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.

-10

VR = 4.0V

-20 No CIN

VIN = 5.1V + 0.2Vpk-pk

-30

10 mA

-40

-50

-60

-70

-80

0.01

0.1

1

10

Frequency (kHz)

300 mA

100

1000

FIGURE 2-19:

Power Supply Ripple

Rejection vs. Frequency (MCP1812X, VR = 4.0V).

VR = 2.5V, VIN = 3.5V, IOUT = 100 μA to 10 mA

VOUT (AC Coupled, 100 mV/Div)

10 mA

100 μA

IOUT (DC Coupled, 5 mA/Div)

Time = 40 μs/Div

FIGURE 2-22:

Dynamic Load Step

(MCP1812X, VR = 2.5V).

VR = 1V, VIN = 2.4V, IOUT = 100 μA to 10 mA

VR = 2.5V, VIN = 3.5V, IOUT = 10 mA to 300 mA

VOUT (AC Coupled, 100 mV/Div)

10 mA

100 μA

IOUT (DC Coupled, 5 mA/Div)

Time = 40 μs/Div

FIGURE 2-20:

Dynamic Load Step

(MCP1812X, VR = 1.0V).

VR = 1V, VIN = 2.4V, IOUT = 10 mA to 300 mA

VOUT (AC Coupled, 100 mV/Div)

300 mA

10 mA

IOUT (DC Coupled, 200 mA/Div)

Time = 40 μs/Div

FIGURE 2-23:

Dynamic Load Step

(MCP1812X, VR = 2.5V).

VR = 3.3V, VIN = 4.3V, IOUT = 100 μA to 10 mA

VOUT (AC Coupled, 100 mV/Div)

300 mA

10 mA

IOUT (DC Coupled, 200 mA/Div)

Time = 40 μs/Div

FIGURE 2-21:

Dynamic Load Step

(MCP1812X, VR = 1.0V).

VOUT (AC Coupled, 100 mV/Div)

10 mA

100 μA

IOUT (DC Coupled, 5 mA/Div)

Time = 40 μs/Div

FIGURE 2-24:

Dynamic Load Step

(MCP1811X, VR = 3.3V).

 2018-2019 Microchip Technology Inc.

DS20006088B-page 10

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