Datasheet LT1964 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 200mA, Low Noise, Low Dropout Negative Micropower Regulator |
| 页数 / 页 | 16 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Current Limit. Input Ripple … |
| 文件格式/大小 | PDF / 230 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Current Limit. Input Ripple Rejection. LT1964-BYP. LT1964, LT1964-SD. Minimum Input Voltage
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LT1964
TYPICAL PERFORMANCE CHARACTERISTICS Current Limit Current Limit Input Ripple Rejection
–600 –600 80 I ΔV L = –200mA OUT = 100mV VIN = –7V V V 70 IN = VOUT(NOMINAL) – 1V + –500 –500 OUT = 0V 50mVRMS RIPPLE 60 CBYP = 0 –400 –400 50 –300 –300 40 COUT = 10μF 30 –200 –200 CURRENT LIMIT (mA) CURRENT LIMIT (mA) RIPPLE REJECTION (dB) 20 –100 –100 10 COUT = 1μF 0 0 0 0 –4 –8 –12 –16 –20 –50 –25 0 25 50 75 100 125 10 100 1k 10k 100k 1M INPUT/OUTPUT DIFFERENTIAL (V) TEMPERATURE (°C) FREQUENCY (Hz) 1964 G18 1964 G16 1964 G17
LT1964-BYP LT1964, LT1964-SD Input Ripple Rejection Minimum Input Voltage Minimum Input Voltage
60 –3.0 –3.0 VIN = VOUT(NOMINAL) – 1V + 58 0.5VP-P RIPPLE AT f = 120Hz –2.5 –2.5 IL = –200mA 56 –2.0 –2.0 54 IL = –200mA IL = –200mA 52 –1.5 –1.5 I 50 L = –1mA IL = –1mA –1.0 –1.0 RIPPLE REJECTION (dB) 48 NOTE: THE MINIMUM INPUT VOLTAGE MINIMUM INPUT VOLTAGE (V) ACCOUNTS FOR THE OPERATING MINIMUM INPUT VOLTAGE (V) NOTE: THE SHDN PIN THRESHOLD –0.5 –0.5 MUST BE MET TO ENSURE 46 THRESHOLD OF THE SHDN PIN WHICH IS TIED TO THE IN PIN INTERNALLY DEVICE OPERATION 44 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1964 G19 1964 G20 1964 G21 1964fb 7
TYPICAL PERFORMANCE CHARACTERISTICS Current Limit Current Limit Input Ripple Rejection
–600 –600 80 I ΔV L = –200mA OUT = 100mV VIN = –7V V V 70 IN = VOUT(NOMINAL) – 1V + –500 –500 OUT = 0V 50mVRMS RIPPLE 60 CBYP = 0 –400 –400 50 –300 –300 40 COUT = 10μF 30 –200 –200 CURRENT LIMIT (mA) CURRENT LIMIT (mA) RIPPLE REJECTION (dB) 20 –100 –100 10 COUT = 1μF 0 0 0 0 –4 –8 –12 –16 –20 –50 –25 0 25 50 75 100 125 10 100 1k 10k 100k 1M INPUT/OUTPUT DIFFERENTIAL (V) TEMPERATURE (°C) FREQUENCY (Hz) 1964 G18 1964 G16 1964 G17
LT1964-BYP LT1964, LT1964-SD Input Ripple Rejection Minimum Input Voltage Minimum Input Voltage
60 –3.0 –3.0 VIN = VOUT(NOMINAL) – 1V + 58 0.5VP-P RIPPLE AT f = 120Hz –2.5 –2.5 IL = –200mA 56 –2.0 –2.0 54 IL = –200mA IL = –200mA 52 –1.5 –1.5 I 50 L = –1mA IL = –1mA –1.0 –1.0 RIPPLE REJECTION (dB) 48 NOTE: THE MINIMUM INPUT VOLTAGE MINIMUM INPUT VOLTAGE (V) ACCOUNTS FOR THE OPERATING MINIMUM INPUT VOLTAGE (V) NOTE: THE SHDN PIN THRESHOLD –0.5 –0.5 MUST BE MET TO ENSURE 46 THRESHOLD OF THE SHDN PIN WHICH IS TIED TO THE IN PIN INTERNALLY DEVICE OPERATION 44 0 0 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 –50 –25 0 25 50 75 100 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 1964 G19 1964 G20 1964 G21 1964fb 7