TC2054_06 Datasheet, PDF(6/18 Page) Microchip Technology – 50 mA, 100 mA, and 150 mA CMOS LDOs with Shutdown and Error Output

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TC2054_06 Datasheet, PDF (6/18 Pages) Microchip Technology – 50 mA, 100 mA, and 150 mA CMOS LDOs with Shutdown and Error Output

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TC2054/2055/2186

Note: Unless otherwise indicated, VIN = VR + 1V, IL = 100 ÂµA, COUT = 3.3 ÂµF, SHDN > VIH, TA = +25Â°C.

100mV/DIV

V IN = 3.8V

VOUT = 2.8V

C IN = 1 ÂµF Ceramic

C OUT= 1 ÂµF Ceramic

Frequency = 1 KHz

V OUT

100mV / DIV

V IN = 3.0V

VOUT = 2.8V

C IN = 1ÂµF Ceramic

C OUT= 10ÂµF Ceramic

Frequency = 10KHz

V OUT

Load Current

150mA

Load

100ÂµA

FIGURE 2-13:

Load Transient Response.

Load Transient Response in Dropout Mode

100mV/DIV

VOUT

150mA

VIN = 3.105V

VOUT = 3.006V

CIN = 1ÂµF Ceramic

COUT = 1ÂµF Ceramic

RLOAD = 20Î©

100ÂµA

FIGURE 2-14:

Dropout Mode.

Load Transient Response in

50mV / DIV

VOUT = 2.8V

C OUT= 1Î¼F Ceramic

C BYP = 470pF

I OUT= 100Î¼A

V OUT

2V / DIV

Input Voltage

FIGURE 2-15:

Line Transient Response.

Load Current

150mA

Load

100ÂµA

FIGURE 2-16:

Load Transient Response.

V IN = 4.0V

VOUT = 3.0V

C OUT = 10Î¼F

C BYP = 0.01Î¼F

I OUT = 100ÂµA

V SHDN

V OUT

FIGURE 2-17:

Shutdown Delay.

V SHDN

V IN = 4.0V

VOUT = 3.0V

C OUT = 10Î¼F

C BYP = 0.01Î¼F

I OUT = 100ÂµA

V OUT

FIGURE 2-18:

Shutdown Wake-up Time.

DS21663C-page 6

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