Datasheet LT7101 (Analog Devices) - 5
| 制造商 | Analog Devices |
| 描述 | 105V, 1A Low EMI Synchronous Step-Down Regulator with Fast Current Programming |
| 页数 / 页 | 38 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 文件格式/大小 | PDF / 3.2 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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LT7101
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 fSW = 300kHz fSW = 300kHz fSW = 300kHz 95 FIGURE 14 CIRCUIT 95 FIGURE 15 CIRCUIT 95 FIGURE 16 CIRCUIT 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 65 65 V VIN = 24V V 60 IN = 12V IN = 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) 7101 G01 7101 G02 7101 G03
Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency at 5VOUT at 12VOUT at 3.3VOUT
100 100 100 fSW = 300kHz fSW = 300kHz fSW = 300kHz FIGURE 14 CIRCUIT FIGURE 15 CIRCUIT FIGURE 16 CIRCUIT 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 50 50 50 VIN = 12V VIN = 24V VIN = 12V 40 VIN = 24V VIN = 48V VIN = 24V V 40 40 IN = 48V VIN = 72V VIN = 48V VIN = 72V VIN = 100V VIN = 72V 30 30 30 10 100 1000 10 100 1000 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 7101 G04 7101 G05 7101 G06
Forced Continuous Mode Forced Continuous Mode Forced Continuous Mode Efficiency at 5VOUT Efficiency at 12VOUT Efficiency at 3.3VOUT
100 100 100 fSW = 300kHz fSW = 300kHz fSW = 300kHz FIGURE 14 CIRCUIT FIGURE 15 CIRCUIT FIGURE 16 CIRCUIT 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 50 50 50 VIN = 12V VIN = 24V VIN = 12V 40 VIN = 24V VIN = 48V VIN = 24V V 40 40 IN = 48V VIN = 72V VIN = 48V VIN = 72V VIN = 100V VIN = 72V 30 30 30 10 100 1000 10 100 1000 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 7101 G07 7101 G08 7101 G09 Rev. 0 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 Typical Applications Package Description 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 fSW = 300kHz fSW = 300kHz fSW = 300kHz 95 FIGURE 14 CIRCUIT 95 FIGURE 15 CIRCUIT 95 FIGURE 16 CIRCUIT 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 65 65 V VIN = 24V V 60 IN = 12V IN = 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) 7101 G01 7101 G02 7101 G03
Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency Pulse-Skipping Mode Efficiency at 5VOUT at 12VOUT at 3.3VOUT
100 100 100 fSW = 300kHz fSW = 300kHz fSW = 300kHz FIGURE 14 CIRCUIT FIGURE 15 CIRCUIT FIGURE 16 CIRCUIT 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 50 50 50 VIN = 12V VIN = 24V VIN = 12V 40 VIN = 24V VIN = 48V VIN = 24V V 40 40 IN = 48V VIN = 72V VIN = 48V VIN = 72V VIN = 100V VIN = 72V 30 30 30 10 100 1000 10 100 1000 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 7101 G04 7101 G05 7101 G06
Forced Continuous Mode Forced Continuous Mode Forced Continuous Mode Efficiency at 5VOUT Efficiency at 12VOUT Efficiency at 3.3VOUT
100 100 100 fSW = 300kHz fSW = 300kHz fSW = 300kHz FIGURE 14 CIRCUIT FIGURE 15 CIRCUIT FIGURE 16 CIRCUIT 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 50 50 50 VIN = 12V VIN = 24V VIN = 12V 40 VIN = 24V VIN = 48V VIN = 24V V 40 40 IN = 48V VIN = 72V VIN = 48V VIN = 72V VIN = 100V VIN = 72V 30 30 30 10 100 1000 10 100 1000 10 100 1000 LOAD CURRENT (mA) LOAD CURRENT (mA) LOAD CURRENT (mA) 7101 G07 7101 G08 7101 G09 Rev. 0 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 Typical Applications Package Description Typical Application Related Parts