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| FAN2011 Datasheet, PDF (2/10 Pages) Fairchild Semiconductor – 1.5A Low Voltage Current Mode Synchronous PWM Buck Regulator | |||
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Pin Assignment
Top View
FB 1
PGND 2
SW 3
P1
(AGND)
6 NC
5 VIN
FB 1
PGND 2
4 PVIN
SW 3
6 EN
P1
(AGND)
5
VIN
4 PVIN
FAN2011
3x3mm 6-Lead MLP
FAN2012
3x3mm 6-Lead MLP
Figure 2. Pin Assignment
Pin Description
FAN2011 (3x3mm 6-Lead MLP)
Pin No.
P1
1
2
3
4
5
6
Pin Name
Pin Description
AGND
Analog Ground. P1 must be soldered to the PCB ground.
FB
Feedback Input. Adjustable voltage option, connect this pin to the resistor divider.
PGND
Power Ground. This pin is connected to the internal MOSFET switches. This pin must be exter-
nally connected to AGND.
SW
Switching Node. This pin is connected to the internal MOSFET switches.
PV IN
VIN
NC
Supply Voltage Input. This pin is connected to the internal MOSFET switches.
Supply Voltage Input.
Not Connected. This pin is not internally connected.
FAN2012(3x3mm 6-Lead MLP)
Pin No.
P1
1
2
3
4
5
6
Pin Name
Pin Description
AGND
Analog Ground. P1 must be soldered to the PCB ground.
FB
Feedback Input. Adjustable voltage option, connect this pin to the resistor divider.
PGND
Power Ground. This pin is connected to the internal MOSFET switches. This pin must be exter-
nally connected to AGND.
SW
Switching Node. This pin is connected to the internal MOSFET switches.
PV IN
VIN
EN
Supply Voltage Input. This pin is connected to the internal MOSFET switches.
Supply Voltage Input.
Enable Input. Logic high enables the chip and logic low disables the chip, reducing the supply
current to less than 1µA. Do not ï¬oat this pin.
FAN2011/FAN2012 Rev. 1.0.2
2
www.fairchildsemi.com
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