Datasheet LTC1174, LTC1174-3.3, LTC1174-5 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | High Efficiency Step-Down and Inverting DC/DC Converter |
| Pages / Page | 20 / 4 — ELECTRICAL CHARACTERISTICS. Note 3:. Note 5:. Note 4:. Note 6:. TYPICAL … |
| File Format / Size | PDF / 263 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. Note 3:. Note 5:. Note 4:. Note 6:. TYPICAL PERFOR A CE CHARACTERISTICS. Efficiency vs Load Current
Model Line for this Datasheet
- LTC1174CN8#PBF LTC1174CN8-3.3#PBF LTC1174CN8-5#PBF LTC1174CS8#PBF LTC1174CS8#TRPBF LTC1174CS8-3.3#PBF LTC1174CS8-3.3#TRPBF LTC1174CS8-5#PBF LTC1174CS8-5#TRPBF LTC1174HVCN8#PBF LTC1174HVCN8-3.3#PBF LTC1174HVCN8-5#PBF LTC1174HVCS8#PBF LTC1174HVCS8#TRPBF LTC1174HVCS8-3.3#PBF LTC1174HVCS8-3.3#TRPBF LTC1174HVCS8-5#PBF LTC1174HVCS8-5#TRPBF LTC1174HVIS8#PBF LTC1174HVIS8#TRPBF LTC1174IN8#PBF LTC1174IS8#PBF LTC1174IS8#TRPBF
Text Version of Document
LTC1174 LTC1174-3.3/LTC1174-5
ELECTRICAL CHARACTERISTICS Note 3:
Guaranteed by design.
Note 5:
Current into Pin 6 only, measured without electrolytic input
Note 4:
Dynamic supply current is higher due to the gate charge being capacitor. delivered at the switching frequency.
Note 6:
The off-time is wafer-sort trimmed.
W U TYPICAL PERFOR A CE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current
100 100 100 95 95 95 VIN = 6V VIN = 6V VIN = 6V 90 90 90 VIN = 9V V V IN = 9V IN = 9V 85 85 85 EFFICIENCY (%) 80 EFFICIENCY (%) 80 EFFICIENCY (%) 80 L = 50µH V L = 50µH L = 100µH OUT = 5V 75 I VOUT = 5V VOUT = 5V PGM = 0V 75 75 COIL = CTX50-4 IPGM = VIN IPGM = VIN COIL = CTX50-4 COIL = CTX100-4 70 70 70 1 10 100 200 1 10 100 400 1 10 100 500 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 1174 G01 1174 G02 1174 G03
Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current
100 100 100 VIN = 5V V 90 VIN = 5V 90 IN = 5V 90 VIN = 9V V V IN = 9V IN = 9V 80 80 80 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) L = 50µH L = 50µH L = 100µH 60 V 60 60 OUT = 3.3V V V OUT = 3.3V OUT = 3.3V IPGM = 0V I I PGM = VIN PGM = VIN COIL = CTX50-4 COIL = CTX50-4 COIL = CTX100-4 50 50 50 1 10 100 300 1 10 100 500 1 10 100 500 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 1174 G04 1174 G05 1174 G06 1174fe 4
ELECTRICAL CHARACTERISTICS Note 3:
Guaranteed by design.
Note 5:
Current into Pin 6 only, measured without electrolytic input
Note 4:
Dynamic supply current is higher due to the gate charge being capacitor. delivered at the switching frequency.
Note 6:
The off-time is wafer-sort trimmed.
W U TYPICAL PERFOR A CE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current
100 100 100 95 95 95 VIN = 6V VIN = 6V VIN = 6V 90 90 90 VIN = 9V V V IN = 9V IN = 9V 85 85 85 EFFICIENCY (%) 80 EFFICIENCY (%) 80 EFFICIENCY (%) 80 L = 50µH V L = 50µH L = 100µH OUT = 5V 75 I VOUT = 5V VOUT = 5V PGM = 0V 75 75 COIL = CTX50-4 IPGM = VIN IPGM = VIN COIL = CTX50-4 COIL = CTX100-4 70 70 70 1 10 100 200 1 10 100 400 1 10 100 500 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 1174 G01 1174 G02 1174 G03
Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current
100 100 100 VIN = 5V V 90 VIN = 5V 90 IN = 5V 90 VIN = 9V V V IN = 9V IN = 9V 80 80 80 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) L = 50µH L = 50µH L = 100µH 60 V 60 60 OUT = 3.3V V V OUT = 3.3V OUT = 3.3V IPGM = 0V I I PGM = VIN PGM = VIN COIL = CTX50-4 COIL = CTX50-4 COIL = CTX100-4 50 50 50 1 10 100 300 1 10 100 500 1 10 100 500 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 1174 G04 1174 G05 1174 G06 1174fe 4
