![](/html/Promax-Johnton/40849/page10.png)
PJ494
Switchmode Pulse Width Modulation Control Circuit
Figure 21. Pulse Width Modulated Step-Down Converter
Test
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Condition
VIN = 8.0V to 40V
VIN = 12.6V, Io = 0.2mA to 200mA
VIN = 12.6V, Io = 200mA
VIN = 12.6V, RL=0.1Ω
VIN = 12.6V, Io = 200mA
Result
3.0mV 0.01%
5.0mV 0.02%
40mV pp P.A.R.D
250mA
72%
10-11
2002/11.rev.A