Datasheet LT3072 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Dual, Low Noise, 2.5A Programmable Output, 80mV Low Dropout Linear Regulator |
| Pages / Page | 28 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. BIAS Pin Ripple Rejection,. BIAS Pin … |
| File Format / Size | PDF / 2.5 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. BIAS Pin Ripple Rejection,. BIAS Pin Ripple Rejection vs. Internal Current Limit
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LT3072
TYPICAL PERFORMANCE CHARACTERISTICS BIAS Pin Ripple Rejection, BIAS Pin Ripple Rejection vs Internal Current Limit 1.2V/2.5A VBIAS – VOUT, 1.2V/2.5A
4.2 90 90 VIN = 0.9V VOUT = 0V 4.0 80 80 70 70 3.8 60 60 3.6 50 50 3.4 40 VIN = 1.5V 40 COUT = 10µF CURRENT LIMIT (A) 30 V 30 3.2 TEMP = 0.25V 20 VIN = 1.5V 20 100kHz V C 3.0 BIAS = 5V + 50mVRMS RIPPLE BIAS PIN RIPPLE REJECTION (dB) OUT = 10µF BIAS PIN RIPPLE REJECTION (dB) 500kHz VBIAS = 5.25V 10 VBIAS = 3.3V + 50mVRMS RIPPLE 10 VTEMP = 0.25V 1MHz VBIAS = 2.375V VBIAS = 2.5V + 50mVRMS RIPPLE 50mVRMS RIPPLE ON VBIAS 2MHz 2.8 0 0 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k 1M 10M 1 1.5 2 2.5 3 3.5 4 TEMPERATURE (°C) FREQUENCY (Hz) BIAS–TO–OUT VOLTAGE DIFFERENTIAL (V) 3072 G37 3072 G38 3072 G39
IN Pin Ripple Rejection, IN Pin Ripple Rejection, IN Pin Ripple Rejection vs 1.2V/2.5A 1.2V/1A VIN – VOUT, 1.2V/2.5A
90 90 90 50mVRMS RIPPLE ON VIN 80 80 80 VBIAS = 2.5V COUT = 10µF 70 70 70 VTEMP = 0.25V 60 60 60 50 50 50 40 40 40 30 COUT = 10µF + 2× 47µF 30 COUT = 10µF + 2× 47µF 30 COUT = 10µF COUT = 10µF 20 20 20 100kHz IN PIN RIPPLE REJECTION (dB) VIN = 1.5V + 50mVRMS RIPPLE IN PIN RIPPLE REJECTION (dB) VIN = 1.5V + 50mVRMS RIPPLE IN PIN RIPPLE REJECTION (dB) 500kHz 10 VBIAS = 2.5V 10 VBIAS = 2.5V 10 1MHz VTEMP = 0.25V VTEMP = 0.25V 2MHz 0 0 0 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M 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) IN–TO–OUT VOLTAGE DIFFERENTIAL (V) 3072 G40 3072 G41 3072 G42
IN Pin Ripple Rejection vs VIN – VOUT, 1.2V/1A Channel-to-Channel Isolation Minimum VBIAS – VOUT Voltage
90 100 1.2 50mVRMS RIPPLE ON VIN CHANNEL 1 VIN = VOUT(NOMINAL) + 0.3V 80 V 1.1 BIAS = 2.5V 90 CHANNEL 2 ∆V C OUT = –1% OUT = 10µF 1.0 70 V 80 TEMP = 0.25V TION (dB) 0.9 70 60 0.8 60 50 0.7 50 0.6 40 VOUT = 1.2V 40 0.5 V 30 IN = 1.5V 0.4 30 VBIAS = 2.5V 20 100kHz VTEMP = 0.25V 0.3 IN PIN RIPPLE REJECTION (dB) 20 500kHz COUT = 10µF 0.2 IOUT = 2.5A 10 1MHz I 10 OUT1 = IOUT2 = 2.5A I CHANNEL–TO–CHANNEL ISOLA OUT = 1.0A 0.1 2MHz 50mVRMS RIPPLE ON OPPOSING CHANNEL MINIMUM BIAS–TO–OUT DIFFERENTIAL (V) IOUT = 100mA 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 10 100 1k 10k 100k 1M 10M –50 –25 0 25 50 75 100 125 150 IN–TO–OUT VOLTAGE DIFFERENTIAL (V) FREQUENCY (Hz) TEMPERATURE (°C) 3072 G43 3072 G44 3072 G45 Rev. 0 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS BIAS Pin Ripple Rejection, BIAS Pin Ripple Rejection vs Internal Current Limit 1.2V/2.5A VBIAS – VOUT, 1.2V/2.5A
4.2 90 90 VIN = 0.9V VOUT = 0V 4.0 80 80 70 70 3.8 60 60 3.6 50 50 3.4 40 VIN = 1.5V 40 COUT = 10µF CURRENT LIMIT (A) 30 V 30 3.2 TEMP = 0.25V 20 VIN = 1.5V 20 100kHz V C 3.0 BIAS = 5V + 50mVRMS RIPPLE BIAS PIN RIPPLE REJECTION (dB) OUT = 10µF BIAS PIN RIPPLE REJECTION (dB) 500kHz VBIAS = 5.25V 10 VBIAS = 3.3V + 50mVRMS RIPPLE 10 VTEMP = 0.25V 1MHz VBIAS = 2.375V VBIAS = 2.5V + 50mVRMS RIPPLE 50mVRMS RIPPLE ON VBIAS 2MHz 2.8 0 0 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k 1M 10M 1 1.5 2 2.5 3 3.5 4 TEMPERATURE (°C) FREQUENCY (Hz) BIAS–TO–OUT VOLTAGE DIFFERENTIAL (V) 3072 G37 3072 G38 3072 G39
IN Pin Ripple Rejection, IN Pin Ripple Rejection, IN Pin Ripple Rejection vs 1.2V/2.5A 1.2V/1A VIN – VOUT, 1.2V/2.5A
90 90 90 50mVRMS RIPPLE ON VIN 80 80 80 VBIAS = 2.5V COUT = 10µF 70 70 70 VTEMP = 0.25V 60 60 60 50 50 50 40 40 40 30 COUT = 10µF + 2× 47µF 30 COUT = 10µF + 2× 47µF 30 COUT = 10µF COUT = 10µF 20 20 20 100kHz IN PIN RIPPLE REJECTION (dB) VIN = 1.5V + 50mVRMS RIPPLE IN PIN RIPPLE REJECTION (dB) VIN = 1.5V + 50mVRMS RIPPLE IN PIN RIPPLE REJECTION (dB) 500kHz 10 VBIAS = 2.5V 10 VBIAS = 2.5V 10 1MHz VTEMP = 0.25V VTEMP = 0.25V 2MHz 0 0 0 10 100 1k 10k 100k 1M 10M 10 100 1k 10k 100k 1M 10M 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) IN–TO–OUT VOLTAGE DIFFERENTIAL (V) 3072 G40 3072 G41 3072 G42
IN Pin Ripple Rejection vs VIN – VOUT, 1.2V/1A Channel-to-Channel Isolation Minimum VBIAS – VOUT Voltage
90 100 1.2 50mVRMS RIPPLE ON VIN CHANNEL 1 VIN = VOUT(NOMINAL) + 0.3V 80 V 1.1 BIAS = 2.5V 90 CHANNEL 2 ∆V C OUT = –1% OUT = 10µF 1.0 70 V 80 TEMP = 0.25V TION (dB) 0.9 70 60 0.8 60 50 0.7 50 0.6 40 VOUT = 1.2V 40 0.5 V 30 IN = 1.5V 0.4 30 VBIAS = 2.5V 20 100kHz VTEMP = 0.25V 0.3 IN PIN RIPPLE REJECTION (dB) 20 500kHz COUT = 10µF 0.2 IOUT = 2.5A 10 1MHz I 10 OUT1 = IOUT2 = 2.5A I CHANNEL–TO–CHANNEL ISOLA OUT = 1.0A 0.1 2MHz 50mVRMS RIPPLE ON OPPOSING CHANNEL MINIMUM BIAS–TO–OUT DIFFERENTIAL (V) IOUT = 100mA 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 10 100 1k 10k 100k 1M 10M –50 –25 0 25 50 75 100 125 150 IN–TO–OUT VOLTAGE DIFFERENTIAL (V) FREQUENCY (Hz) TEMPERATURE (°C) 3072 G43 3072 G44 3072 G45 Rev. 0 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Typical Application Related Parts
