GS7103PP-R datasheet(12/15 Pages) GSTEK

12 / 15 page

3A Ultra Low Dropout Linear Regulator

GS7103

Green Solution Technology Co.,LTD.

Rev.:1.6

JUN-16

of pad to 70mm2 (Figure 4.c) reduces the θJA to

49°C/W.

Figure 4 (a) Minimum Footprint,

JA = 75C/W

Figure 4 (b) Copper Area = 30mm2,

JA= 54C/W

Figure 4 (c) Copper Area = 70mm2,

JA = 49C/W

Figure 4

JA vs. Different Cooper Area Layout Design

And Figure 4 shows a curve for the θJA of the

PSOP-8 package for different copper area sizes

using a typical PCB with 2oz copper in still air.

Figure 5

JA vs. Copper Area

The maximum power dissipation depends on

operating ambient temperature or fixed TJ(MAX)

and

thermal

resistance

JA. For GS7103

packages, the Figure 5 of derating curves allows

the designer to see the effect of rising ambient

temperature on the maximum power allowed.

Figure 6 Derating Curve for Packages

Copper Area (mm2)

100

125

150

Ambient Temperature (°C)

3500

3000

2500

2000

1500

1000

500

TDFN10-3x3

PSOP-8

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