JAJSS15 November 2023 LMK3H0102
ADVANCE INFORMATION
The LMK3H0102 provides multiple power supply pins. Each power supply supports 1.8 V, 2.5 V, or 3.3 V. Internal low-dropout regulators (LDO) source the internal blocks and allow each pin to be supplied with individual supply voltages. The VDD pin supplies the control pins, the serial interface, and the REF_CTRL pin. Therefore, any pullup resistors must be connected to the same domain as VDD. VDDO_0 powers output OUT0, and can be left floating if OUT0 is unused. VDDO_1 powers OUT1, and can be left floating if OUT1 is unused.
There are no restrictions from the device for applying power to the supply pins. From an application perspective, TI recommends to either apply all the VDDs at the same time or apply the VDD first, as the digital core is powered by VDD.