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FAN2011I Folha de dados(PDF) 2 Page - Fairchild Semiconductor |
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FAN2011I Folha de dados(HTML) 2 Page - Fairchild Semiconductor |
2 / 10 page 2 www.fairchildsemi.com FAN2011/FAN2012 Rev. 1.0.4 Typical Application Figure 1. Typical Application Pin Assignment Figure 2. Pin Assignment Pin Description FAN2011 (3x3mm 6-Lead MLP) FAN2012 (3x3mm 6-Lead MLP) Pin No. Pin Name Pin Description P1 AGND Analog Ground. P1 must be soldered to the PCB ground. 1FB Feedback Input. Adjustable voltage option; connect this pin to the resistor divider. 2 PGND Power Ground. This pin is connected to the internal MOSFET switches. This pin must be externally connected to AGND. 3SW Switching Node. This pin is connected to the internal MOSFET switches. 4 PVIN Supply Voltage Input. This pin is connected to the internal MOSFET switches. 5VIN Supply Voltage Input. 6NC Not Connected. This pin is not internally connected. Pin No. Pin Name Pin Description P1 AGND Analog Ground. P1 must be soldered to the PCB ground. 1 FB Feedback Input. Adjustable voltage option; connect this pin to the resistor divider. 2 PGND Power Ground. This pin is connected to the internal MOSFET switches. This pin must be externally connected to AGND. 3SW Switching Node. This pin is connected to the internal MOSFET switches. 4PVIN Supply Voltage Input. This pin is connected to the internal MOSFET switches. 5VIN Supply Voltage Input. 6EN Enable Input. Logic high enables the chip and logic low disables the chip, reducing the supply current to less than 1µA. Do not float this pin. FAN2011 FAN2012 1 2 3 6 5 4 FB PGND SW PVIN VIN NC P1 (AGND) L1 R2 R1 +5V VOUT 4 x 10 µF 3.3 µH 10 µF 10K Ω 1 2 3 6 5 4 FB PGND SW PVIN VIN EN P1 (AGND) L1 R2 R1 +5V VOUT 4 x 10 µF 3.3 µH 10 µF 10K Ω FAN2011 3x3mm 6-Lead MLP FAN2012 3x3mm 6-Lead MLP Top View 1 2 3 6 5 4 1 2 3 6 5 4 FB PGND SW PVIN VIN NC FB PGND SW PVIN VIN EN P1 (AGND) P1 (AGND) |
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