MIC2199_10 Datasheet, PDF (8/14 Pages) Micrel Semiconductor – 300kHz 4mm × 4mm Synchronous Buck Converter

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 V_IN =
15V, V_OUT = 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