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TD34063
TMC
Figure 3. Step-Down Converter
Test
Condition
Results
Line Regulation
V
in = 15 V to 25 V, Io = 500 mA
12 mV = ± 0.12%
Load Regulation
V
in = 25 V, Io = 50 mA to 500 mA
3.0 mV = ± 0.03%
Output Ripple
V
in = 25 V, Io = 500 mA
120 mVpp
Short Circuit Current
V
in = 25 V, RL = 0.1 Ω
1.1 A
Efficiency
V
in = 25 V, Io = 500 mA
83.7%
Output Ripple With Optional Filter
V
in = 25 V, Io = 500 mA
40 mVpp
Figure 4. External Current Boost Connections for Ic Peak Greater than 1.5 A
4a. External NPN Switch
4b. External PNP Saturated Switch