Datasheet LTC7103 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 105V, 2.3A Low EMI Synchronous Step-Down Regulator |
| 页数 / 页 | 40 / 8 — 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. Output Current Programming
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LTC7103
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Output Current Programming ICTRL Voltage to Inductor Current Current Loop Step Response Gain vs Frequency
3.5 3.0 IL 500mA/DIV 2.5 BW = 94kHz 2.0 1.5 VICTRL VIN = 24V 500mV/DIV VOUT = 2V 1.0 RICTRL = 38.3k 40µs/DIV I 7103 G28 OUT(AVG) = 1A TAGE TO INDUCTOR CURRENT GAIN (A/V) 0.5 fSW = 300kHz VICTRL = 0.76V TO 1.12V PULSE VOL FIGURE 14 CIRCUIT VIN = 48V, VOUT = 2V 0 FIGURE 14 CIRCUIT I CTRL 0.1 1 10 100 300 FREQUENCY (kHz) 7103 G29
Radiated EMI Performance (CISPR25 Radiated Radiated EMI Performance (CISPR25 Radiated Emission Test with Class 5 Peak Limits) Emission Test with Class 5 Peak Limits)
50 50 VERTICAL POLARIZATION HORIZONTAL POLARIZATION 40 40 V/m) V/m) 30 30 20 20 AMPLITUDE (dBµ AMPLITUDE (dBµ 10 10 CLASS 5 PEAK LIMIT CLASS 5 PEAK LIMIT LTC7103 LTC7103 0 0 0 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz) FREQUENCY (MHz) FIGURE 17 CIRCUIT 7103 G30 FIGURE 17 CIRCUIT 7103 G31 48VIN TO 5VOUT AT 2A 48VIN TO 5VOUT AT 2A fSW = 400kHz fSW = 400kHz Rev. B 8 For more information www.analog.com 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. Output Current Programming ICTRL Voltage to Inductor Current Current Loop Step Response Gain vs Frequency
3.5 3.0 IL 500mA/DIV 2.5 BW = 94kHz 2.0 1.5 VICTRL VIN = 24V 500mV/DIV VOUT = 2V 1.0 RICTRL = 38.3k 40µs/DIV I 7103 G28 OUT(AVG) = 1A TAGE TO INDUCTOR CURRENT GAIN (A/V) 0.5 fSW = 300kHz VICTRL = 0.76V TO 1.12V PULSE VOL FIGURE 14 CIRCUIT VIN = 48V, VOUT = 2V 0 FIGURE 14 CIRCUIT I CTRL 0.1 1 10 100 300 FREQUENCY (kHz) 7103 G29
Radiated EMI Performance (CISPR25 Radiated Radiated EMI Performance (CISPR25 Radiated Emission Test with Class 5 Peak Limits) Emission Test with Class 5 Peak Limits)
50 50 VERTICAL POLARIZATION HORIZONTAL POLARIZATION 40 40 V/m) V/m) 30 30 20 20 AMPLITUDE (dBµ AMPLITUDE (dBµ 10 10 CLASS 5 PEAK LIMIT CLASS 5 PEAK LIMIT LTC7103 LTC7103 0 0 0 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz) FREQUENCY (MHz) FIGURE 17 CIRCUIT 7103 G30 FIGURE 17 CIRCUIT 7103 G31 48VIN TO 5VOUT AT 2A 48VIN TO 5VOUT AT 2A fSW = 400kHz fSW = 400kHz Rev. B 8 For more information www.analog.com 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