage (VFB1) LTC3547BE, 0°C ≤ TA ≤ 85°C 0.590 0.600 0.610 V LTC3547BE, –40°C ≤ TA ≤ 85°C ● 0.588 0.600 0.612 V LTC3547BI, –40°C ≤ T ● A ≤ 125°C 0.588 0.600 0.612 V LTC3547BE-1, 0°C ≤ TA ≤ 85°C 1.770 1.800 1.830 V LTC3547BE-1, –40°C ≤ T ● A ≤ 85°C 1.764 1.800 1.836 V VFBREG2 Regulated Feedback Voltage (VFB2) LTC3547BE, 0°C ≤ TA ≤ 85°C 0.590 0.600 0.610 V LTC3547BE, –40°C ≤ TA ≤ 85°C ● 0.588 0.600 0.612 V LTC3547BI, –40°C ≤ T ● A ≤ 125°C 0.588 0.600 0.612 V LTC3547BE-1, 0°C ≤ TA ≤ 85°C 1.180 1.200 1.220 V LTC3547BE-1, –40°C ≤ T ● A ≤ 85°C 1.176 1.200 1.224 V 3547bfb 2
W W W U ABSOLUTE AXI U RATI GS PIN CONFIGURATION (Note 1)
V TOP VIEW IN LTC3547BE .. –0.3V to 6V V 1 8 FB1 VFB2 LTC3547BI ... –0.3V to 7V RUN1 2 7 RUN2 V 9 FB1, VFB2 ... –0.3V to VIN +0.3V VIN 3 6 SW2 RUN1, RUN2 ... –0.3V to VIN +0.3V SW1 4 5 GND SW1, SW2 (DC) .. –0.3V to VIN +0.3V P-Channel Switch Source Current (DC)..500mA DDB PACKAGE 8-LEAD (3mm × 2mm) PLASTIC DFN N-Channel Switch Sink Current (DC) ...500mA TJMAX = 125°C, θJA = 76°C/W Peak SW Sink and Source Current (Note 5) ...700mA EXPOSED PAD (PIN 9) IS GND MUST BE SOLDERED TO PCB Ambient Operating Temperature Range (Note 2) LTC3547BE .. –40°C to 85°C LTC3547BI ... –40°C to 125°C Maximum Junction Temperature... 125°C Storage Temperature Range ... –65°C to 125°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3547BEDDB#PBF LTC3547BEDDB#TRPBF LCPD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C LTC3547BEDDB-1#PBF LTC3547BEDDB-1#TRPBF LCPF 8-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C LTC3547BIDDB #PBF LTC3547BIDDB #TRPBF LCPD 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *Temperature grades are 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/
The ELECTRICAL CHARACTERISTICS
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.6V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN VIN Operating Voltage LTC3547BE, LTC3547BE-1, ● 2.5 5.5 V LTC3547BI ● 2.5 6.5 V VUV VIN Undervoltage Lockout VIN Low to High ● 2.2 2.5 V IFB Feedback Pin Input Current LTC3547BE, VFB = VFBREG ● ±30 nA LTC3547BE-1, VFB = VFBREG ● 3 6 μA VFBREG1 Regulated Feedback Voltage (VFB1) LTC3547BE, 0°C ≤ TA ≤ 85°C 0.590 0.600 0.610 V LTC3547BE, –40°C ≤ TA ≤ 85°C ● 0.588 0.600 0.612 V LTC3547BI, –40°C ≤ T ● A ≤ 125°C 0.588 0.600 0.612 V LTC3547BE-1, 0°C ≤ TA ≤ 85°C 1.770 1.800 1.830 V LTC3547BE-1, –40°C ≤ T ● A ≤ 85°C 1.764 1.800 1.836 V VFBREG2 Regulated Feedback Voltage (VFB2) LTC3547BE, 0°C ≤ TA ≤ 85°C 0.590 0.600 0.610 V LTC3547BE, –40°C ≤ TA ≤ 85°C ● 0.588 0.600 0.612 V LTC3547BI, –40°C ≤ T ● A ≤ 125°C 0.588 0.600 0.612 V LTC3547BE-1, 0°C ≤ TA ≤ 85°C 1.180 1.200 1.220 V LTC3547BE-1, –40°C ≤ T ● A ≤ 85°C 1.176 1.200 1.224 V 3547bfb 2
