LM3671MF-1.25 National Semiconductor, LM3671MF-1.25 Datasheet - Page 3

• Manufacturer Part Number: LM3671MF-1.25
• Description: DC/DC CONVERTER, 1.25V, SMD, 3671
• Manufacturer: National Semiconductor

Specifications of LM3671MF-1.25

• Primary Input Voltage: 2.25V
• No. Of Outputs: 1
• Output Voltage: 1.25V
• Output Current: 600mA
• Voltage Regulator Case Style: SOT-23
• No. Of Pins: 5
• Operating Temperature Range: -25°C To +85°C
• Svhc: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin Descriptions (SOT23-5)
Pin Descriptions (5-bump Micro SMD)
Pin #
Pin #
A1
A3
C1
C3
B2
1
2
3
4
5
Name
Name
GND
GND
SW
SW
V
V
EN
FB
EN
FB
IN
IN
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
enabled when
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.
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
enabled when
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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1.0V. Do not leave this pin floating.
1.0V. Do not leave this pin floating.
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0.4V and
0.4V and