Datasheet LT3071 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator with Analog Margining |
| Seiten / Seite | 30 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Current Limit vs Temperature. … |
| Dateiformat / Größe | PDF / 1.1 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS. Current Limit vs Temperature. Current Limit vs VIN – VOUT. BIAS Pin Ripple Rejection
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LT3071
TYPICAL PERFORMANCE CHARACTERISTICS Current Limit vs Temperature Current Limit vs VIN – VOUT BIAS Pin Ripple Rejection
7.50 8 100 VIN = VOUT(NOMINAL) + 300mV VBIAS = 3.3V VIN = 1.3V 7.25 T 90 J = 25°C V 7 OUT = 1V I 7.00 80 OUT = 5A C 6 OUT = 10µF + 4.7µF + 2.2µF 6.75 70 5 6.50 60 6.25 4 50 6.00 40 3 CURRENT LIMIT (A) 5.75 CURRENT LIMIT (A) 30 2 5.50 VOUT = 1.8V, VBIAS = 3.3V V 20 OUT = 1.8V BIAS PIN RIPPLE REJECTION (dB) VBIAS = 2.5V + 500mVP-P VOUT = 1.2V, VBIAS = 3.3V 1 V 5.25 OUT = 1.2V 10 VBIAS = 2.7V + 500mVP-P VOUT = 0.8V, VBIAS = 2.5V VOUT = 0.8V VBIAS = 3.3V + 500mVP-P 5.00 0 0 –75 –50 –25 0 25 50 75 100 125 150 175 0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 10 100 1k 10k 100k 1M 10M TEMPERATURE (°C) IN-TO-OUT VOLTAGE DIFFERENTIAL (V) FREQUENCY (Hz) 3071 G28 3071 G29 3071 G30
IN Pin Ripple Rejection IN Pin Ripple Rejection IN Pin Ripple Rejection vs VIN – VOUT , 1V/5A
80 80 120 50mV 110 P-P RIPPLE ON VIN 70 70 COUT = 16.9μF 100 VBIAS = 2.5V 60 60 90 TA = 25°C 80 RIPPLE AT f = 10kHz 50 50 70 40 40 60 PSRR (dB) 50 30 COUT = 117µF 30 COUT = 117µF C RIPPLE AT f = 100kHz OUT = 16.9µF COUT = 16.9µF 40 20 V 20 OUT = 1V VOUT = 1V 30 IN PIN RIPPLE REJECTION (dB) VIN = 1.3V + 50mVP-P RIPPLE IN PIN RIPPLE REJECTION (dB) V 20 10 IN = 1.3V + 50mVP-P RIPPLE RIPPLE AT f = 1MHz VBIAS = 2.5V 10 VBIAS = 2.5V I 10 OUT = 1A IOUT = 5A 0 0 0 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 FREQUENCY (Hz) FREQUENCY (Hz) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) 3071 G33 3071 G31 3071 G32
IN Pin Ripple Rejection IN Pin Ripple Rejection IN Pin Ripple Rejection vs VIN – VOUT , 1V/2.5A vs VIN – VOUT , 1V/1A vs VIN – VOUT , 1V/5A
120 120 120 110 50mV 50mV P-P RIPPLE ON VIN 110 P-P RIPPLE ON VIN 110 50mVP-P RIPPLE ON VIN C COUT = 16.9μF C 100 OUT = 16.9μF OUT = 117μF V 100 V 100 BIAS = 2.5V BIAS = 2.5V RIPPLE AT f = 10kHz VBIAS = 2.5V 90 T T A = 25°C RIPPLE AT f = 10kHz 90 A = 25°C 90 TA = 25°C 80 80 80 RIPPLE AT f = 10kHz 70 70 RIPPLE AT f = 100kHz 70 60 RIPPLE AT f = 100kHz 60 60 RIPPLE AT f = 1MHz PSRR (dB) 50 PSRR (dB) 50 PSRR (dB) 50 40 40 40 RIPPLE AT f = 100kHz 30 RIPPLE AT f = 1MHz 30 RIPPLE AT f = 1MHz 30 20 20 20 10 10 10 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) 3071 G34 3071 G35 3071 G36 3071fc 8 For more information www.linear.com/LT3071 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Current Limit vs Temperature Current Limit vs VIN – VOUT BIAS Pin Ripple Rejection
7.50 8 100 VIN = VOUT(NOMINAL) + 300mV VBIAS = 3.3V VIN = 1.3V 7.25 T 90 J = 25°C V 7 OUT = 1V I 7.00 80 OUT = 5A C 6 OUT = 10µF + 4.7µF + 2.2µF 6.75 70 5 6.50 60 6.25 4 50 6.00 40 3 CURRENT LIMIT (A) 5.75 CURRENT LIMIT (A) 30 2 5.50 VOUT = 1.8V, VBIAS = 3.3V V 20 OUT = 1.8V BIAS PIN RIPPLE REJECTION (dB) VBIAS = 2.5V + 500mVP-P VOUT = 1.2V, VBIAS = 3.3V 1 V 5.25 OUT = 1.2V 10 VBIAS = 2.7V + 500mVP-P VOUT = 0.8V, VBIAS = 2.5V VOUT = 0.8V VBIAS = 3.3V + 500mVP-P 5.00 0 0 –75 –50 –25 0 25 50 75 100 125 150 175 0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 10 100 1k 10k 100k 1M 10M TEMPERATURE (°C) IN-TO-OUT VOLTAGE DIFFERENTIAL (V) FREQUENCY (Hz) 3071 G28 3071 G29 3071 G30
IN Pin Ripple Rejection IN Pin Ripple Rejection IN Pin Ripple Rejection vs VIN – VOUT , 1V/5A
80 80 120 50mV 110 P-P RIPPLE ON VIN 70 70 COUT = 16.9μF 100 VBIAS = 2.5V 60 60 90 TA = 25°C 80 RIPPLE AT f = 10kHz 50 50 70 40 40 60 PSRR (dB) 50 30 COUT = 117µF 30 COUT = 117µF C RIPPLE AT f = 100kHz OUT = 16.9µF COUT = 16.9µF 40 20 V 20 OUT = 1V VOUT = 1V 30 IN PIN RIPPLE REJECTION (dB) VIN = 1.3V + 50mVP-P RIPPLE IN PIN RIPPLE REJECTION (dB) V 20 10 IN = 1.3V + 50mVP-P RIPPLE RIPPLE AT f = 1MHz VBIAS = 2.5V 10 VBIAS = 2.5V I 10 OUT = 1A IOUT = 5A 0 0 0 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 FREQUENCY (Hz) FREQUENCY (Hz) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) 3071 G33 3071 G31 3071 G32
IN Pin Ripple Rejection IN Pin Ripple Rejection IN Pin Ripple Rejection vs VIN – VOUT , 1V/2.5A vs VIN – VOUT , 1V/1A vs VIN – VOUT , 1V/5A
120 120 120 110 50mV 50mV P-P RIPPLE ON VIN 110 P-P RIPPLE ON VIN 110 50mVP-P RIPPLE ON VIN C COUT = 16.9μF C 100 OUT = 16.9μF OUT = 117μF V 100 V 100 BIAS = 2.5V BIAS = 2.5V RIPPLE AT f = 10kHz VBIAS = 2.5V 90 T T A = 25°C RIPPLE AT f = 10kHz 90 A = 25°C 90 TA = 25°C 80 80 80 RIPPLE AT f = 10kHz 70 70 RIPPLE AT f = 100kHz 70 60 RIPPLE AT f = 100kHz 60 60 RIPPLE AT f = 1MHz PSRR (dB) 50 PSRR (dB) 50 PSRR (dB) 50 40 40 40 RIPPLE AT f = 100kHz 30 RIPPLE AT f = 1MHz 30 RIPPLE AT f = 1MHz 30 20 20 20 10 10 10 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) 3071 G34 3071 G35 3071 G36 3071fc 8 For more information www.linear.com/LT3071 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts