Datasheet LT3033 (Analog Devices) - 8
| 制造商 | Analog Devices |
| 描述 | 3A, 0.95V to 10V, Very Low Dropout Linear Regulator with Programmable Current Limit |
| 页数 / 页 | 24 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| 修订版 | A |
| 文件格式/大小 | PDF / 3.7 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. No-Load Recovery Threshold. Input Ripple Rejection
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LT3033
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. No-Load Recovery Threshold No-Load Recovery Threshold Input Ripple Rejection
30 16 100 TJ = 25°C ILOAD = 3A 14 90 CREF/BYP = 10nF 25 CFF = 10nF 80 12 VOUT = 1.2V V 20 70 IN = 1.5V+50mVRMS RIPPLE 10 60 IOUT(SINK) = 5mA 15 8 50 6 40 10 COUT = 47µF 30 OUTPUT OVERSHOOT (%) 4 I RIPPLE REJECTION (dB) C OUTPUT SINK CURRENT (mA) OUT(SINK) = 1mA OUT = 22µF 5 20 2 10 COUT = 10µF 0 0 0 0 5 10 15 20 25 30 35 40 45 50 –75 –50 –25 0 25 50 75 100 125 150 175 10 100 1k 10k 100k 1M 10M OUTPUT OVERSHOOT (%) TEMPERATURE (°C) FREQUENCY (Hz) 3033 G28 3033 G29 3033 G30
Input Ripple Rejection Input Ripple Rejection Input Ripple Rejection
100 100 100 CREF/BYP = 10nF; CFF =10nF COUT = 10µF ILOAD = 3A 10kHz 90 CREF/BYP = 10nF; CFF = 0 90 CREF/BYP = 10nF 90 COUT = 47µF 100kHz CREF/BYP = 0; CFF = 0 C C 80 FF = 10nF REF/BYP = 10nF 500kHz C 80 80 REF/BYP = 0; CFF = 10nF VOUT = 1.2V CFF = 10nF 1MHz 70 V 70 IN = 1.5V+50mVRMS RIPPLE 70 VOUT = 1.2V 2MHz 60 60 60 50 50 50 40 40 40 30 30 30 RIPPLE REJECTION (dB) I RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) LOAD = 3A I 20 LOAD = 3A C 20 20 OUT = 10µF ILOAD = 1.5A 10 VOUT = 1.2V I 10 LOAD = 0.5A 10 V ILOAD = 0.1A 0 IN = 1.5V+50mVRMS RIPPLE 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 FREQUENCY (Hz) FREQUENCY (Hz) INPUT/OUTPUT DIFFERENTIAL (V) 3033 G31 3033 G32 3033 G33
Input Ripple Rejection Line Regulation Load Regulation
100 1.0 2.0 ∆VIN = 1.14V TO 10V VIN = 1.14V 90 0.8 VOUT = 0.2V 1.6 VOUT = 0.8V 80 IL = 1mA 0.6 ∆IL = 1mA TO 3A 1.2 LOAD REGULATION NUMBER REFERS 70 0.4 0.8 TO CHANGE IN THE 200mV REFERENCE VOLTAGE 60 0.2 0.4 TION (mV) TION (mV) 50 0.0 0.0 40 –0.2 –0.4 ILOAD = 3A 30 CREF/BYP = CFF = 10nF –0.4 –0.8 RIPPLE REJECTION (dB) C LINE REGULA LOAD REGULA OUT = 10µF 20 V –0.6 –1.2 OUT = 1.2V 10 VIN = 1.5V+50mVRMS RIPPLE –0.8 –1.6 f = 120Hz 0 –1.0 –2.0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3033 G34 3033 G35 3033 G36 Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. No-Load Recovery Threshold No-Load Recovery Threshold Input Ripple Rejection
30 16 100 TJ = 25°C ILOAD = 3A 14 90 CREF/BYP = 10nF 25 CFF = 10nF 80 12 VOUT = 1.2V V 20 70 IN = 1.5V+50mVRMS RIPPLE 10 60 IOUT(SINK) = 5mA 15 8 50 6 40 10 COUT = 47µF 30 OUTPUT OVERSHOOT (%) 4 I RIPPLE REJECTION (dB) C OUTPUT SINK CURRENT (mA) OUT(SINK) = 1mA OUT = 22µF 5 20 2 10 COUT = 10µF 0 0 0 0 5 10 15 20 25 30 35 40 45 50 –75 –50 –25 0 25 50 75 100 125 150 175 10 100 1k 10k 100k 1M 10M OUTPUT OVERSHOOT (%) TEMPERATURE (°C) FREQUENCY (Hz) 3033 G28 3033 G29 3033 G30
Input Ripple Rejection Input Ripple Rejection Input Ripple Rejection
100 100 100 CREF/BYP = 10nF; CFF =10nF COUT = 10µF ILOAD = 3A 10kHz 90 CREF/BYP = 10nF; CFF = 0 90 CREF/BYP = 10nF 90 COUT = 47µF 100kHz CREF/BYP = 0; CFF = 0 C C 80 FF = 10nF REF/BYP = 10nF 500kHz C 80 80 REF/BYP = 0; CFF = 10nF VOUT = 1.2V CFF = 10nF 1MHz 70 V 70 IN = 1.5V+50mVRMS RIPPLE 70 VOUT = 1.2V 2MHz 60 60 60 50 50 50 40 40 40 30 30 30 RIPPLE REJECTION (dB) I RIPPLE REJECTION (dB) RIPPLE REJECTION (dB) LOAD = 3A I 20 LOAD = 3A C 20 20 OUT = 10µF ILOAD = 1.5A 10 VOUT = 1.2V I 10 LOAD = 0.5A 10 V ILOAD = 0.1A 0 IN = 1.5V+50mVRMS RIPPLE 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 FREQUENCY (Hz) FREQUENCY (Hz) INPUT/OUTPUT DIFFERENTIAL (V) 3033 G31 3033 G32 3033 G33
Input Ripple Rejection Line Regulation Load Regulation
100 1.0 2.0 ∆VIN = 1.14V TO 10V VIN = 1.14V 90 0.8 VOUT = 0.2V 1.6 VOUT = 0.8V 80 IL = 1mA 0.6 ∆IL = 1mA TO 3A 1.2 LOAD REGULATION NUMBER REFERS 70 0.4 0.8 TO CHANGE IN THE 200mV REFERENCE VOLTAGE 60 0.2 0.4 TION (mV) TION (mV) 50 0.0 0.0 40 –0.2 –0.4 ILOAD = 3A 30 CREF/BYP = CFF = 10nF –0.4 –0.8 RIPPLE REJECTION (dB) C LINE REGULA LOAD REGULA OUT = 10µF 20 V –0.6 –1.2 OUT = 1.2V 10 VIN = 1.5V+50mVRMS RIPPLE –0.8 –1.6 f = 120Hz 0 –1.0 –2.0 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 –75 –50 –25 0 25 50 75 100 125 150 175 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3033 G34 3033 G35 3033 G36 Rev. A 8 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Package Description Revision History Typical Application Related Parts