DIO75530

Version 1.3, Aug 2025

www.dioo.com

© 2025 Dioo Microcircuits Co., Ltd. Jiangsu

III

Table of Contents

1. Pin Assignment and Functions ....................................................................................................................1

2. Absolute Maximum Ratings ........................................................................................................................ 2

3. Recommended Operating Conditions .........................................................................................................2

4. ESD Ratings ................................................................................................................................................2

5. Thermal Considerations ..............................................................................................................................3

6. Electrical Characteristics .............................................................................................................................4

7. Typical Performance Characteristics .......................................................................................................... 5

8. Block Diagram .............................................................................................................................................7

9. Application Information ................................................................................................................................8

9.1. Operation information .......................................................................................................................8

9.2. Supply filter capacitor ....................................................................................................................... 8

9.3. Overcurrent and overtemperature protection ...................................................................................8

9.4. Reverse-voltage protection .............................................................................................................. 8

9.5. FAULT output .................................................................................................................................8

9.6. Current limiting setting ......................................................................................................................9

10. Physical Dimension .................................................................................................................................10

10.1. SOT23-6....................................................................................................................................... 10

10.2. DFN2*2-6 ......................................................................................................................................11

List of Figures

Figure 1. Pin assignment (Top view) ...............................................................................................................1

Figure 2. Quiescent current vs. Input voltage .................................................................................................5

Figure 3. Quiescent current vs. Ambient temperature .................................................................................... 5

Figure 4. Enable voltage vs. Input voltage ......................................................................................................5

Figure 5. Static drain-source on-state resistance vs. Input voltage ................................................................5

Figure 6. Static drain-source on-state resistance vs. Ambient temperature...................................................5

Figure 7. Current limit threshold vs. Current limit resistor...............................................................................5

Figure 8. Input voltage turn on rise time......................................................................................................... 6

Figure 9. Input voltage turn off fall time...........................................................................................................6

Figure 10. Enable voltage turn on rise time.................................................................................................... 6

Figure 11. Enable voltage turn off fall time......................................................................................................6

Figure 12. No load to short transient response ...............................................................................................6

Figure 13. Short to no load transient response ...............................................................................................6

Figure 14. Heavy load to short transient response .........................................................................................6

Figure 15. Short to heavy load transient response .........................................................................................6