Datasheet LTC3642 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | High Efficiency, High Voltage 50mA Synchronous Step-Down Converter |
| Pages / Page | 22 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| File Format / Size | PDF / 1.8 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current. Line Regulation
Model Line for this Datasheet
- LTC3642EDD#PBF LTC3642EDD#TRPBF LTC3642EDD-3.3#PBF LTC3642EDD-3.3#TRPBF LTC3642EDD-5#PBF LTC3642EDD-5#TRPBF LTC3642EMS8E#PBF LTC3642EMS8E#TRPBF LTC3642EMS8E-3.3#PBF LTC3642EMS8E-3.3#TRPBF LTC3642EMS8E-5#PBF LTC3642EMS8E-5#TRPBF LTC3642IDD#PBF LTC3642IDD#TRPBF LTC3642IDD-3.3#PBF LTC3642IDD-3.3#TRPBF LTC3642IDD-5#PBF LTC3642IDD-5#TRPBF LTC3642IMS8E#PBF LTC3642IMS8E#TRPBF LTC3642IMS8E-3.3#PBF LTC3642IMS8E-3.3#TRPBF LTC3642IMS8E-5#PBF LTC3642IMS8E-5#TRPBF
Text Version of Document
LTC3642
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current Line Regulation Load Regulation
100 0.30 5.05 FIGURE 11 CIRCUIT ILOAD = 25mA VIN = 10V ISET OPEN FIGURE 11 CIRCUIT 5.04 FIGURE 11 CIRCUIT 95 VOUT = 5V VIN = 10V 0.20 5.03 ISET OPEN 90 VIN = 15V 5.02 0.10 85 (%) 5.01 OUT 80 VIN = 45V /V 0 5.00 VIN = 24V 4.99 EFFICIENCY (%) 75 V ∆V OUT–0.10 IN = 36V OUTPUT VOLTAGE (V) 4.98 70 4.97 –0.20 65 4.96 60 –0.30 4.95 0.1 1 10 100 5 10 15 20 25 30 35 40 45 0 10 20 30 40 50 LOAD CURRENT (mA) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3642 G01 3642 G02 3642 G03
Feedback Comparator Voltage Feedback Comparator Hysteresis Peak Current Trip Threshold vs Temperature Voltage vs Temperature vs Temperature and ISET
0.801 5.6 130 VIN = 10V V V IN = 10V 120 IN = 10V ISET OPEN 5.4 110 100 90 0.800 5.2 80 70 5.0 R 60 ISET = 500k 50 0.799 4.8 40 30 ISET = GND 4.6 20 PEAK CURRENT TRIP THRESHOLD (mA) 10 FEEDBACK COMPARATOR TRIP VOLTAGE (V) FEEDBACK COMPARATOR HYSTERESIS (mV) 0.798 4.4 0 –40 –10 20 50 80 110 –40 –10 20 50 80 110 –40 –10 20 50 80 110 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3642 G04 3642 G05 3642 G06
Peak Current Trip Threshold Quiescent Supply Current Quiescent Supply Current vs RISET vs Input Voltage vs Temperature
120 14 V 14 IN = 10V V 110 IN = 10V 12 100 12 SLEEP SLEEP 90 10 10 80 70 8 8 60 Y CURRENT (µA) 6 Y CURRENT (µA) 6 50 40 SUPPL 4 SHUTDOWN SUPPL 4 SHUTDOWN V IN V IN 30 2 2 PEAK CURRENT TRIP THRESHOLD (mA) 20 10 0 0 0 200 400 600 800 1000 1200 5 15 25 35 45 –40 –10 20 50 80 110 RSET (kΩ) INPUT VOLTAGE (V) TEMPERATURE (°C) 3642 G07 3642 G08 3642 G09 3642fc 4 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 APPLICATION RELATED PARTS
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current Line Regulation Load Regulation
100 0.30 5.05 FIGURE 11 CIRCUIT ILOAD = 25mA VIN = 10V ISET OPEN FIGURE 11 CIRCUIT 5.04 FIGURE 11 CIRCUIT 95 VOUT = 5V VIN = 10V 0.20 5.03 ISET OPEN 90 VIN = 15V 5.02 0.10 85 (%) 5.01 OUT 80 VIN = 45V /V 0 5.00 VIN = 24V 4.99 EFFICIENCY (%) 75 V ∆V OUT–0.10 IN = 36V OUTPUT VOLTAGE (V) 4.98 70 4.97 –0.20 65 4.96 60 –0.30 4.95 0.1 1 10 100 5 10 15 20 25 30 35 40 45 0 10 20 30 40 50 LOAD CURRENT (mA) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3642 G01 3642 G02 3642 G03
Feedback Comparator Voltage Feedback Comparator Hysteresis Peak Current Trip Threshold vs Temperature Voltage vs Temperature vs Temperature and ISET
0.801 5.6 130 VIN = 10V V V IN = 10V 120 IN = 10V ISET OPEN 5.4 110 100 90 0.800 5.2 80 70 5.0 R 60 ISET = 500k 50 0.799 4.8 40 30 ISET = GND 4.6 20 PEAK CURRENT TRIP THRESHOLD (mA) 10 FEEDBACK COMPARATOR TRIP VOLTAGE (V) FEEDBACK COMPARATOR HYSTERESIS (mV) 0.798 4.4 0 –40 –10 20 50 80 110 –40 –10 20 50 80 110 –40 –10 20 50 80 110 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3642 G04 3642 G05 3642 G06
Peak Current Trip Threshold Quiescent Supply Current Quiescent Supply Current vs RISET vs Input Voltage vs Temperature
120 14 V 14 IN = 10V V 110 IN = 10V 12 100 12 SLEEP SLEEP 90 10 10 80 70 8 8 60 Y CURRENT (µA) 6 Y CURRENT (µA) 6 50 40 SUPPL 4 SHUTDOWN SUPPL 4 SHUTDOWN V IN V IN 30 2 2 PEAK CURRENT TRIP THRESHOLD (mA) 20 10 0 0 0 200 400 600 800 1000 1200 5 15 25 35 45 –40 –10 20 50 80 110 RSET (kΩ) INPUT VOLTAGE (V) TEMPERATURE (°C) 3642 G07 3642 G08 3642 G09 3642fc 4 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 APPLICATION RELATED PARTS
