1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569E – JANUARY 2005 – REVISED JANUARY 2006
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TYPICAL OPERATING CHARACTERISTICS
T
A
= 25°C (unless otherwise noted)
GRAPH PREVIEWS
Normalized Output Voltage
Line Regulation
Dropout Voltage
Current Limit
Quiescent Current
Standby Quiescent Current
Quiescent Current vs Duty Cycle
Oscillator Frequency
Switch Saturation Voltage
Efficiency
Minimum Operating Voltage (Adjustable Version)
Feedback Voltage vs Duty Cycle
Feedback Pin Current (Adjustable Version)
Switching Waveforms
Load Transient Response
4