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LM2854 데이터시트(PDF) 5 Page - Texas Instruments |
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LM2854 데이터시트(HTML) 5 Page - Texas Instruments |
5 / 30 page -50 -25 0 25 50 75 100 125 TEMPERATURE (°C) 400 500 600 700 800 900 1000 1100 1200 500 kHz 1 MHz 20 25 30 35 40 45 50 55 60 -50 -25 0 25 50 75 100 125 TEMPERATURE (°C) VIN = 3.3V VIN = 5.0V 1.6 1.7 1.8 1.9 2.0 2.1 -50 -25 0 25 50 75 100 TEMPERATURE (°C) 125 -50 -25 0 25 50 75 100 TEMPERATURE (°C) 1.175 1.200 1.225 1.250 125 -50 -25 0 25 50 75 100 125 TEMPERATURE (°C) 0.795 0.796 0.797 0.798 0.799 0.800 0.801 0.802 2.45 2.65 -50 -25 0 25 50 75 100 TEMPERATURE (°C) 125 2.50 2.55 2.60 LM2854 www.ti.com SNVS560B – MARCH 2008 – REVISED NOVEMBER 2008 Typical Performance Characteristics Unless otherwise specified, the following conditions apply: VIN = PVIN = AVIN = EN = 5.0V, CIN is 47 µF 10V X5R ceramic capacitor, LO is from TDK SPM6530T family; TAMBIENT = 25°C for efficiency curves, bode plots and waveforms, and TJ = 25°C for all others. Feedback Voltage vs. Temperature UVLO Threshold vs. Temperature Figure 2. Figure 3. Soft Start Current vs Temperature Enable Threshold vs. Temperature Figure 4. Figure 5. Switching Frequency vs. Temperature PMOS RDS(ON) vs. Temperature Figure 6. Figure 7. Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM2854 |
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