Datasheet LT3470 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Micropower Buck Regulator with Integrated Boost and Catch Diodes |
| Pages / Page | 20 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. SHDN Bias Current. FB Bias Current … |
| Revision | E |
| File Format / Size | PDF / 483 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. SHDN Bias Current. FB Bias Current (VFB = 1V). FB Bias Current (VFB = 0V). vs Temperature
Model Line for this Datasheet
- LT3470EDDB#TRMPBF LT3470EDDB#TRPBF LT3470EDDB#WTRMPBF LT3470EDDB#WTRPBF LT3470ETS8#TRMPBF LT3470ETS8#TRPBF LT3470HDDB#TRMPBF LT3470HDDB#TRPBF LT3470HDDB#WTRMPBF LT3470HDDB#WTRPBF LT3470HTS8#TRMPBF LT3470HTS8#TRPBF LT3470IDDB#TRMPBF LT3470IDDB#TRPBF LT3470IDDB#WTRMPBF LT3470IDDB#WTRPBF LT3470ITS8#TRMPBF LT3470ITS8#TRPBF
Text Version of Document
LT3470
TYPICAL PERFORMANCE CHARACTERISTICS SHDN Bias Current FB Bias Current (VFB = 1V) FB Bias Current (VFB = 0V) vs Temperature vs Temperature vs Temperature
9 60 120 8 VSHDN = 36V 50 100 7 6 40 80 5 30 60 CURRENT (µA) 4 3 FB CURRENT (nA) 20 FB CURRENT (µA) 40 SHDN 2 VSHDN = 2.5V 10 20 1 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3470 G08 3470 G09 3470 G07
Switch VCESAT (ISW = 100mA) Boost Diode VF (IF = 50mA) Catch Diode VF (IF = 100mA) vs Temperature vs Temperature vs Temperature
300 0.8 0.7 0.7 0.6 250 0.6 0.5 200 (mV) (V) (V) F 0.5 F 0.4 CESAT 150 0.4 0.3 0.3 100 SCHOTTKY V SCHOTTKY V SWITCH V 0.2 0.2 50 0.1 0.1 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3470 G10 3470 G11 3470 G12
Diode Leakage (VR = 36V) vs Temperature Switch VCESAT BOOST Pin Current
60 700 14 55 CATCH BOOST 12 50 600 45 500 10 40 (mV) 35 400 8 30 CESAT 25 300 6 20 SWITCH V 200 4 15 BOOST PIN CURRENT (mA) SCHOTTKY DIODE LEAKAGE (µA) 10 100 2 5 0 0 0 –50 –25 0 25 50 75 100 125 150 0 100 200 300 400 0 100 200 300 400 TEMPERATURE (°C) SWITCH CURRENT (mA) SWITCH CURRENT (mA) 3470 G13 3470 G14 3470 G15 Rev. E For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS SHDN Bias Current FB Bias Current (VFB = 1V) FB Bias Current (VFB = 0V) vs Temperature vs Temperature vs Temperature
9 60 120 8 VSHDN = 36V 50 100 7 6 40 80 5 30 60 CURRENT (µA) 4 3 FB CURRENT (nA) 20 FB CURRENT (µA) 40 SHDN 2 VSHDN = 2.5V 10 20 1 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3470 G08 3470 G09 3470 G07
Switch VCESAT (ISW = 100mA) Boost Diode VF (IF = 50mA) Catch Diode VF (IF = 100mA) vs Temperature vs Temperature vs Temperature
300 0.8 0.7 0.7 0.6 250 0.6 0.5 200 (mV) (V) (V) F 0.5 F 0.4 CESAT 150 0.4 0.3 0.3 100 SCHOTTKY V SCHOTTKY V SWITCH V 0.2 0.2 50 0.1 0.1 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3470 G10 3470 G11 3470 G12
Diode Leakage (VR = 36V) vs Temperature Switch VCESAT BOOST Pin Current
60 700 14 55 CATCH BOOST 12 50 600 45 500 10 40 (mV) 35 400 8 30 CESAT 25 300 6 20 SWITCH V 200 4 15 BOOST PIN CURRENT (mA) SCHOTTKY DIODE LEAKAGE (µA) 10 100 2 5 0 0 0 –50 –25 0 25 50 75 100 125 150 0 100 200 300 400 0 100 200 300 400 TEMPERATURE (°C) SWITCH CURRENT (mA) SWITCH CURRENT (mA) 3470 G13 3470 G14 3470 G15 Rev. E For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Related Parts
