Datasheet LT3027 (Analog Devices) - 6
| 制造商 | Analog Devices |
| 描述 | Dual 100mA, Low Dropout, Low Noise, Micropower Regulator with Independent Inputs |
| 页数 / 页 | 16 / 6 — TYPICAL PERFOR A CE CHARACTERISTICS. Input Ripple Rejection. … |
| 文件格式/大小 | PDF / 341 Kb |
| 文件语言 | 英语 |
TYPICAL PERFOR A CE CHARACTERISTICS. Input Ripple Rejection. Channel-to-Channel Isolation. Minimum Input Voltage
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LT3027
W U TYPICAL PERFOR A CE CHARACTERISTICS Input Ripple Rejection Channel-to-Channel Isolation Channel-to-Channel Isolation
80 100 ILOAD = 100mA PER CHANNEL 70 90 V 80 60 OUT1 20mV/DIV 70 50 60 40 V 50 OUT2 20mV/DIV 30 40 30 RIPPLE REJECTION (dB) 20 VIN = VOUT (NOMINAL) + 1V + 0.5VP-P RIPPLE 20 3027 G21a 10 AT f = 120Hz 50µs/DIV I 10 L = 50mA COUT1, COUT2 = 10µF CHANNEL-TO-CHANNEL ISOLATION (dB) 0 CBYP1, CBYP2 = 0.01µF 0 –50 –25 0 25 50 75 100 125 ∆IL1 = 10mA to 100mA 0.01 0.1 1 10 100 1000 ∆ TEMPERATURE (°C) IL2 = 10mA to 100mA FREQUENCY (kHz) VIN = 6V, VOUT1 = VOUT2 = 5V 3027 G20 3027 G21b
Minimum Input Voltage Load Regulation Output Noise Spectral Density
2.5 0 10 COUT = 10µF –1 √Hz) CBYP = 0 µV/ IL = 100mA 2.0 –2 IL = 100mA –3 1 VOUT SET FOR 5V 1.5 –4 IL = 50mA –5 VOUT =VADJ 1.0 –6 0.1 –7 LOAD REGULATION (mV) MINIMUM INPUT VOLTAGE (V) 0.5 –8 –9 ∆IL = 1mA TO 100mA 0 –10 OUTPUT NOISE SPECTRAL DENSITY ( 0.01 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0.01 0.1 1 10 100 TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (kHz) 3027 G24 3027 G22 3027 G23
RMS Output Noise vs Output Noise Spectral Density Bypass Capacitor
10 160 COUT = 10µF COUT = 10µF √Hz) IL = 100mA I 140 L = 100mA µV/ f = 10Hz TO 100kHz VOUT SET FOR 5V ) C 120 BYP = 1000pF 1 RMS V C µV 100 OUT SET FOR 5V BYP = 100pF 80 VOUT =VADJ 60 0.1 CBYP = 0.01µF OUTPUT NOISE ( 40 VOUT =VADJ 20 OUTPUT NOISE SPECTRAL DENSITY ( 0.01 0 0.01 0.1 1 10 100 10 100 1k 10k FREQUENCY (kHz) CBYP (pF) 3027 G26 3027 G25 3027fa 6
W U TYPICAL PERFOR A CE CHARACTERISTICS Input Ripple Rejection Channel-to-Channel Isolation Channel-to-Channel Isolation
80 100 ILOAD = 100mA PER CHANNEL 70 90 V 80 60 OUT1 20mV/DIV 70 50 60 40 V 50 OUT2 20mV/DIV 30 40 30 RIPPLE REJECTION (dB) 20 VIN = VOUT (NOMINAL) + 1V + 0.5VP-P RIPPLE 20 3027 G21a 10 AT f = 120Hz 50µs/DIV I 10 L = 50mA COUT1, COUT2 = 10µF CHANNEL-TO-CHANNEL ISOLATION (dB) 0 CBYP1, CBYP2 = 0.01µF 0 –50 –25 0 25 50 75 100 125 ∆IL1 = 10mA to 100mA 0.01 0.1 1 10 100 1000 ∆ TEMPERATURE (°C) IL2 = 10mA to 100mA FREQUENCY (kHz) VIN = 6V, VOUT1 = VOUT2 = 5V 3027 G20 3027 G21b
Minimum Input Voltage Load Regulation Output Noise Spectral Density
2.5 0 10 COUT = 10µF –1 √Hz) CBYP = 0 µV/ IL = 100mA 2.0 –2 IL = 100mA –3 1 VOUT SET FOR 5V 1.5 –4 IL = 50mA –5 VOUT =VADJ 1.0 –6 0.1 –7 LOAD REGULATION (mV) MINIMUM INPUT VOLTAGE (V) 0.5 –8 –9 ∆IL = 1mA TO 100mA 0 –10 OUTPUT NOISE SPECTRAL DENSITY ( 0.01 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 0.01 0.1 1 10 100 TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (kHz) 3027 G24 3027 G22 3027 G23
RMS Output Noise vs Output Noise Spectral Density Bypass Capacitor
10 160 COUT = 10µF COUT = 10µF √Hz) IL = 100mA I 140 L = 100mA µV/ f = 10Hz TO 100kHz VOUT SET FOR 5V ) C 120 BYP = 1000pF 1 RMS V C µV 100 OUT SET FOR 5V BYP = 100pF 80 VOUT =VADJ 60 0.1 CBYP = 0.01µF OUTPUT NOISE ( 40 VOUT =VADJ 20 OUTPUT NOISE SPECTRAL DENSITY ( 0.01 0 0.01 0.1 1 10 100 10 100 1k 10k FREQUENCY (kHz) CBYP (pF) 3027 G26 3027 G25 3027fa 6