Datasheet LTC7103 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 105V, 2.3A Low EMI Synchronous Step-Down Regulator |
| 页数 / 页 | 40 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 修订版 | B |
| 文件格式/大小 | PDF / 2.1 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Burst Mode Efficiency at 5VOUT
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LTC7103
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Burst Mode Efficiency at 5VOUT Burst Mode Efficiency at 12VOUT Burst Mode Efficiency at 3.3VOUT
100 100 100 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz 65 FIGURE 14 CIRCUIT 65 FIGURE 15 CIRCUIT 65 FIGURE 16 CIRCUIT VIN = 12V V 60 IN = 24V VIN = 12V V 60 60 IN = 24V VIN = 48V VIN = 24V 55 VIN = 48V 55 VIN = 72V 55 VIN = 48V VIN = 72V VIN = 100V VIN = 72V 50 50 50 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) 7103 G01 7103 G02 7103 G03
Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency at 5VOUT at 12VOUT at 3.3VOUT
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz 50 FIGURE 14 CIRCUIT 50 FIGURE 15 CIRCUIT 50 FIGURE 16 CIRCUIT VIN = 12V VIN = 24V VIN = 12V VIN = 24V 40 VIN = 48V VIN = 24V V 40 40 IN = 48V VIN = 72V VIN = 48V VIN = 72V VIN = 100V V 30 30 IN = 72V 30 10 100 1000 10 100 1000 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 7103 G04 7103 G05 7103 G06
Efficiency vs Input Voltage VIN Input Current in Regulation vs VOUT = 5V, Burst Mode Operation Efficiency vs Frequency at 1A Input Voltage
100 100 10 VOUT = 3.3V 95 95 ILOAD = 0 90 FIGURE 16 CIRCUIT 90 8 85 85 80 80 6 75 75 Y CURRENT (µA) 70 70 4 f EFFICIENCY (%) SW = 300kHz EFFICIENCY (%) ILOAD = 1A 65 FIGURE 14 CIRCUIT 65 FIGURE 14 CIRCUIT SUPPL ILOAD = 2A V V IN 60 IN = 12V 60 2 ILOAD = 1A VIN = 24V 55 ILOAD = 100mA 55 VIN = 48V ILOAD = 10mA V 50 IN = 72V 50 0 0 20 40 60 80 100 0.2 1 2 0 10 20 30 40 50 60 70 80 90 100 INPUT VOLTAGE (V) FREQUENCY (MHz) VIN VOLTAGE (V) 7103 G07 7103 G08 7103 G09 Rev. B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Burst Mode Efficiency at 5VOUT Burst Mode Efficiency at 12VOUT Burst Mode Efficiency at 3.3VOUT
100 100 100 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz 65 FIGURE 14 CIRCUIT 65 FIGURE 15 CIRCUIT 65 FIGURE 16 CIRCUIT VIN = 12V V 60 IN = 24V VIN = 12V V 60 60 IN = 24V VIN = 48V VIN = 24V 55 VIN = 48V 55 VIN = 72V 55 VIN = 48V VIN = 72V VIN = 100V VIN = 72V 50 50 50 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) 7103 G01 7103 G02 7103 G03
Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency at 5VOUT at 12VOUT at 3.3VOUT
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz EFFICIENCY (%) fSW = 300kHz 50 FIGURE 14 CIRCUIT 50 FIGURE 15 CIRCUIT 50 FIGURE 16 CIRCUIT VIN = 12V VIN = 24V VIN = 12V VIN = 24V 40 VIN = 48V VIN = 24V V 40 40 IN = 48V VIN = 72V VIN = 48V VIN = 72V VIN = 100V V 30 30 IN = 72V 30 10 100 1000 10 100 1000 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 7103 G04 7103 G05 7103 G06
Efficiency vs Input Voltage VIN Input Current in Regulation vs VOUT = 5V, Burst Mode Operation Efficiency vs Frequency at 1A Input Voltage
100 100 10 VOUT = 3.3V 95 95 ILOAD = 0 90 FIGURE 16 CIRCUIT 90 8 85 85 80 80 6 75 75 Y CURRENT (µA) 70 70 4 f EFFICIENCY (%) SW = 300kHz EFFICIENCY (%) ILOAD = 1A 65 FIGURE 14 CIRCUIT 65 FIGURE 14 CIRCUIT SUPPL ILOAD = 2A V V IN 60 IN = 12V 60 2 ILOAD = 1A VIN = 24V 55 ILOAD = 100mA 55 VIN = 48V ILOAD = 10mA V 50 IN = 72V 50 0 0 20 40 60 80 100 0.2 1 2 0 10 20 30 40 50 60 70 80 90 100 INPUT VOLTAGE (V) FREQUENCY (MHz) VIN VOLTAGE (V) 7103 G07 7103 G08 7103 G09 Rev. B For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts