LM3674MF-1.5EV National Semiconductor, LM3674MF-1.5EV Datasheet

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... The LM3674 converts high input voltages to lower output volt- ages with high efficiency through an inductor based switching Typical Application FIGURE 1. Typical Application Circuit: Fixed Voltage FIGURE 2. Typical Application Circuit: Adjustable Voltage © 2008 National Semiconductor Corporation National Semiconductor Application Note 1427 Jose Escobar October 14, 2008 topology ...

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... Output Voltage Selection for LM3674MF-ADJ The output voltage of the adjustable parts can be pro- grammed through the resistor network connected from GND. The resistor from FB to GND (R 200 kΩ to keep the current drawn through this network small, but large enough that it is not susceptible to noise kΩ ...

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Connection Diagram and Package Mark Information Pin Descriptions (SOT23-5) Pin# Name Description 1 V Power supply input. Connect to the input filter capacitor (Figure GND Ground pin 3 EN Enable input. The device is in shutdown mode ...

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Evaluation Board Layout www.national.com FIGURE 4. Top Layer (SOT23-5) FIGURE 5. Bottom Layer (SOT23-5) 4 20174617 20174623 ...

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... BOM For Common Configurations Manufacture LM3674MF - 1.5V & 1.8V FIXED C1 (input C) TDK C2 (output C) TDK L1 (inductor) Coilcraft Vishay OUT GND) None None OUT GND) None FB LM3674MF - 3.3V ADJUSTABLE C1 (input C) TDK C2 (output C) TDK L1 (inductor) Coilcraft Vishay OUT GND) Vishay Vishay OUT GND) Vishay ...

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