DIO1298

Version 1.2, Apr 2026

www.dioo.com

© 2026 Dioo Microcircuits Co., Ltd. Jiangsu

IV

List of Figures

Figure 1. WLCSP-25 (Top view) ..................................................................................................................... 1

Figure 2. Timing diagram (UVLO, soft-start and turn-off) ............................................................................... 6

Figure 3. Timing diagram (OVP) ..................................................................................................................... 6

Figure 4. Timing diagram (“Ideal diode” RCP ) ............................................................................................... 7

Figure 5. Timing diagram (OTP)..................................................................................................................... 7

Figure 6. Timing diagram (Soft-start current limit) .......................................................................................... 8

Figure 7. Timing diagram (Hard OCP and SCP) .............................................................................................8

Figure 8. Timing diagram (Soft OCP and SCP) .............................................................................................. 8

Figure 9. Supply current vs. VIN...................................................................................................................... 9

Figure 10. RCP shutdown current vs. VOUT.....................................................................................................9

Figure 11. Shutdown current vs. VIN............................................................................................................... 9

Figure 12. On resistance vs. Load current......................................................................................................9

Figure 13. "Ideal diode" Vdroop vs. Load current ...........................................................................................9

Figure 14. Enable, soft-start, shutdown response ........................................................................................ 10

Figure 15. Enable, soft-start, shutdown response ........................................................................................ 10

Figure 16. Heavy load soft-start response ....................................................................................................10

Figure 17. Over-load soft-start & Auto-retry response ..................................................................................10

Figure 18. OCP/SCP response .....................................................................................................................10

Figure 19. SCP response with auto-retry ......................................................................................................10

Figure 20. RCP response ..............................................................................................................................11

Figure 21. RCP fast recovery ........................................................................................................................11

Figure 21. “Ideal diode” reverse-current protection ...................................................................................... 14

Figure 22. Typical application ....................................................................................................................... 15

Figure 23. SOA (TC = 25°C)....................................................................................................................................... 15