L4973D33 datasheet(9/16 Pages) STMICROELECTRONICS

부품명	L4973D33

상세설명	3.5A STEP DOWN SWITCHING REGULATOR

PDF	16 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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9 / 16 page

0123

IO(A)

5.0

5.05

5.1

5.15

(V)

D97IN640

Tj=25

°C

Tj=125

°C

VCC = 35V

Figure 10: Load Regulation (see fig. 1c)

1020304050

VCC(V)

3.3

3.31

3.32

3.34

(V)

3.33

3.35

D97IN660A

Tj=25

°C

Tj=125

°C

IO =1A

Figure 11: Line Regulation (see fig. 1d)

0123

IO(A)

3.3

3.31

3.33

3.35

(V)

3.32

3.34

D97IN661

Tj=25

°C

Tj=125

°C

VCC = 35V

Figure 12: Load Regulation (see fig. 1d)

R2(K

Ω)

100

200

500

fsw

(KHz)

D97IN630

0.82nF

1.2nF

2.2nF

3.3nF

4.7nF

5.6nF

Tamb=25

°C

Figure 13: Switching Frequency vs.R2 and C7

(fig. 1)

1020

304050

VCC(V)

100

105

fsw

(KHz)

D97IN631

Tamb=25

°C

Figure 14: Switching Frequency vs. Input Voltage

-50

100

Tj(

°C)

100

105

fsw

(KHz)

D97IN632

Figure 15: Switching Frequency vs. Junction

temperature (see fig. 1)

L4973V3 - L4973V5 - L4973D3 - L4973D5

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