MC33167 查看數據表（PDF） - ON Semiconductor

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MC33167

5.0 A, Step-Up/Down/Inverting Switching Regulators

ON Semiconductor 

MC34167, MC33167

+

100 µA

Error

Amp

120

Compensation 5

1

R1

+

100 µA

Error

Amp

120

Compensation 5

1

R1

I = Standby Mode

Figure 16. Low Power Standby Circuit

VShutdown = VZener + 0.7

Figure 17. Over Voltage Shutdown Circuit

+

100 µA

Error

Amp

120

Compensation 5

D2

D1

Vin

1.0 M

Css

tSoft-Start ≈ 35,000 Css

1

R1

Figure 18. Soft–Start Circuit

http://onsemi.com

9

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