Datasheet

The following table shows the recommended components to be used in LDO regulation
mode.
Table 25. Recommended operating characteristics
Part name Part type Nominal Description
Q1 NPN BJT h
FE
= 400 NJD2873: ON Semiconductor LDO voltage regulator controller (VRC)
CI Capacitor 4.7 µF - 20 V Ceramic capacitor, total ESR < 70 mΩ
CE Capacitor 0.047–0.049 µF - 7 V Ceramic—one capacitor for each V
DD
pin
CV Capacitor 22 µF - 20 V Ceramic V
DDPMC
(optional 0.1 µF)
CD Capacitor 22 µF - 20 V Ceramic supply decoupling capacitor, ESR < 50 mΩ (as close as possible
to NPN collector)
CB Capacitor 0.1 µF - 7 V Ceramic V
DDPWR
R Resistor Application specific Optional; reduces thermal loading on the NPN with high V
DDPMC
levels
The following diagram shows the LDO configuration connection.
CD
CV
CI CE
CB
VDDPMC
REGSEL
VSSPMC (clean ground)
VDDPWR
REGCTL
VSSPWR
VDD
VSS
R
Q1
Figure 12. VRC 1.2 V LDO configuration
3.11.1.2 SMPS mode recommended external components and
characteristics
The following table shows the recommended components to be used in SMPS regulation
mode.
Electrical characteristics
MPC5777C Microcontroller Data Sheet Data Sheet, Rev. 13, 08/2018.
NXP Semiconductors 41