MIC2199 데이터 시트보기 (PDF) - Micrel

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MIC2199

300kHz 4mm × 4mm Synchronous Buck Converter

Micrel 

Micrel, Inc.

Minimum Pulsewidth

The MIC2199 has a specified minimum pulsewidth. This

minimum pulsewidth places a lower limit on the minimum

duty cycle of the buck converter.

Figure 5 shows the minimum output voltage versus input

supply voltage for the MIC2199. For example, for VIN =

15V, VOUT = 1V would be the lowest achievable voltage that

conforms to the minimum-on-time.

2.5

2.0

1.5

1.0

0.5

0.0

4.5

9.5 14.5 19.5 24.5 29.5

INPUT VOLTAGE (V)

Figure 5.  Minimum Output Voltage

vs. Input Supply Voltage

MIC2199

January 2010

8

M9999-011310

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