Datasheet LT8611 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | 42V, 2.5A Synchronous Step-Down Regulator with Current Sense and 2.5μA Quiescent Current |
| Pages / Page | 26 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Transient Response. Start-Up Dropout … |
| File Format / Size | PDF / 343 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Transient Response. Start-Up Dropout Performance. ICTRL Voltage. VISP-VISN Sense Voltage
Model Line for this Datasheet
Text Version of Document
LT8611
TYPICAL PERFORMANCE CHARACTERISTICS Transient Response Start-Up Dropout Performance Start-Up Dropout Performance
IL 1A/DIV VIN VIN VIN VIN V 2V/DIV 2V/DIV OUT 200mV/DIV V V V OUT OUT OUT VOUT 2V/DIV 2V/DIV 50µs/DIV 8611 G37 100ms/DIV 8611 G38 100ms/DIV 8611 G39 50mA TO 1A TRANSIENT 2.5Ω LOAD 20Ω LOAD 12VIN, 5VOUT (2A IN REGULATION) (250mA IN REGULATION) COUT = 47µF
ICTRL Voltage VISP-VISN Sense Voltage VISP-VISN Sense Voltage
60 55 55 54 54 50 53 53 52 40 52 VISP = 0V 51 VOLTAGE (mV) 30 VOLTAGE (mV) 51 VOLTAGE (mV) 50 ISN ISN 50 ISN -V -V VISP = 3V -V 49 ISP 20 ISP 49 ISP 48 MAX V MAX V 48 10 MAX V 47 47 46 0 46 45 0 500 1000 1500 2000 –50 –25 0 25 50 75 100 125 150 0 0.5 1 1.5 2 2.5 3 3.5 ICTRL VOLTAGE (mV) TEMPERATURE (°C) ISP-ISN COMMON MODE (V) 8611 G40 8611 G41 8611 G42
IMON Voltage IMON Voltage IMON Voltage
1200 1200 1.10 VSYNC = 3.3V VSYNC = 0V VISP-VISN = 50mV 1000 1000 1.05 800 800 (mV) 600 (mV) 600 1.00 V IMON V IMON 400 400 IMON VOLTAGE (V) 0.95 200 200 0 0 0.90 0 10 20 30 40 50 0 10 20 30 40 50 0 0.5 1 1.5 2 2.5 3 3.5 VISP-VISN (mV) VISP-VISN (mV) ISP-ISN COMMON MODE (V) 8611 G43 8611 G44 8611 G45 8611fa 8 For more information www.linear.com/LT8611 Document Outline Features Applications Description 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 Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Transient Response Start-Up Dropout Performance Start-Up Dropout Performance
IL 1A/DIV VIN VIN VIN VIN V 2V/DIV 2V/DIV OUT 200mV/DIV V V V OUT OUT OUT VOUT 2V/DIV 2V/DIV 50µs/DIV 8611 G37 100ms/DIV 8611 G38 100ms/DIV 8611 G39 50mA TO 1A TRANSIENT 2.5Ω LOAD 20Ω LOAD 12VIN, 5VOUT (2A IN REGULATION) (250mA IN REGULATION) COUT = 47µF
ICTRL Voltage VISP-VISN Sense Voltage VISP-VISN Sense Voltage
60 55 55 54 54 50 53 53 52 40 52 VISP = 0V 51 VOLTAGE (mV) 30 VOLTAGE (mV) 51 VOLTAGE (mV) 50 ISN ISN 50 ISN -V -V VISP = 3V -V 49 ISP 20 ISP 49 ISP 48 MAX V MAX V 48 10 MAX V 47 47 46 0 46 45 0 500 1000 1500 2000 –50 –25 0 25 50 75 100 125 150 0 0.5 1 1.5 2 2.5 3 3.5 ICTRL VOLTAGE (mV) TEMPERATURE (°C) ISP-ISN COMMON MODE (V) 8611 G40 8611 G41 8611 G42
IMON Voltage IMON Voltage IMON Voltage
1200 1200 1.10 VSYNC = 3.3V VSYNC = 0V VISP-VISN = 50mV 1000 1000 1.05 800 800 (mV) 600 (mV) 600 1.00 V IMON V IMON 400 400 IMON VOLTAGE (V) 0.95 200 200 0 0 0.90 0 10 20 30 40 50 0 10 20 30 40 50 0 0.5 1 1.5 2 2.5 3 3.5 VISP-VISN (mV) VISP-VISN (mV) ISP-ISN COMMON MODE (V) 8611 G43 8611 G44 8611 G45 8611fa 8 For more information www.linear.com/LT8611 Document Outline Features Applications Description 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 Typical Application Related Parts
