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ISSUED DATE :2003/05/27

REVISED DATE :2005/08/10E

Step-Down Converter

Test

Conditions

Results

Line Regulation

Vin = 15V to 25V, Io = 50mA

12mV = ± 0.12%

Load Regulation

Vin = 25V, Io = 50mA to 500mA

3mV = ± 0.03%

Output Ripple

Vin = 25V,Io = 500mA

120mVp-p

Short Circuit Current

1.1A

Efficiency

Vin = 25V, Io = 500mA

83.7%

Output Ripple With Optional Filter Vin = 25V, Io = 500mA

40mVp-p

External Current Boost Connections for Ic Peak Greater than 1.5A

External NPN Switch

External PNP Saturated Switch