Datasheet LTC3637 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | 76V, 1A Step-Down Regulator |
| Páginas / Página | 26 / 4 — ELECTRICAL CHARACTERISTICS. Note 5:. Note 4:. Note 6:. TYPICAL … |
| Formato / tamaño de archivo | PDF / 360 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS. Note 5:. Note 4:. Note 6:. TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency and Power Loss
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LTC3637
ELECTRICAL CHARACTERISTICS
Note that the maximum ambient temperature consistent with these junction temperature may impair device reliability or permanently damage specifications is determined by specific operating conditions in the device. The overtemperature protection level is not production tested. conjunction with board layout, the rated package thermal impedance and
Note 5:
Dynamic supply current is higher due to the gate charge being other environmental factors. delivered at the switching frequency. See Applications Information.
Note 4:
This IC includes over temperature protection that is intended to
Note 6:
For application concerned with pin creepage and clearance protect the device during momentary overload conditions. The maximum distances at high voltages, the MSOP package should be used. See rated junction temperature will be exceeded when this protection is active. Applications Information. Continuous operation above the specified absolute maximum operating
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency and Power Loss Efficiency and Power Loss Efficiency and Power Loss vs Load Current, VOUT = 5V vs Load Current, VOUT = 3.3V vs Load Current, VOUT = 1.8V
100 100 100 VOUT = 5V, FIGURE 13 CIRCUIT VOUT = 3.3V VOUT = 1.8V 90 90 FIGURE 13 CIRCUIT EFFICIENCY 90 FIGURE 13 CIRCUIT 80 80 80 EFFICIENCY POWER LOSS (mW) 70 POWER LOSS (mW) POWER LOSS (mW) EFFICIENCY 70 70 60 1000 60 1000 60 1000 POWER LOSS 50 50 50 POWER LOSS 40 100 40 100 40 100 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) POWER LOSS 30 30 30 20 10 V 20 10 20 10 IN = 12V VIN = 12V VIN = 12V 10 VIN = 24V 10 VIN = 24V 10 VIN = 24V VIN = 70V VIN = 68V VIN = 67V 0 0 0 0 0 0 0.1 1.0 10 100 1000 0.1 1.0 10 100 1000 0.1 1.0 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3637 G01 3637 G02 3637 G03
Efficiency vs Input Voltage Line Regulation vs Input Voltage Load Regulation vs Load Current
100 0.05 5.02 VOUT = 5V VOUT = 5V VIN = 12V FIGURE 13 CIRCUIT 0.04 ILOAD = 1A VOUT = 5V 90 0.03 FIGURE 13 CIRCUIT FIGURE 13 CIRCUIT 5.01 0.02 80 (%/V) 0.01 OUT 0 5.00 /V 70 –0.01 EFFICIENCY (%) ∆V OUT –0.02 OUTPUT VOLTAGE (V) I 4.99 60 LOAD = 1A I –0.03 LOAD = 100mA ILOAD = 10mA –0.04 ILOAD = 1mA 50 –0.05 4.98 0 10 20 30 40 50 60 70 80 5 15 25 35 45 55 65 75 0 100 200 300 400 500 600 700 800 900 1000 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3637 G04 3637 G05 3637 G06 3637fa 4 For more information www.linear.com/LTC3637 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
ELECTRICAL CHARACTERISTICS
Note that the maximum ambient temperature consistent with these junction temperature may impair device reliability or permanently damage specifications is determined by specific operating conditions in the device. The overtemperature protection level is not production tested. conjunction with board layout, the rated package thermal impedance and
Note 5:
Dynamic supply current is higher due to the gate charge being other environmental factors. delivered at the switching frequency. See Applications Information.
Note 4:
This IC includes over temperature protection that is intended to
Note 6:
For application concerned with pin creepage and clearance protect the device during momentary overload conditions. The maximum distances at high voltages, the MSOP package should be used. See rated junction temperature will be exceeded when this protection is active. Applications Information. Continuous operation above the specified absolute maximum operating
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency and Power Loss Efficiency and Power Loss Efficiency and Power Loss vs Load Current, VOUT = 5V vs Load Current, VOUT = 3.3V vs Load Current, VOUT = 1.8V
100 100 100 VOUT = 5V, FIGURE 13 CIRCUIT VOUT = 3.3V VOUT = 1.8V 90 90 FIGURE 13 CIRCUIT EFFICIENCY 90 FIGURE 13 CIRCUIT 80 80 80 EFFICIENCY POWER LOSS (mW) 70 POWER LOSS (mW) POWER LOSS (mW) EFFICIENCY 70 70 60 1000 60 1000 60 1000 POWER LOSS 50 50 50 POWER LOSS 40 100 40 100 40 100 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) POWER LOSS 30 30 30 20 10 V 20 10 20 10 IN = 12V VIN = 12V VIN = 12V 10 VIN = 24V 10 VIN = 24V 10 VIN = 24V VIN = 70V VIN = 68V VIN = 67V 0 0 0 0 0 0 0.1 1.0 10 100 1000 0.1 1.0 10 100 1000 0.1 1.0 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3637 G01 3637 G02 3637 G03
Efficiency vs Input Voltage Line Regulation vs Input Voltage Load Regulation vs Load Current
100 0.05 5.02 VOUT = 5V VOUT = 5V VIN = 12V FIGURE 13 CIRCUIT 0.04 ILOAD = 1A VOUT = 5V 90 0.03 FIGURE 13 CIRCUIT FIGURE 13 CIRCUIT 5.01 0.02 80 (%/V) 0.01 OUT 0 5.00 /V 70 –0.01 EFFICIENCY (%) ∆V OUT –0.02 OUTPUT VOLTAGE (V) I 4.99 60 LOAD = 1A I –0.03 LOAD = 100mA ILOAD = 10mA –0.04 ILOAD = 1mA 50 –0.05 4.98 0 10 20 30 40 50 60 70 80 5 15 25 35 45 55 65 75 0 100 200 300 400 500 600 700 800 900 1000 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD CURRENT (mA) 3637 G04 3637 G05 3637 G06 3637fa 4 For more information www.linear.com/LTC3637 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