MCP1811 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

MCP1811

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 = 2.5V, VIN = 3.5V to 4.5V, IOUT = 300 mA

4.5V

3.5V

VIN (DC Coupled, 1V/div)

VR = 4V, VIN = 5V to 5.5V, IOUT = 10 mA

5.5V

5V

VIN (DC Coupled, 500 mV/div)

VOUT (AC Coupled, 50 mV/Div)

Time = 200 μs/Div

FIGURE 2-31:

Dynamic Line Step

(MCP1812X, VR = 2.5V).

VR = 3.3V, VIN = 4.3V to 5.3V, IOUT = 10 mA

5.3V

4.3V

VIN (DC Coupled, 1V/div)

VOUT (AC Coupled, 50 mV/Div)

Time = 200 μs/Div

FIGURE 2-32:

Dynamic Line Step

(MCP1811X, VR = 3.3V).

VR = 3.3V, VIN = 4.3V to 5.3V, IOUT = 150 mA

5.3V

4.3V

VIN (DC Coupled, 1V/div)

VOUT (AC Coupled, 50 mV/Div)

Time = 200 μs/Div

FIGURE 2-33:

Dynamic Line Step

(MCP1811X, VR = 3.3V).

VOUT (AC Coupled, 20 mV/Div)

Time = 200 μs/Div

FIGURE 2-34:

Dynamic Line Step

(MCP1811X, VR = 4.0V).

VR = 4V, VIN = 5V to 5.5V, IOUT = 150 mA

5.5V

5V

VIN (DC Coupled, 500mV/div)

VOUT (AC Coupled, 20 mV/Div)

Time = 200 μs/Div

FIGURE 2-35:

Dynamic Line Step

(MCP1811X, VR = 4.0V).

VR = 1V, VIN = 0V to 2.4V, IOUT = 100 μA

2.4V

0V

VIN (DC Coupled, 1V/div)

VOUT (DC Coupled, 500 mV/Div)

Time = 100 μs/Div

FIGURE 2-36:

Start-up from VIN

(MCP1812X, VR = 1.0V).

 2018-2019 Microchip Technology Inc.

DS20006088B-page 12

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