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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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RT7257B датащи(PDF) 7 Page - Richtek Technology Corporation |
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RT7257B датащи(HTML) 7 Page - Richtek Technology Corporation |
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7 / 14 page  RT7257B 7 DS7257B-03 September 2012 www.richtek.com © Copyright 2012 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. Time (500ns/Div) Switching VSW (10V/Div) VOUT (5mV/Div) IL (2A/Div) VIN = 12V, VOUT = 3.3V, IOUT = 1.5A Time (500ns/Div) Switching VIN = 12V, VOUT = 3.3V, IOUT = 3A VSW (10V/Div) VOUT (5mV/Div) IL (2A/Div) Time (100 μs/Div) Load Transient Response VOUT (100mV/Div) IOUT (2A/Div) VIN = 12V, VOUT = 3.3V, IOUT = 1.5A to 3A Current Limit vs. Temperature 2 3 4 5 6 7 8 -50-25 0 25 50 75100 125 Temperature (°C) VIN = 12V, VOUT = 3.3V Output Current Limit vs. Input Voltage 0 1 2 3 4 5 6 4.5 7 9.5 12 14.5 17 Input Voltage (V) VIN = 12V VOUT = 1.2V VOUT = 3.3V Add Bootstrap Diode VOUT = 3.3V Time (100 μs/Div) Load Transient Response VOUT (100mV/Div) IOUT (2A/Div) VIN = 12V, VOUT = 3.3V, IOUT = 0.2A to 3A |
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