SLLSFV1 March 2025 MCF8329A-Q1
PRODUCTION DATA
A 3.3V, 50mA linear regulator is integrated into the MCF8329A-Q1 and is available for use by external circuitry. This regulator can provide the supply voltage for a low-power MCU or other circuitry with low supply current requirements. The output of the AVDD regulator is bypassed near the AVDD pin with a X7R, 1μF or 2.2μF, 10V ceramic capacitor routed back to the AGND pin.
Figure 6-3 AVDD Linear Regulator Block
DiagramThe power dissipated in the device by the AVDD linear regulator can be calculated as shown in Equation 1,
For example, at a VPVDD of 24V, drawing 20mA out of AVDD (output at 3.3V) results in power dissipation as shown in Equation 2,
