Datasheet LT3071 (Analog Devices) - 10
| 制造商 | Analog Devices |
| 描述 | 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator with Analog Margining |
| 页数 / 页 | 30 / 10 — TYPICAL PERFORMANCE CHARACTERISTICS. Output Voltage Start-Up Time. Input … |
| 文件格式/大小 | PDF / 1.1 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Output Voltage Start-Up Time. Input Voltage Line Regulation. vs CREF/BYP
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LT3071
TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage Start-Up Time Input Voltage Line Regulation vs CREF/BYP Nap Mode Recovery Time vs IOUT
300 20 400 V V BIAS = 3.3V VBIAS = 2.5V TO 3.3V BIAS = 3.3V V V IN = 2.05V TO 2.7V 18 IOUT = 10mA 350 IN = VOUT(NOM) + 300mV 250 V EN = LOW TO HIGH OUT = 1.8V COUT = 10µF + 4.7µF + 2.2µF I 16 I OUT = 10mA TJ = 25°C 300 OUT = 5A (SET BY A RESISTOR LOAD) 14 SEE APPLICATIONS TJ = 25°C 200 INFORMATION FOR V 12 Y TIME (µs) 250 OUT = 1.8V, START-UP DETAILS COUT = 117µF 150 10 200 VOUT = 1.2V, COUT = 117µF 8 150 VOUT = 0.8V, 100 C 6 OUT = 117µF 100 50 4 NAP MODE RECOVER 50 INPUT VOLTAGE LINE REGULATION (µV) OUTPUT VOLTAGE START-UP TIME (ms) 2 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 175 0 0.1 0.2 0.3 0.4 0.5 0 1 2 3 4 5 TEMPERATURE (°C) REF/BYP CAPACITANCE (µF) OUTPUT CURRENT (A) 3071 G46 3071 G47 3071 G48
RMS Output Noise Output Noise Spectral Density vs Output Current Output Noise (10Hz to 100kHz)
1.0 80 VBIAS = 2.5V VIN = VOUT(NOMINAL) + 300mV ) VOUT = 1V 70 VBIAS = 3.3V Hz IOUT = 5A COUT = 16.9µF V/√ COUT = 16.9µF ) 60 Y (µ C 0.1 REF/BYP = 0.01µF V RMS 50 VOUT 100µV/DIV 40 30 0.01 OUTPUT NOISE (µ 20 VOUT = 1.8V 3071 G51 NOISE SPECTRAL DENSIT 10 V VOUT = 1V 1ms/DIV OUT = 1.2V V I OUT = 0.8V OUT = 5A 0.001 0 COUT = 16.9µF 10 100 1k 10k 100k 0.01 0.1 1 10 FREQUENCY (Hz) OUTPUT CURRENT (A) 3071 G49 3071 G50
Input Voltage Line Transient Bias Voltage Line Transient VIOC Amplifier IN-to-OUT Response Response Servo Voltage
350 VBIAS = 2.5V 340 VOUT 10mV/DIV 330 VOUT 1mV/DIV 320 310 VIN 300 50mV/DIV VBIAS 290 200mV/DIV 280 270 V 3071 G52 IN = 1.3V 20µs/DIV V 3071 G53 IN = 1.3V 20µs/DIV V V OUT = 1V BIAS = 2.5V VIOC IN-TO-OUT SERVO VOLTAGE (mV) 260 I V OUT = 5A OUT = 1V 250 C I OUT = 16.9µF OUT = 5A –75 –50 –25 0 25 50 75 100 125 150 175 COUT = 16.9µF TEMPERATURE (°C) 3071 G54 3071fc 10 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 Output Voltage Start-Up Time Input Voltage Line Regulation vs CREF/BYP Nap Mode Recovery Time vs IOUT
300 20 400 V V BIAS = 3.3V VBIAS = 2.5V TO 3.3V BIAS = 3.3V V V IN = 2.05V TO 2.7V 18 IOUT = 10mA 350 IN = VOUT(NOM) + 300mV 250 V EN = LOW TO HIGH OUT = 1.8V COUT = 10µF + 4.7µF + 2.2µF I 16 I OUT = 10mA TJ = 25°C 300 OUT = 5A (SET BY A RESISTOR LOAD) 14 SEE APPLICATIONS TJ = 25°C 200 INFORMATION FOR V 12 Y TIME (µs) 250 OUT = 1.8V, START-UP DETAILS COUT = 117µF 150 10 200 VOUT = 1.2V, COUT = 117µF 8 150 VOUT = 0.8V, 100 C 6 OUT = 117µF 100 50 4 NAP MODE RECOVER 50 INPUT VOLTAGE LINE REGULATION (µV) OUTPUT VOLTAGE START-UP TIME (ms) 2 0 0 0 –75 –50 –25 0 25 50 75 100 125 150 175 0 0.1 0.2 0.3 0.4 0.5 0 1 2 3 4 5 TEMPERATURE (°C) REF/BYP CAPACITANCE (µF) OUTPUT CURRENT (A) 3071 G46 3071 G47 3071 G48
RMS Output Noise Output Noise Spectral Density vs Output Current Output Noise (10Hz to 100kHz)
1.0 80 VBIAS = 2.5V VIN = VOUT(NOMINAL) + 300mV ) VOUT = 1V 70 VBIAS = 3.3V Hz IOUT = 5A COUT = 16.9µF V/√ COUT = 16.9µF ) 60 Y (µ C 0.1 REF/BYP = 0.01µF V RMS 50 VOUT 100µV/DIV 40 30 0.01 OUTPUT NOISE (µ 20 VOUT = 1.8V 3071 G51 NOISE SPECTRAL DENSIT 10 V VOUT = 1V 1ms/DIV OUT = 1.2V V I OUT = 0.8V OUT = 5A 0.001 0 COUT = 16.9µF 10 100 1k 10k 100k 0.01 0.1 1 10 FREQUENCY (Hz) OUTPUT CURRENT (A) 3071 G49 3071 G50
Input Voltage Line Transient Bias Voltage Line Transient VIOC Amplifier IN-to-OUT Response Response Servo Voltage
350 VBIAS = 2.5V 340 VOUT 10mV/DIV 330 VOUT 1mV/DIV 320 310 VIN 300 50mV/DIV VBIAS 290 200mV/DIV 280 270 V 3071 G52 IN = 1.3V 20µs/DIV V 3071 G53 IN = 1.3V 20µs/DIV V V OUT = 1V BIAS = 2.5V VIOC IN-TO-OUT SERVO VOLTAGE (mV) 260 I V OUT = 5A OUT = 1V 250 C I OUT = 16.9µF OUT = 5A –75 –50 –25 0 25 50 75 100 125 150 175 COUT = 16.9µF TEMPERATURE (°C) 3071 G54 3071fc 10 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