MC33166(2002) 데이터 시트보기 (PDF) - ON Semiconductor

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MC33166
(Rev.:2002)

3.0 A, Step−Up/Down/Inverting Switching Regulators

ON Semiconductor 

MC34166, MC33166

+

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

1

Compensation 5

D2

D1

R1

Vin

1.0 M

Css

tSoft-Start ≈ 35,000 Css

Figure 18. Soft–Start Circuit

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