DIA7976

Version 1.9, Apr 2025

www.dioo.com

© 2025 Dioo Microcircuits Co., Ltd. Jiangsu

V

List of Figures

Figure 1. Dropout voltage vs. IOUT at VOUT = 3.3 V ..................................................................................................7

Figure 2. Dropout voltage vs. IOUT at VOUT = 5.5 V ..................................................................................................7

Figure 3. IGND vs. VIN................................................................................................................................................7

Figure 4. PSRR vs. Frequency and IOUT................................................................................................................. 7

Figure 5. Output voltage vs. Temperature ...............................................................................................................7

Figure 6. Output voltage vs. Temperature ...............................................................................................................7

Figure 7. Output voltage vs. Output current............................................................................................................8

Figure 8. Output voltage vs. Output current............................................................................................................8

Figure 9. Dropout voltage vs. Output voltage ......................................................................................................... 8

Figure 10. Shutdown current vs. Input voltage ....................................................................................................... 8

Figure 11. Ground pin current vs. Output current................................................................................................... 8

Figure 12. Output voltage vs. Input voltage............................................................................................................ 8

Figure 13. Line transient ......................................................................................................................................... 9

Figure 14. Load transient........................................................................................................................................ 9

Figure 15. Start up with EN .....................................................................................................................................9

Figure 16. Power up with VIN ................................................................................................................................9

Figure 17. Adjustable version with open-drain power-good ..................................................................................10

Figure 18. Adjustable version with push-pull power-good .................................................................................... 10

Figure 19. Fixed voltage version with open-drain power-good ............................................................................. 11

Figure 20. Fixed voltage version with push-pull power-good ................................................................................11

Figure 21. Current limit ..........................................................................................................................................13

Figure 22. Typical application: adjustable voltage ................................................................................................ 15

Figure 23. Typical application: fixed voltage ......................................................................................................... 15

Figure 24. Start-up into dropout ............................................................................................................................ 16

List of Tables

Table 1. Device functional modes......................................................................................................................................14

Table 2. Recommended resistors for DIA7976 (Adjustable version)........................................................................... 16