58.7.1 VDDOUT25 Voltage Regulator

Table 58-38. VDDOUT25 Voltage Regulator Characteristics
Symbol	Parameter	Conditions	Min	Typ	Max	Unit
V_DDIN33	Supply voltage range (VDDIN33)	–	3.0	–	3.6	V
V_START	Input startup voltage	–	V_IT+ POR VDDIN33			V
V_STOP	Input shutdown voltage	–	V_IT- POR VDDIN33			V
t_START	Startup time⁽¹⁾	From VDDIN33 > V_START to VDDOUT25 set to 95% of its final value	–	–	6	ms
I_{LOAD_EXT}	External DC output current⁽²⁾	–	–	–	1	mA
V_DDOUT25	VDDOUT25 accuracy	–	2.45	–	2.55	V
I_INRUSH	Inrush current⁽¹⁾⁽³⁾	I_LOAD = 0	–	–	100	mA
C_IN	Input decoupling capacitor⁽⁴⁾	–	2.2	–	–	μF
C_OUT	Stable output capacitor range⁽⁵⁾	Capacitance	1	2.2	2.7	μF
C_OUT	Stable output capacitor range⁽⁵⁾	ESR	0.01	–	0.3	Ω
R_DIS	Output discharge resistor value⁽¹⁾	Regulator off	100	–	300	Ω

Note:

Simulation data
This regulator is designed to supply SAM9X60 internal circuits (PLLs, oscillators, etc.). To supply external components, only DC current is permissible (resistive divider, for example).
Input current when charging the external output capacitor C_OUT.
An X5R or X7R ceramic capacitor connected between VDDIN33 and the device’s closest GND pin is a minimum requirement to reduce the inrush current and maximize the regulator’s performances.
To ensure stability, an external X5R or X7R ceramic output capacitor, C_OUT, must be connected between the VDDOUT25 and the device’s closest GND pin.