Datasheet LTC3630 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | High Efficiency, 65V 500mA Synchronous Step-Down Converter |
| Pages / Page | 26 / 4 — elecTrical characTerisTics. Note 5:. Note 4:. Note 6:. Typical … |
| File Format / Size | PDF / 291 Kb |
| Document Language | English |
elecTrical characTerisTics. Note 5:. Note 4:. Note 6:. Typical perForMance characTerisTics. Soft-Start Waveform
Model Line for this Datasheet
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LTC3630
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 Soft-Start Waveform Load Step Transient Response Short-Circuit Response
OUTPUT VOLTAGE OUTPUT OUTPUT 2V/DIV VOLTAGE VOLTAGE 50mV/DIV 2V/DIV INDUCTOR LOAD INDUCTOR CURRENT CURRENT CURRENT 500mA/DIV 200mA/DIV 500mA/DIV C 3630 G01 3630 G02 3630 G03 OUT = 100µF 1ms/DIV VIN = 12V 500µs/DIV VIN = 12V 200µs/DIV FIGURE 13 CIRCUIT VOUT = 5V VOUT = 5V FIGURE 13 CIRCUIT FIGURE 13 CIRCUIT
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 = 1.8V 90 90 90 FIGURE 13 CIRCUIT 80 EFFICIENCY 80 EFFICIENCY 80 POWER LOSS (mW) POWER LOSS (mW) POWER LOSS (mW) 70 1000 70 1000 70 EFFICIENCY 1000 60 60 60 50 100 50 100 50 100 POWER LOSS POWER LOSS POWER LOSS 40 40 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 10 30 10 30 10 V VOUT = 3.3V 20 OUT = 5V FIGURE 13 CIRCUIT 20 FIGURE 13 CIRCUIT 20 10 VIN = 12V 1 10 VIN = 12V 1 10 VIN = 12V 1 V VIN = 65V VIN = 65V 0 IN = 65V 0 0 0.1 1 10 100 1000 0.1 1 10 100 1000 0.1 1 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3630 G04 3630 G05 3630 G06 3630fd 4 For more information www.linear.com/LTC3630 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 Soft-Start Waveform Load Step Transient Response Short-Circuit Response
OUTPUT VOLTAGE OUTPUT OUTPUT 2V/DIV VOLTAGE VOLTAGE 50mV/DIV 2V/DIV INDUCTOR LOAD INDUCTOR CURRENT CURRENT CURRENT 500mA/DIV 200mA/DIV 500mA/DIV C 3630 G01 3630 G02 3630 G03 OUT = 100µF 1ms/DIV VIN = 12V 500µs/DIV VIN = 12V 200µs/DIV FIGURE 13 CIRCUIT VOUT = 5V VOUT = 5V FIGURE 13 CIRCUIT FIGURE 13 CIRCUIT
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 = 1.8V 90 90 90 FIGURE 13 CIRCUIT 80 EFFICIENCY 80 EFFICIENCY 80 POWER LOSS (mW) POWER LOSS (mW) POWER LOSS (mW) 70 1000 70 1000 70 EFFICIENCY 1000 60 60 60 50 100 50 100 50 100 POWER LOSS POWER LOSS POWER LOSS 40 40 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 10 30 10 30 10 V VOUT = 3.3V 20 OUT = 5V FIGURE 13 CIRCUIT 20 FIGURE 13 CIRCUIT 20 10 VIN = 12V 1 10 VIN = 12V 1 10 VIN = 12V 1 V VIN = 65V VIN = 65V 0 IN = 65V 0 0 0.1 1 10 100 1000 0.1 1 10 100 1000 0.1 1 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 3630 G04 3630 G05 3630 G06 3630fd 4 For more information www.linear.com/LTC3630 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
