MIC7401 Datasheet, PDF (5/68 Pages) Micrel Semiconductor – Configurable PMIC, Five-Channel Buck Regulator plus One-Boost with HyperLight Load®, I2C Control, and Enable

Micrel, Inc.
MIC7401
List of Figures
Figure 1. Buck Soft-Start ..................................................................................................................................................... 25
Figure 2. Buck Soft-Start ..................................................................................................................................................... 26
Figure 3. Buck DVC Control Ramp ..................................................................................................................................... 26
Figure 4. Buck DVC Control Ramp ..................................................................................................................................... 27
Figure 5. Boost Soft-Start Ramp ......................................................................................................................................... 27
Figure 6. Boost Soft-Start.................................................................................................................................................... 27
Figure 7. Boost DVC Control Ramp .................................................................................................................................... 28
Figure 8. Standard Delay Time ........................................................................................................................................... 29
Figure 9. Hot Plug − V_IN Rising ........................................................................................................................................... 30
Figure 10. POR ..................................................................................................................................................................... 30
Figure 11. Hot Un-Plug − V_IN Falling ..................................................................................................................................... 30
Figure 12. I²C Stand-By Mode .............................................................................................................................................. 31
Figure 13. Output Pull-Down Resistance .............................................................................................................................. 31
Figure 14. STBY-to-NORMAL Transition (DEFAULT) .......................................................................................................... 32
Figure 15. Pre-Biased Output Voltage .................................................................................................................................. 32
Figure 16. Power Dissipation ................................................................................................................................................ 33
Figure 17. Power Derating Curve.......................................................................................................................................... 33
Figure 18. Hot-Plug Input Voltage Spike............................................................................................................................... 34
Figure 19. MIC7401 Power-Up/-Down .................................................................................................................................. 35
Figure 20. MIC7401 STBY Function (DEFAULT) ................................................................................................................. 36
Figure 21. Connections for Unused Pins .............................................................................................................................. 40
Figure 22. Read/Write Protocol............................................................................................................................................. 47
March 16, 2015
5
Revision 1.0