LM3670MF-1.2EV National Semiconductor, LM3670MF-1.2EV Datasheet - Page 2

• Manufacturer Part Number: LM3670MF-1.2EV
• Description: BOARD EVALUATION LM3670MF-1.2
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3670MF-1.2EV

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.2V
• Current - Output: 350mA
• Voltage - Input: 2.5 ~ 5.5V
• Regulator Topology: Buck
• Frequency - Switching: 1MHz
• Board Type: Fully Populated
• Utilized Ic / Part: LM3670
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Not Compliant

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Typical Application
Connection Diagram and Package Mark Information
Note: The actual physical placement of the package marking will vary from part to part.
Pin Descriptions
Pin #
1
2
3
4
5
Name
GND
FIGURE 2. Adjustable Output Voltage - Typical Application Circuit
SW
V
EN
FB
IN
(Continued)
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.
NS Package Number MF05A
FIGURE 3. Top View
SOT23-5 Package
2
20075802
20075830