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LT3021-1.2 Datasheet(PDF) 7 Page - Linear Technology |
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LT3021-1.2 Datasheet(HTML) 7 Page - Linear Technology |
7 / 16 page 7 LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 3021fa TYPICAL PERFOR A CE CHARACTERISTICS TEMPERATURE ( °C) –50 2.5 2.0 1.5 0.5 1.0 0 –0.5 –1.0 –1.5 –2.0 –2.5 3021 G17 25 0 –25 50 75 125 100 VIN = 1.15V VOUT = 0.5V *LOAD REGULATION NUMBER REFERS TO CHANGE IN THE 200mV REFERENCE VOLTAGE Input Ripple Rejection Input Ripple Rejection Load Regulation ∆IL = 1mA to 500mA Output Noise Spectral Density RMS Output Noise vs Load Current (10Hz to 100kHz) FREQUENCY (Hz) 10 20 30 60 50 40 70 10 1k 10k 1M 3021 G14 0 100 100k VIN = 1.5V + 50mVRMS RIPPLE VOUT = 0.5V IL = 500mA COUT = 4.7µF COUT = 22µF TEMPERATURE ( °C) –50 100 90 80 60 70 50 40 30 20 10 0 3021 G15 25 0 –25 50 75 125 100 VIN = 1.5V + 0.5VP-P RIPPLE AT 120Hz VOUT = 0.5V IL = 500mA FREQUENCY (Hz) 10 10 1 0.1 0.01 1k 100k 1M 100 10k 3021 G18 VOUT = 1.2V IL = 500mA COUT = 4.7µF LOAD CURRENT (mA) 300 250 200 150 100 50 0 0.01 1 10 100 3021 G19 0.1 VOUT = 1.2V COUT = 4.7µF No-Load Recovery Threshold OUTPUT OVERSHOOT (%) 0 18 16 12 14 10 8 6 4 2 0 3021 G20 15 10 5 20 Transient Response VOUT 50mV/DIV IOUT 500mA/DIV 50 µs/DIV 3021 G21 IOUT = 50mA TO 500mA VIN = 1.5V VOUT = 1.2V COUT = 22µF |
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