Datasheet LTC3620 (Analog Devices) - 2
| 制造商 | Analog Devices |
| 描述 | Ultralow Power 15mA Synchronous Step-Down Switching Regulator |
| 页数 / 页 | 18 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| 文件格式/大小 | PDF / 331 Kb |
| 文件语言 | 英语 |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING
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LTC3620
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage .. –0.3V to 6V RUN Voltage ... –0.3V to (VIN + 0.3V) TOP VIEW VFB Voltage ... –0.3V to (VIN + 0.3V) SW 1 8 VIN LOBATB Voltage ... –0.3V to 6V GND 2 7 RUN 9 FMIN/MODE Voltage ... –0.3V to (VIN + 0.3V) FMIN/MODE GND 3 6 VFB SW Voltage .. –0.3V to (VIN + 0.3V) LOBATB 4 5 NC P-channel Switch Source Current (DC) ..50mA DC PACKAGE N-channel Switch Sink Current (DC) ..50mA 8-LEAD (2mm × 2mm) PLASTIC DFN Operating Junction Temperature Range TJMAX = 125°C, θJA = 88.5°C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB (Note 2) .. –40°C to 125°C Storage Temperature Range ... –65°C to 150°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3620EDC#PBF LTC3620EDC#TRPBF LFJJ 8-Lead (2mm × 2mm) Plastic DFN –40°C to 85°C LTC3620EDC-1#PBF LTC3620EDC-1#TRPBF LFJK 8-Lead (2mm × 2mm) Plastic DFN –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/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating junction temperature range, otherwise specifi cations are for TA = 25°C (Note 2). VIN = 3.6V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Range l 2.9 5.5 V VFB Regulated Feedback Voltage (Note 3) LTC3620 0.594 0.6 0.606 V LTC3620 l 0.588 0.6 0.612 V LTC3620-1 1.089 1.1 1.111 V LTC3620-1 l 1.078 1.1 1.122 V ΔVFB Reference Voltage Line Regulation VIN = 3V to 5.5V (Note 3) 0.05 0.15 %/V VLOADREG Output Voltage Load Regulation (Note 3) 0.5 % IQ Quiescent Current, No Switching VFB = 0.65V, FMIN/MODE = VIN 18 25 μA IQSD Quiescent Current in Shutdown RUN = 0V 0.01 1 μA IQU Quiescent Current in UVLO Condition RUN = VIN, VIN = 2.5V 0.5 μA IPK Peak Inductor Current 35 mA fSW Minimum Switching Frequency (Internal) VFB = 0.65V, FIN/MODE = 0 l 40 50 kHz VRUN RUN Input Voltage High 0.8 V RUN Input Voltage Low 0.3 V IRUN RUN Leakage Current ±0.01 ±1 μA 3620fa 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATIONS RELATED PARTS
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
Input Supply Voltage .. –0.3V to 6V RUN Voltage ... –0.3V to (VIN + 0.3V) TOP VIEW VFB Voltage ... –0.3V to (VIN + 0.3V) SW 1 8 VIN LOBATB Voltage ... –0.3V to 6V GND 2 7 RUN 9 FMIN/MODE Voltage ... –0.3V to (VIN + 0.3V) FMIN/MODE GND 3 6 VFB SW Voltage .. –0.3V to (VIN + 0.3V) LOBATB 4 5 NC P-channel Switch Source Current (DC) ..50mA DC PACKAGE N-channel Switch Sink Current (DC) ..50mA 8-LEAD (2mm × 2mm) PLASTIC DFN Operating Junction Temperature Range TJMAX = 125°C, θJA = 88.5°C/W EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB (Note 2) .. –40°C to 125°C Storage Temperature Range ... –65°C to 150°C
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3620EDC#PBF LTC3620EDC#TRPBF LFJJ 8-Lead (2mm × 2mm) Plastic DFN –40°C to 85°C LTC3620EDC-1#PBF LTC3620EDC-1#TRPBF LFJK 8-Lead (2mm × 2mm) Plastic DFN –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/
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating junction temperature range, otherwise specifi cations are for TA = 25°C (Note 2). VIN = 3.6V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Range l 2.9 5.5 V VFB Regulated Feedback Voltage (Note 3) LTC3620 0.594 0.6 0.606 V LTC3620 l 0.588 0.6 0.612 V LTC3620-1 1.089 1.1 1.111 V LTC3620-1 l 1.078 1.1 1.122 V ΔVFB Reference Voltage Line Regulation VIN = 3V to 5.5V (Note 3) 0.05 0.15 %/V VLOADREG Output Voltage Load Regulation (Note 3) 0.5 % IQ Quiescent Current, No Switching VFB = 0.65V, FMIN/MODE = VIN 18 25 μA IQSD Quiescent Current in Shutdown RUN = 0V 0.01 1 μA IQU Quiescent Current in UVLO Condition RUN = VIN, VIN = 2.5V 0.5 μA IPK Peak Inductor Current 35 mA fSW Minimum Switching Frequency (Internal) VFB = 0.65V, FIN/MODE = 0 l 40 50 kHz VRUN RUN Input Voltage High 0.8 V RUN Input Voltage Low 0.3 V IRUN RUN Leakage Current ±0.01 ±1 μA 3620fa 2 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM OPERATION APPLICATIONS INFORMATION TYPICAL APPLICATIONS PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATIONS RELATED PARTS