Buck Converter

Table 1. Buck Converter Electrical Characteristics
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
P_EFF	Power Efficiency⁽²⁾	I_OUT = 5mA	-	86	-	%
P_EFF	Power Efficiency⁽²⁾	I_OUT = 50mA	-	85	-	%
VREGSCAL	Voltage scaling⁽¹⁾	min step size for PLx to PLy transition	-	5	-	mV
VREGSCAL	Voltage scaling⁽¹⁾	Voltage Scaling Period	-	1	-	µs

Notes:

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 2. External Components Requirements in Switching Mode⁽¹⁾
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
C_IN	Input regulator capacitor	Tantalum or Electrolitic Dielectric	-	10	-	µF
C_IN	Input regulator capacitor	Ceramic dielectric X7R	-	100	-	nF
C_OUT	Output regulator capacitor	Tantalum or Electrolitic Dielectric	0.8	1	1.2	µF
C_OUT	Output regulator capacitor	Ceramic dielectric X7R	-	100	-	nF
L_EXT	External inductance	-	8	10	12	µH
R_{SERIE_L_EXT}	Serial resistance of Lext	-	-	-	0.7	Ω
R_{SERIE_C_OUT}	Serial resistance of C_OUT	-	-	-	0.5	Ω
SFR_L_EXT	Self-resonant frequency of L_EXT	-	30	-	-	MHz
I_{SAT_L_EXT}	Saturation current	-	275	-	-	mA

Note:

1.These values are based on simulation. They are not covered by production test limits or characterization.