FAN8060 データシートの表示（PDF） - ON Semiconductor

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FAN8060

1.2 MHz, 1 A Synchronous Step-Down DC/DC Regulator

ON Semiconductor 

Pin Configuration

EN 1

AVIN 2

PVIN 3

SW 4

PGND 5

10 AGND

9 FB

8 COMP

7 SS

6 SYNC

Figure 2. Pin Configuration (Top View)

Note:

1. Connect exposed PAD to AGND

Pin Definitions

Pin Name

Function

1

EN Enable. Enables operation when pulled to logic HIGH.

2

AVIN Analog Input Voltage. All internal control circuits are connected to this supply.

3

PVIN Power Input Voltage. Power stage supply voltage.

4

SW Switching Node. The drains of both PMOS and NMOS.

5

PGND Power Ground. Power return and source of the power NMOS

Synchronization. Use this pin to synchronize the part to an external clock. This pin also

6

SYNC

controls current limit threshold. Tie to ground for 1.0 A or tie to VIN for 0.5 A continuous load

current. When an external clock is applied, the default current setting is 1 A. This pin has a

pull-down resistor of 450 KΩ.

7

SS Soft-Start. A capacitor connected between this pin and AGND can set soft-start time.

8

COMP

Compensation. Error amplifier output. Connect the external compensation network between

this pin and AGND.

9

FB Output Voltage Feedback. Connect through a resistor divider to set the output voltage.

10

AGND Analog Ground. Ground return for all internal control circuits.

© 2013 Fairchild Semiconductor Corporation

FAN8060 • Rev. 1.0.1

2

www.fairchildsemi.com

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