LM3670_06 Datasheet, PDF (2/17 Pages) National Semiconductor (TI) – Miniature Step-Down DC-DC Converter for Ultra Low Voltage Circuits

Typical Application (Continued)
20075830
FIGURE 2. Adjustable Output Voltage - Typical Application Circuit
Connection Diagram and Package Mark Information
SOT23-5 Package
NS Package Number MF05A
20075802
Note: The actual physical placement of the package marking will vary from part to part.
FIGURE 3. Top View
Pin Descriptions
Pin #
1
2
3
4
5
Name
V_IN
GND
EN
FB
SW
Description
Power supply input. Connect to the input filter capacitor (Figure 1).
Ground pin.
Enable input.
Feedback analog input. Connect to the output filter capacitor (Figure 1).
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.
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