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TYPICAL OPERATING CHARACTERISTICS

LM2575

1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR

SLVS569D – JANUARY 2005 – REVISED JULY 2005

T

GRAPH PREVIEWS

Figure 2. Normalized Output Voltage

Figure 3. Line Regulation

Figure 4. Dropout Voltage

Figure 5. Current Limit

Figure 6. Quiescent Current

Figure 7. Standby Quiescent Current

Figure 9. Quiescent Current vs Duty Cycle

Figure 0. Oscillator Frequency

Figure 10. Switch Saturation Voltage

Figure 11. Efficiency

Figure 12. Minimum Operating Voltage (Adjustable Version)

Figure 13. Feedback Voltage vs Duty Cycle

Figure 14. Feedback Pin Current (Adjustable Version)

Figure 15. Switching Waveforms

Figure 16. Load Transient Response

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