NCP1523 Datasheet, PDF (29/35 Pages) ON Semiconductor – 3 MHz, 600 mA, High−Efficiency, Adjustable Output Voltage Stepdown Converter

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PTH04T230W, PTH04T231W
SLTS271A – SEPTEMBER 2006 – REVISED OCTOBER 2006
V_I = 5 V
Track
+Sense
V_I
PTH04T230W
V_O
Inhibit GND
+
C_I
330 µF
V_OAdj −Sense
R_SET
2.37 kΩ
V_O = 2.5 V
I_O
C_O
200 µF
VCORE
3.3 V
VCCIO
ASIC
Figure 27. Application Circuit Demonstrating Prebias Startup
UDG−06055
V_IN (1 V/div)
V_O (1 V/div)
I_O (2 A/div)
t - Time = 4 ms/div
Figure 28. Prebias Startup Waveforms
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