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.

VR = 4V, VIN = 0V to 5, IOUT = 150 mA

5V

VR = 3.3V, VIN = 4.3V, IOUT = 10 mA

4.3V

0V

VIN (DC Coupled, 2V/div)

0V

SHDN (DC Coupled, 2V/div)

VOUT (DC Coupled, 2V/Div)

Time = 200 μs/Div

FIGURE 2-43:

Start-up from VIN

(MCP1811X, VR = 4.0V).

VR = 1V, VIN = 2.4V, IOUT = 10 mA

2.4V

0V

SHDN (DC Coupled, 1V/div)

VOUT (DC Coupled, 2V/Div)

Time = 200 μs/Div

FIGURE 2-46:

Start-up from SHDN

(MCP1811X, VR = 3.3V).

VR = 4V, VIN = 5V, IOUT = 10 mA

5V

0V

SHDN (DC Coupled, 2V/div)

VOUT (DC Coupled, 500 mV/Div)

Time = 200 μs/Div

FIGURE 2-44:

Start-up from SHDN

(MCP1812X, VR = 1.0V).

VR = 2.5V, VIN = 3.5V, IOUT = 10 mA

3.5V

0V

SHDN (DC Coupled, 2V/div)

VOUT (DC Coupled, 1V/Div)

Time = 200 μs/Div

FIGURE 2-45:

Start-up from SHDN

(MCP1812X, VR = 2.5V).

VOUT (DC Coupled, 2V/Div)

Time = 200 μs/Div

FIGURE 2-47:

Start-up from SHDN

(MCP1811X, VR = 4.0V).

60

VR = 1V

IOUT = 0.1 mA to 150 mA

50

40

VIN = 3.0V

30

VIN = 2.0V

VIN = 2.4V

20

VIN = 4.0V

VIN = 5.5V

10

-40

-15

10

35

60

85

Junction Temperature (°C)

FIGURE 2-48:

Load Regulation vs.

Junction Temperature (MCP1811X, VR = 1.0V).

 2018-2019 Microchip Technology Inc.

DS20006088B-page 14

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