Datasheet LT3027 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | Dual 100mA, Low Dropout, Low Noise, Micropower Regulator with Independent Inputs |
| Seiten / Seite | 16 / 5 — TYPICAL PERFOR A CE CHARACTERISTICS. SHDN1 or SHDN2 Pin Threshold. SHDN1 … |
| Dateiformat / Größe | PDF / 341 Kb |
| Dokumentensprache | Englisch |
TYPICAL PERFOR A CE CHARACTERISTICS. SHDN1 or SHDN2 Pin Threshold. SHDN1 or SHDN2 Pin Input. (Off-to-On). Current
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LT3027
W U TYPICAL PERFOR A CE CHARACTERISTICS SHDN1 or SHDN2 Pin Threshold SHDN1 or SHDN2 Pin Input SHDN1 or SHDN2 Pin Input (Off-to-On) Current Current
1.0 1.0 1.4 VSHDN = 20V 0.9 0.9 1.2 0.8 IL = 100mA µA) 0.8 µA) 0.7 0.7 1.0 0.6 0.6 IL = 1mA 0.8 0.5 0.5 0.6 0.4 0.4 0.3 0.3 0.4 SHDN PIN THRESHOLD (V) 0.2 0.2 SHDN PIN INPUT CURRENT ( SHDN PIN INPUT CURRENT ( 0.2 0.1 0.1 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 8 9 10 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) SHDN PIN VOLTAGE (V) TEMPERATURE (°C) 3027 G10 3027 G11 3027 G12
ADJ1 or ADJ2 Pin Bias Current Current Limit Current Limit
100 350 350 V 90 OUT = 0V VIN = 7V 300 TJ = 25°C 300 VOUT = 0V 80 70 250 250 60 200 200 50 150 150 40 30 100 CURRENT LIMIT (mA) 100 ADJ PIN BIAS CURRENT (nA) 20 SHORT-CIRCUIT CURRENT (mA) 50 50 10 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3027 G13 3027 G14 3027 G15
Input Ripple Rejection Input Ripple Rejection
80 80 70 70 CBYP = 0.01µF 60 60 CBYP = 1000pF 50 50 CBYP = 100pF COUT = 10µF 40 40 30 30 RIPPLE REJECTION (dB) 20 RIPPLE REJECTION (dB) 20 I I 10 L = 100mA L = 100mA V 10 IN = 2.3V + 50mVRMS RIPPLE COUT = 1µF VIN = 2.3V + 50mVRMS RIPPLE CBYP = 0 C 0 OUT = 10µF 0 0.01 0.1 1 10 100 1000 0.01 0.1 1 10 100 1000 FREQUENCY (kHz) FREQUENCY (kHz) 3027 G18 3027 G19 3027fa 5
W U TYPICAL PERFOR A CE CHARACTERISTICS SHDN1 or SHDN2 Pin Threshold SHDN1 or SHDN2 Pin Input SHDN1 or SHDN2 Pin Input (Off-to-On) Current Current
1.0 1.0 1.4 VSHDN = 20V 0.9 0.9 1.2 0.8 IL = 100mA µA) 0.8 µA) 0.7 0.7 1.0 0.6 0.6 IL = 1mA 0.8 0.5 0.5 0.6 0.4 0.4 0.3 0.3 0.4 SHDN PIN THRESHOLD (V) 0.2 0.2 SHDN PIN INPUT CURRENT ( SHDN PIN INPUT CURRENT ( 0.2 0.1 0.1 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 8 9 10 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) SHDN PIN VOLTAGE (V) TEMPERATURE (°C) 3027 G10 3027 G11 3027 G12
ADJ1 or ADJ2 Pin Bias Current Current Limit Current Limit
100 350 350 V 90 OUT = 0V VIN = 7V 300 TJ = 25°C 300 VOUT = 0V 80 70 250 250 60 200 200 50 150 150 40 30 100 CURRENT LIMIT (mA) 100 ADJ PIN BIAS CURRENT (nA) 20 SHORT-CIRCUIT CURRENT (mA) 50 50 10 0 0 0 –50 –25 0 25 50 75 100 125 0 1 2 3 4 5 6 7 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) INPUT VOLTAGE (V) TEMPERATURE (°C) 3027 G13 3027 G14 3027 G15
Input Ripple Rejection Input Ripple Rejection
80 80 70 70 CBYP = 0.01µF 60 60 CBYP = 1000pF 50 50 CBYP = 100pF COUT = 10µF 40 40 30 30 RIPPLE REJECTION (dB) 20 RIPPLE REJECTION (dB) 20 I I 10 L = 100mA L = 100mA V 10 IN = 2.3V + 50mVRMS RIPPLE COUT = 1µF VIN = 2.3V + 50mVRMS RIPPLE CBYP = 0 C 0 OUT = 10µF 0 0.01 0.1 1 10 100 1000 0.01 0.1 1 10 100 1000 FREQUENCY (kHz) FREQUENCY (kHz) 3027 G18 3027 G19 3027fa 5