MCP1812A View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP1812A

Ultra-Low Quiescent Current LDO Regulator for Long-Life Battery-Powered Applications

Microchip Technology 

MCP1811A/11B/12A/12B

Note: Unless otherwise indicated, CIN = COUT = 1 μF (MCP1811X) or 2.2 μF (MCP1812X) ceramic type (X7R),

IOUT = 1 mA, TA = +25°C, VIN = VR + 1V, SHDN = 1 M pull-up to VIN.

3.37

3.36

VIN = 4.3V

3.35

3.34

3.33

3.32

3.31

3.30

3.29

3.28

3.27

3.26

3.25

0

50

TJ = +85°C

VR = 3.3V

TJ = +25°C

TJ = -40°C

100 150 200 250 300

Load Current (mA)

FIGURE 2-7:

Output Voltage vs. Load

Current (MCP1812X, VR = 3.3V).

0.50

0.45

0.40

VR = 3.3V

TJ = -40°C

0.35

TJ = +25°C

0.30

0.25

TJ = +85°C

0.20

0

50 100 150 200 250 300

Load Current (mA)

FIGURE 2-10:

Dropout Voltage vs. Load

Current (MCP1812X, VR = 3.3V).

4.060

4.050

4.040

VIN = 5V

TJ = -40°C

4.030

VR = 4V

TJ = +25°C

4.020

4.010

TJ = +85°C

4.000

0

25 50 75 100 125 150

Load Current (mA)

FIGURE 2-8:

Output Voltage vs. Load

Current (MCP1811X, VR = 4.0V).

0.50

0.45

VR = 4V

0.40

TJ = -40°C

0.35

0.30

0.25

TJ = +85°C

TJ = +25°C

0.20

0

25

50

75 100 125 150

Load Current (mA)

FIGURE 2-11:

Dropout Voltage vs. Load

Current (MCP1811X, VR = 4.0V).

0.50

0.45

VR = 2.5V

TJ = -40°C

0.40

0.35

0.30

0.25

TJ = +25°C

TJ = +85°C

0.20

0

50 100 150 200 250 300

Load Current (mA)

FIGURE 2-9:

Dropout Voltage vs. Load

Current (MCP1812X, VR = 2.5V)

100.000

10.000

1.000

0.100

0.010

VIN = 2.4V

VOUT = 1V

Load = 50 mA

0.001

Output Noise 10 Hz - 100 kHz = 169.31 μVrms

0.01 0.1

1

10 100 1000

Frequency (kHz)

10000

FIGURE 2-12:

Noise vs. Frequency

(MCP1812X, VR = 1.0V).

 2018-2019 Microchip Technology Inc.

DS20006088B-page 8

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