46.10.1.1 Buck Converter

Table 46-14. Buck Converter Electrical Characteristics
SymbolParameterConditionsMin.Typ.Max.Units
PEFFPower Efficiency(2)IOUT = 5 mA-86-%
IOUT = 50 mA-85-%
VREGSCALVoltage scaling(1)Min step size for PLx to PLy transition-5-mV
Voltage Scaling Period-1-µs
Note:
  1. These values are based on simulation. They are not covered by production test limits or characterization.
  2. These values are based on characterization.
Table 46-15. External Components Requirements in Switching Mode(1)
SymbolParameterConditionsMin.Typ.Max.Units
CINInput regulator capacitorTantalum or electrolytic dielectric-4.7-µF
Ceramic dielectric-100-nF
COUTOutput regulator capacitor-1-µF
Ceramic dielectric-100-nF
LEXTExternal inductanceMurata LQH3NPN100MJ0-10-µH
RSERIE_LEXTSerial resistance of Lext---0.7
ISAT_LEXTSaturation current -275--mA
Note:
  1. These values are based on simulation. They are not covered by production test limits or characterization.