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

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 2. External Components Requirements in Switching Mode⁽¹⁾
Symbol	Parameter	Conditions	Min.	Typ.	Max.	Units
C_IN	Input regulator capacitor		-	4.7	-	µF
C_IN	Input regulator capacitor	Ceramic dielectric	-	100	-	nF
C_OUT	Output regulator capacitor		-	1	-	µF
C_OUT	Output regulator capacitor	Ceramic dielectric	-	100	-	nF
L_EXT	External inductance	Murata LQH3NPN100MJ0	-	10	-	µH
R_{SERIE_L_EXT}	Serial resistance of Lext	-	-	-	0.7	Ω
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.