Datasheet

MCP2021/2/1P/2P

1.6.2 3.3V REGULATOR

A metal option provides for a alternate 3.30 VDC ±3%

at up to 50 mA of load current over the entire operating

temperature range of -40°C to +125°C. All

specifications given above for the 5.0V operation apply

except for any difference noted here.

The same input tracking of 4.25V applies the 3.3V

regulator.

FIGURE 1-10: Voltage Regulator Output on POR.

Note: The regulator has an overload current

limiting of approximately 100 mA. If V

REG

is lower than 2.5V, the VREG will turn off.

Note 1: Start-up, VBB < 5.75V, regulator off.

2: V

BB > 5.75V, regulator on.

3: V

BB ≤ 5.5V, regulator tracks VBB.

4: V

BB < 4.25V, regulator will turn off.

5.0

3.5

(1) (2) (3)

VBB

VREG