LP3965ESX-ADJ datasheet(16/34 Pages) TI

Part #	LP3965ESX-ADJ

Description	1.5A Fast Ultra Low Dropout Linear Regulators

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Manufacturer	TI [Texas Instruments]

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16 / 34 page

LP3962, LP3965

SNVS066H – MAY 2000 – REVISED APRIL 2013

www.ti.com

Figure 25. Maximum power dissipation vs ambient temperature for SFM/TO-263 package

Figure 26 shows a curve for the

θJA of SOT-223 package for different copper area sizes, using a typical PCB with

1 ounce copper and no solder mask over the copper area for heat sinking.

Figure 26.

θJA vs Copper(1 Ounce) Area for SOT-223 package

Figure 27 through Figure 35 show different layout scenarios for SOT-223 package.

Figure 27. SCENARIO A,

θJA = 148°C/W

Figure 28. SCENARIO B,

θJA = 125°C/W

16

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