46.11.1.1 Buck Converter

Table 46-15. Buck Converter Electrical Characteristics
Symbol Parameter Conditions Min. Typ. Max. Units
PEFF Power Efficiency(2) IOUT = 5mA - 86 - %
IOUT = 50mA - 85 - %
VREGSCAL Voltage 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. They are not covered in test limits in production.
Table 46-16. External Components Requirements in Switching Mode(1)
Symbol Parameter Conditions Min. Typ. Max. Units
CIN Input regulator capacitor Tantalum or Electrolitic Dielectric - 10 - µF
Ceramic dielectric X7R - 100 - nF
COUT Output regulator capacitor Tantalum or Electrolitic Dielectric 0.8 1 1.2 µF
Ceramic dielectric X7R - 100 - nF
LEXT External inductance - 8 10 12 µH
RSERIE_LEXT Serial resistance of Lext - - - 0.7
RSERIE_COUT Serial resistance of COUT - - - 0.5
SFR_LEXT Self-resonant frequency of LEXT - 30 - - MHz
ISAT_LEXT Saturation current - 275 - - mA
Note:
  1. These values are based on simulation. They are not covered by production test limits or characterization.