Datasheet LT3070 (Analog Devices) - 9

LT3070
TYPICAL PERFORMANCE CHARACTERISTICS Current Limit vs V BIAS Pin Ripple Rejection IN Pin Ripple Rejection IN – VOUT
8 100 80 VBIAS = 3.3V VIN = 1.3V 7 TJ = 25°C 90 VOUT = 1V 70 I 80 OUT = 5A 6 COUT = 10µF + 4.7µF + 2.2µF 60 70 5 60 50 4 50 40 3 40 30 COUT = 117µF CURRENT LIMIT (A) 30 COUT = 16.9µF 2 20 VOUT = 1V V 20 OUT = 1.8V VBIAS = 2.5V + 500mVP-P IN PIN RIPPLE REJECTION (dB) V 1 IN = 1.3V + 50mVP-P RIPPLE V BIAS PIN RIPPLE REJECTION (dB) OUT = 1.2V 10 VBIAS = 2.7V + 500mVP-P 10 VBIAS = 2.5V VOUT = 0.8V VBIAS = 3.3V + 500mVP-P IOUT = 1A 0 0 0 0 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M IN-TO-OUT VOLTAGE DIFFERENTIAL (V) FREQUENCY (Hz) FREQUENCY (Hz) 3070 G28 3070 G29 3070 G30
IN Pin Ripple Rejection IN Pin Ripple Rejection IN Pin Ripple Rejection vs VIN – VOUT , 1V/5A vs VIN – VOUT , 1V/2.5A
80 120 120 50mV 110 P-P RIPPLE ON VIN 110 50mVP-P RIPPLE ON VIN 70 COUT = 16.9μF C 100 OUT = 16.9μF VBIAS = 2.5V 100 VBIAS = 2.5V 60 90 TA = 25°C 90 TA = 25°C RIPPLE AT f = 10kHz 80 RIPPLE AT f = 10kHz 80 50 70 70 40 60 60 RIPPLE AT f = 100kHz PSRR (dB) 50 PSRR (dB) 50 30 COUT = 117µF C 40 RIPPLE AT f = 100kHz 40 OUT = 16.9µF RIPPLE AT f = 1MHz 20 V 30 30 OUT = 1V IN PIN RIPPLE REJECTION (dB) VIN = 1.3V + 50mVP-P RIPPLE 20 RIPPLE AT f = 1MHz 20 10 VBIAS = 2.5V 10 10 IOUT = 5A 0 0 0 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 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) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) AVERAGE INPUT/OUTPUT DIFFERENTIAL (V) 3070 G32 3070 G33 3070 G31
IN Pin Ripple Rejection IN Pin Ripple Rejection IN Pin Ripple Rejection vs VIN – VOUT , 1V/1A vs VIN – VOUT , 1V/5A vs VIN – VOUT , 1V/2.5A
120 120 120 50mV 110 P-P RIPPLE ON VIN 50mVP-P RIPPLE ON VIN 50mVP-P RIPPLE ON VIN C 110 110 OUT = 16.9μF C COUT = 117μF 100 OUT = 117μF VBIAS = 2.5V RIPPLE AT f = 10kHz 100 V 100 BIAS = 2.5V VBIAS = 2.5V 90 TA = 25°C 90 TA = 25°C 90 TA = 25°C 80 80 80 RIPPLE AT f = 10kHz RIPPLE AT f = 10kHz 70 RIPPLE AT f = 100kHz 70 70 60 60 RIPPLE AT f = 1MHz 60 PSRR (dB) 50 PSRR (dB) 50 PSRR (dB) 50 RIPPLE AT f = 1MHz 40 40 RIPPLE AT f = 100kHz 40 RIPPLE AT f = 100kHz 30 RIPPLE AT f = 1MHz 30 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) 3070 G34 3070 G35 3070 G36 3070fc For more information www.linear.com/LT3070 9 Document Outline Features Applications Description 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