Datasheet LTC3632 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | High Efficiency, High Voltage 20mA Synchronous Step-Down Converter |
| 页数 / 页 | 22 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 1.7 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current,. VOUT = 5V. VOUT = 3.3V
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LTC3632
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency vs Load Current, Efficiency vs Load Current, Efficiency vs Load Current, VOUT = 5V VOUT = 3.3V VOUT = 2.5V
100 100 100 95 VIN = 12V 95 95 VIN = 24V VIN = 12V 90 90 90 VIN = 24V VIN = 12V 85 85 85 VIN = 24V 80 80 80 V 75 IN = 48V 75 75 VIN = 36V VIN = 48V 70 70 70 EFFICIENCY (%) EFFICIENCY (%) VIN = 36V EFFICIENCY (%) VIN = 48V 65 65 65 V 60 60 IN = 36V 60 55 VOUT = 5V 55 VOUT = 3.3V 55 VOUT = 2.5V FIGURE 11 CIRCUIT FIGURE 11 CIRCUIT FIGURE 11 CIRCUIT 50 50 50 0.1 1 10 0.1 1 10 0.1 1 10 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3632 G01 3632 G02 3632 G03
Efficiency vs Input Voltage Line Regulation Load Regulation
100 0.50 5.05 VOUT = 5V ILOAD = 20mA VIN = 10V FIGURE 11 CIRCUIT 0.40 FIGURE 11 CIRCUIT 5.04 VOUT = 5V 95 0.30 5.03 FIGURE 11 CIRCUIT 0.20 5.02 90 (%) 0.10 5.01 ILOAD = 20mA 85 OUT/V 0 5.00 –0.10 4.99 EFFICIENCY (%) V OUT 80 Δ I –0.20 4.98 LOAD = 1mA ILOAD = 5mA OUTPUT VOLTAGE (V) –0.30 4.97 75 –0.40 4.96 70 –0.50 4.95 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3632 G04 3632 G05 3632 G06
Feedback Comparator Trip Feedback Comparator Hysteresis Peak Current Trip Threshold Voltage vs Temperature Voltage vs Temperature vs Temperature and ISET
0.801 5.6 60 VIN = 10V VIN = 10V VIN = 10V ISET OPEN 5.4 50 0.800 5.2 40 5.0 30 RISET = 500k 0.799 4.8 20 ISET = GND 4.6 10 PEAK CURRENT TRIP THRESHOLD (mA) 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) 3632 G07 3632 G08 3632 G09 3632fc 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, Efficiency vs Load Current, Efficiency vs Load Current, VOUT = 5V VOUT = 3.3V VOUT = 2.5V
100 100 100 95 VIN = 12V 95 95 VIN = 24V VIN = 12V 90 90 90 VIN = 24V VIN = 12V 85 85 85 VIN = 24V 80 80 80 V 75 IN = 48V 75 75 VIN = 36V VIN = 48V 70 70 70 EFFICIENCY (%) EFFICIENCY (%) VIN = 36V EFFICIENCY (%) VIN = 48V 65 65 65 V 60 60 IN = 36V 60 55 VOUT = 5V 55 VOUT = 3.3V 55 VOUT = 2.5V FIGURE 11 CIRCUIT FIGURE 11 CIRCUIT FIGURE 11 CIRCUIT 50 50 50 0.1 1 10 0.1 1 10 0.1 1 10 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3632 G01 3632 G02 3632 G03
Efficiency vs Input Voltage Line Regulation Load Regulation
100 0.50 5.05 VOUT = 5V ILOAD = 20mA VIN = 10V FIGURE 11 CIRCUIT 0.40 FIGURE 11 CIRCUIT 5.04 VOUT = 5V 95 0.30 5.03 FIGURE 11 CIRCUIT 0.20 5.02 90 (%) 0.10 5.01 ILOAD = 20mA 85 OUT/V 0 5.00 –0.10 4.99 EFFICIENCY (%) V OUT 80 Δ I –0.20 4.98 LOAD = 1mA ILOAD = 5mA OUTPUT VOLTAGE (V) –0.30 4.97 75 –0.40 4.96 70 –0.50 4.95 10 15 20 25 30 35 40 45 50 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3632 G04 3632 G05 3632 G06
Feedback Comparator Trip Feedback Comparator Hysteresis Peak Current Trip Threshold Voltage vs Temperature Voltage vs Temperature vs Temperature and ISET
0.801 5.6 60 VIN = 10V VIN = 10V VIN = 10V ISET OPEN 5.4 50 0.800 5.2 40 5.0 30 RISET = 500k 0.799 4.8 20 ISET = GND 4.6 10 PEAK CURRENT TRIP THRESHOLD (mA) 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) 3632 G07 3632 G08 3632 G09 3632fc 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