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LT1129IT-5 Datasheet(PDF) 8 Page - Linear Technology |
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LT1129IT-5 Datasheet(HTML) 8 Page - Linear Technology |
8 / 16 page LT1129/LT1129-3.3/LT1129-5 8 112935ff TYPICAL PERFORMANCE CHARACTERISTICS Reverse Output Current Current Limit Current Limit Reverse Output Current Ripple Rejection Ripple Rejection INPUT VOLTAGE (V) 0 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 2 4 5 112935 G23 1 3 6 7 VOUT = 0V TEMPERATURE (°C) –50 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 50 75 112935 G24 –25 25 100 125 VIN = 7V VOUT = 0V OUTPUT VOLTAGE (V) 0 100 90 80 70 60 50 40 30 20 10 0 8 112935 G25 2 4 6 10 13 57 9 TJ = 25°C, VIN = 0V VOUT = VSENSE (LT1129-3.3/LT1129-5) VOUT = VADJ (LT1129) CURRENT FLOWS INTO DEVICE LT1129-3.3 LT1129 LT1129-5 TEMPERATURE (°C) –50 70 68 66 64 62 60 58 56 0 50 75 112935 G26 –25 25 100 125 (VIN – VOUT)AVG = 1V VRIPPLE = 0.5VP-P IL = 0.7A FREQUENCY (Hz) 100 90 80 70 60 50 40 30 20 10 0 10 1k 10k 1M 112935 G27 100 100k IOUT = 500mA VIN = 6V + 50mVRMS RIPPLE COUT = 47μF SOLID TANTALUM COUT = 3.3μF SOLID TANTALUM TEMPERATURE (°C) –50 30 25 20 15 10 5 0 0 50 75 112935 G22 –25 25 100 125 VIN = 0V VOUT = VSENSE = 5V (LT1129-5) VOUT = VSENSE = 3.3V (LT1129-3.3) VOUT = VADJ = 3.75V (LT1129) LT1129-5 Transient Response Load Regulation LT1129-5 Transient Response TEMPERATURE (°C) –50 0 –5 –10 –15 –20 –25 –30 0 50 75 112935 G28 –25 25 100 125 LT1129* LT1129-3.3 LT1129-5 VIN = VOUT(NOMINAL) + 1V ΔILOAD = 1mA to 700mA *VADJ = VOUT TIME (μs) 0 0.10 0.05 0 –0.05 –0.10 400 112935 G29 50 200 300 500 0.6 0.5 100 150 250 350 450 VIN = 6V CIN = 3.3μF COUT = 3.3μF TIME (ms) 0 0.2 0.1 0 –0.1 –0.2 1.6 112935 G30 0.2 0.8 1.2 2.0 0.7 0.5 0.3 0.1 0.4 0.6 1.0 1.4 1.8 VIN = 6V CIN = 3.3μF COUT = 47μF |
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