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LM3670 Datasheet(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM3670
Description  Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM3670 Datasheet(HTML) 2 Page - National Semiconductor (TI)

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Typical Application (Continued)
Connection Diagram and Package Mark Information
Pin Descriptions
Pin #
Name
Description
1V
IN
Power supply input. Connect to the input filter capacitor (Figure 1).
2
GND
Ground pin.
3
EN
Enable input.
4
FB
Feedback analog input. Connect to the output filter capacitor (Figure 1).
5
SW
Switching node connection to the internal PFET switch and NFET synchronous
rectifier. Connect to an inductor with a saturation current rating that exceeds the
750 mA max. Switch Peak Current Limit specification.
20075830
FIGURE 2. 1.2V - Adjustable Output Voltage - Typical Application Circuit
SOT23-5 Package
NS Package Number XXXX
20075802
Note: The actual physical placement of the package marking will vary from part to part.
FIGURE 3. Top View
www.national.com
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