LM3670MF-1.2/NOPB National Semiconductor, LM3670MF-1.2/NOPB Datasheet - Page 2
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LM3670MF-1.2/NOPB
Manufacturer Part Number
LM3670MF-1.2/NOPB
Description
IC CONV DC/DC STEP-DOWN SOT23-5
Manufacturer
National Semiconductor
Series
PowerWise®r
Type
Step-Down (Buck)r
Datasheet
1.LM3670MFX-ADJNOPB.pdf
(17 pages)
Specifications of LM3670MF-1.2/NOPB
Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
1.2V
Current - Output
350mA
Frequency - Switching
1MHz
Voltage - Input
2.5 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
For Use With
LM3670MF-1.2EV - BOARD EVALUATION LM3670MF-1.2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Other names
LM3670MF-1.2
LM3670MF-1.2TR
LM3670MF-1.2TR
www.national.com
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