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K78L12-500 Datasheet(PDF) 3 Page - MORNSUN Science& Technology Ltd. |
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K78L12-500 Datasheet(HTML) 3 Page - MORNSUN Science& Technology Ltd. |
3 / 5 page The copyright and authority for the interpretation of the products are reserved by MORNSUN Specifications subject to change without notice. K78LXX-500 B/0-2012 Page 3 of 5 OUTPUT RIPPLE REDUCTION To reduce output ripple, it is recommended to add a LC filter in output port. L: Recommended parameter 10 μH ~ 47μH. 3 +Vin G ND +Vout 1 DC/DC Con verter C1 2 2F μ 2 C2 L (figure 5) CHARACTERISTIC CURVE (TA=25 °C) 1 Efficiency and Output Voltage Ripple Efficiency VS Load(Vin=rating) 0 10 20 30 40 50 60 70 80 90 100 20 40 60 100 140 180 220 260 300 340 380 420 460 500 550 Load(mA) Efficiency(%) K78L03-500 K78L05-500 K78LX6-500 K78L09-500 K78L12-500 K78L15-500 0 5 10 15 20 25 30 35 40 45 50 20 60 100 140 180 220 260 300 340 380 420 460 500 550 Load Ripple(mV) K78L03-500 K78L05-500 K78LX6-500 K78L09-500 K78L12-500 K78L15-500 Efficiency VS Output Load (Vin=Norm) Output Voltage Ripple VS Output Load (Vin=Norm) Efficiency VS Vin(Full Load) 45 50 55 60 65 70 75 80 85 90 95 100 4.5 6.5 8 10 11 12 15 16 18 20 22 24 26 28 30 Vin(V) Efficiency(%) K78L03-500 K78L05-500 K78LX6-500 K78L09-500 K78L12-500 K78L15-500 Ripple VS Vin(Full Load) 0 5 10 15 20 25 30 35 40 45 50 4.5 6.5 8 10 11 12 15 18 20 22 24 26 28 30 Vin(V) Ripple(mV) K78L03-500 K78L05-500 K78LX6-500 K78L09-500 K78L12-500 K78L15-500 Efficiency VS Input Voltage (Full Load) Output Voltage Ripple VS Input Voltage (Full Load) 2 Start-up Waveform K78L03-500 K78L05-500 Vin=12Vdc, Out=3.3V/500mA, Cin=10 μF, Co=22μF Vin=12Vdc, Out=5V/500mA , Cin =10 μF, Co=22μF CH1:1V/div, Time:5ms/div CH1:1V/div, Time:5ms/div |
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