58.7.1 VDDOUT25 Voltage Regulator
| Symbol | Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| VDDIN33 | Supply voltage range (VDDIN33) | – | 3.0 | – | 3.6 | V |
| VSTART | Input startup voltage | – | VIT+ POR VDDIN33 | V | ||
| VSTOP | Input shutdown voltage | – | VIT- POR VDDIN33 | V | ||
| tSTART | Startup time(1) | From VDDIN33 > VSTART to VDDOUT25 set to 95% of its final value | – | – | 6 | ms |
| ILOAD_EXT | External DC output current(2) | – | – | – | 1 | mA |
| VDDOUT25 | VDDOUT25 accuracy | – | 2.45 | – | 2.55 | V |
| IINRUSH | Inrush current(1)(3) | ILOAD = 0 | – | – | 100 | mA |
| CIN | Input decoupling capacitor(4) | – | 2.2 | – | – | μF |
| COUT | Stable output capacitor range(5) | Capacitance | 1 | 2.2 | 2.7 | μF |
| ESR | 0.01 | – | 0.3 | Ω | ||
| RDIS | 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 COUT.
- 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, COUT, must be connected between the VDDOUT25 and the device’s closest GND pin.