LM2576T-ADJSLASHNOPB datasheet(10/37 Pages) TI1

No. de pieza	LM2576T-ADJ/NOPB

Descripción Electrónicos	SIMPLE SWITCHER짰 3A Step-Down Voltage Regulator

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Fabricante Electrónico	TI1 [Texas Instruments]

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10 / 37 page

LM2576, LM2576HV

SNVS107C – JUNE 1999 – REVISED APRIL 2013

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TYPICAL PERFORMANCE CHARACTERISTICS (continued)

(Circuit of Figure 21 and Figure 22)

Maximum Power Dissipation

(DDPAK/TO-263)

Switching Waveforms

VOUT = 15V

If the DDPAK/TO-263 package is used, the thermal resistance can be

A: Output Pin Voltage, 50V/div

reduced by increasing the PC board copper area thermally connected

B: Output Pin Current, 2A/div

to the package. Using 0.5 square inches of copper area,

θJA is

C: Inductor Current, 2A/div

50°C/W, with 1 square inch of copper area,

θJA is 37°C/W, and with

D: Output Ripple Voltage, 50 mV/div,

1.6 or more square inches of copper area,

θJA is 32°C/W.

AC-Coupled

Horizontal Time Base: 5

μs/div

Figure 18.

Figure 19.

Load Transient Response

Figure 20.

10

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