TC2054 查看數據表（PDF） - Microchip Technology

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TC2054

50 mA, 100 mA, and 150 mA CMOS LDOs with Shutdown and Error Output

Microchip Technology 

TC2054/2055/2186

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

100mV/DIV

V IN = 3.8V

VOUT = 2.8V

C IN = 1 μF Ceramic

C OUT= 1 μF Ceramic

Frequency = 1 KHz

V OUT

100mV / DIV

V IN = 3.0V

VOUT = 2.8V

C IN = 1μF Ceramic

C OUT= 10μF Ceramic

Frequency = 10KHz

V OUT

Load Current

150mA

Load

100μA

FIGURE 2-13:

Load Transient Response.

Load Transient Response in Dropout Mode

100mV/DIV

VOUT

150mA

VIN = 3.105V

VOUT = 3.006V

CIN = 1μF Ceramic

COUT = 1μF Ceramic

RLOAD = 20Ω

100μA

FIGURE 2-14:

Dropout Mode.

Load Transient Response in

50mV / DIV

2V / DIV

Input Voltage

VOUT = 2.8V

C OUT= 1μF Ceramic

C BYP = 470pF

I OUT= 100μA

VOUT

6V

4V

FIGURE 2-15:

Line Transient Response.

Load Current

150mA

Load

100μA

FIGURE 2-16:

Load Transient Response.

V IN = 4.0V

VOUT = 3.0V

C OUT = 10μF

C BYP = 0.01μF

I OUT = 100μA

VSHDN

VOUT

FIGURE 2-17:

Shutdown Delay.

VSHDN

V IN = 4.0V

VOUT = 3.0V

C OUT = 10μF

C BYP = 0.01μF

I OUT = 100μA

VOUT

FIGURE 2-18:

Shutdown Wake-up Time.

© 2009 Microchip Technology Inc.

DS21663D-page 7

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