LM2575HV datasheet(11/44 Pages) TI

tên linh kiện	LM2575HV

Giải thích chi tiết về linh kiện	LM1575/LM2575/LM2575HV SIMPLE SWITCHER짰 1A Step-Down Voltage Regulator

PDF	44 Pages

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nhà sản xuất	TI [Texas Instruments]

Trang chủ	http://www.ti.com

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LM1575, LM2575-N, LM2575HV

www.ti.com

SNVS106E – MAY 1999 – REVISED APRIL 2013

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

(Circuit Figure 25 and Figure 26)

Maximum Power Dissipation

Feedback Pin Current

(TO-263) (See (1))

Figure 21.

Figure 22.

Switching Waveforms

Load Transient Response

VOUT = 5V

A: Output Pin Voltage, 10V/div

B: Output Pin Current, 1A/div

C: Inductor Current, 0.5A/div

D: Output Ripple Voltage, 20 mV/div,

AC-Coupled

Horizontal Time Base: 5

μs/div

Figure 23.

Figure 24.

(1)

If the DDPAK/TO-263 package is used, the thermal resistance can be reduced by increasing the PC board copper area thermally

connected to the package: Using 0.5 square inches of copper area,

θJA is 50°C/W; with 1 square inch of copper area, θJA is 37°C/W;

and with 1.6 or more square inches of copper area,

θJA is 32°C/W.

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