LP3855ES-ADJSLASHNOPB datasheet(13/22 Pages) TI

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LP3855ES-ADJ/NOPB Datasheet(PDF) 13 Page - Texas Instruments

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Part #	LP3855ES-ADJ/NOPB

Description	1.5A Fast Response Ultra Low Dropout Linear Regulators

PDF	22 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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13 / 22 page

LP3855-ADJ

www.ti.com

SNVS244F – SEPTEMBER 2003 – REVISED APRIL 2013

Figure 20.

θJA vs Copper (1 Ounce) Area for DDPAK/TO-263 Package

As shown in the figure, increasing the copper area beyond 1 square inch produces very little improvement. The

minimum value for

θJA for the DDPAK/TO-263 package mounted to a PCB is 32°C/W.

Figure 21 shows the maximum allowable power dissipation for DDPAK/TO-263 packages for different ambient

temperatures, assuming

θJA is 35°C/W and the maximum junction temperature is 125°C.

Figure 21. Maximum Power Dissipation vs Ambient Temperature for DDPAK/TO-263 Package

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