© 2015 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN48617 • Rev. 1.0

8

Application Information

(6)) of small, high-value

ceramic capacitors decreases as their bias voltage

increases, as illustrated in the graph below:

Capacitor (TDK C1005X5R0J106M050BC)

FAN48617 is guaranteed for stable operation with the

Table 4.

Operating Conditions

(

F)

5.0

2.7 to 4.5

0 to 500

4.2

5.0

2.7 to 4.5

0 to 1000

6.3

Note:

6.

and case size.

Layout Recommendations

The layout recommendations below highlight various

top-copper pours by using different colors.

close as possible to PGND and VOUT, as shown in

Figure 19.

For best thermal performance, maximize the pour area

for all planes other than SW. The ground pour,

especially, should fill all available PCB surface area and

be tied to internal layers with a cluster of thermal vias.

Figure 19.

Layout Recommendation

The table below pertains to MOD drawing on the following page.

Product-Specific Package Dimensions

Product

D

E

X

Y

FAN48617UC50X

1.215 ±0.030 mm

1.215 ±0.030 mm

0.2075 mm

0.2075 mm