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LTM4657 датащи(PDF) 20 Page - Analog Devices |
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LTM4657 датащи(HTML) 20 Page - Analog Devices |
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20 / 28 page ![]() LTM4657 20 Rev. A For more information www.analog.com APPLICATIONS INFORMATION Figure 19. 12V to 3.3V Derating Curve, No Heat Sink Figure 20. 12V to 5V Derating Curve, No Heat Sink Figure 18. 5V to 3.3V Derating Curve, No Heat Sink Table 3. 1.0V Output DERATING CURVE VIN (V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK θJA(°C/W) Figure 14, Figure 15 5, 12 Figure 10 0 None 17 Figure 14, Figure 15 5, 12 Figure 10 200 None 14.5 Figure 14, Figure 15 5, 12 Figure 10 400 None 13.5 Table 4. 1.5V Output DERATING CURVE VIN (V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK θJA(°C/W) Figure 16, Figure 17 5, 12 Figure 11 0 None 17 Figure 16, Figure 17 5, 12 Figure 11 200 None 14.5 Figure 16, Figure 17 5, 12 Figure 11 400 None 13.5 Table 5. 3.3V Output DERATING CURVE VIN (V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK θJA(°C/W) Figure 18, Figure 19 5, 12 Figure 12 0 None 17 Figure 18, Figure 19 5, 12 Figure 12 200 None 14.5 Figure 18, Figure 19 5, 12 Figure 12 400 None 13.5 Table 6. 5V Output DERATING CURVE VIN (V) POWER LOSS CURVE AIR FLOW (LFM) HEAT SINK θJA(°C/W) Figure 20 12 Figure 13 0 None 17 Figure 20 12 Figure 13 200 None 14.5 Figure 20 12 Figure 13 400 None 13.5 TA (°C) 0 9 8 6 4 2 7 5 3 1 0 80 40 4657 F18 120 60 20 100 0LFM 200LFM 400LFM TA (°C) 0 9 8 6 4 2 7 5 3 1 0 80 40 4657 F19 120 60 20 100 0LFM 200LFM 400LFM TA (°C) 0 9 8 6 4 2 7 5 3 1 0 80 40 4657 F20 120 60 20 100 0LFM 200LFM 400LFM |
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