FAN5307 Datasheet, PDF (2/13 Pages) Fairchild Semiconductor – High-Efficiency Step-Down DC-DC Converter

Pin Assignment
Pin Description
5-Lead SOT-23
Pin No. Pin Name
1
V_IN
2
GND
3
EN
4
FB
5
L_X
Pin Description
Supply voltage input.
Ground.
Enable Input. Logic high enables the chip and logic low disables the chip and reduces
supply current to <1µA. Do not float this pin.
Feedback Input. In case of fixed voltage options, connect this pin directly to the output.
For an adjustable voltage option, connect this pin to the resistor divider.
Inductor pin. This pin is connected to the internal MOSFET switches.
6-Lead 3x3mm MLP
Pin No. Pin Name
1
EN
2
GND
3
V_IN
4
L_X
5
PGND
6
FB
Pin Description
Enable Input. Logic high enables the chip and logic low disables the chip and reduces
supply current to <1µA. Do not float this pin.
Reference ground.
Supply voltage input.
Inductor pin. This pin is connected to the internal MOSFET switches.
Power ground. Internal N-channel MOSFET is connected to this pin.
Feedback Input. In case of fixed voltage options, connect this pin directly to the output.
For an adjustable voltage option, connect this pin to the resistor divider.
2
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FAN5307 Rev. 1.0.4