MIC2199_10 datasheet(8/14 Pages) MICREL

Part #	MIC2199

Description	300kHz 4mm 횞 4mm Synchronous Buck Converter

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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8 / 14 page

January 2010

8

M9999-011310

Micrel, Inc.

MIC2199

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.

0.0

0.5

1.0

1.5

2.0

2.5

4.5

9.5

14.5 19.5 24.5 29.5

INPUTVOLTAGE(V)

Figure 5. Minimum Output Voltage

vs. Input Supply Voltage

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