LM3673TL-1.5EV National Semiconductor, LM3673TL-1.5EV Datasheet - Page 2
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LM3673TL-1.5EV
Manufacturer Part Number
LM3673TL-1.5EV
Description
BOARD EVALUATION LM3673TL-1.5
Manufacturer
National Semiconductor
Series
PowerWise®r
Specifications of LM3673TL-1.5EV
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.5V
Current - Output
350mA
Voltage - Input
2.7 ~ 5.5V
Regulator Topology
Buck
Frequency - Switching
2MHz
Board Type
Fully Populated
Utilized Ic / Part
LM3673
Lead Free Status / RoHS Status
Not applicable / Not applicable
Power - Output
-
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Connection Diagram and Package Mark Information
Pin Descriptions (5-Bump MicroSMD)
Pin #
C1
C3
A1
A3
B2
FIGURE 3. 5-Bump MicroSMD Package NS Package Number TLA05CBA
Name
GND
SW
V
EN
FB
IN
FIGURE 2. Typical Application Circuit for ADJ version
Description
Power supply input. Connect to the input filter capacitor (Figure 1).
Ground pin.
Enable pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled
when >1.0V. Do not leave this pin floating.
Feedback analog input. Connect directly to the output filter capacitor for fixed voltage
versions. For adjustable version external resistor dividers are required (Figure 2). The
internal resistor dividers are disabled for the adjustable version.
Switching node connection to the internal PFET switch and NFET synchronous rectifier.
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20183344