TC57

DS21437B-page 2

© 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Input Voltage ........................................................+12V

Output Current .................................................... 50mA

Power Dissipation.............................................150mW

Operating Temperature Range............. -40°C to +85°C

Storage Temperature Range .............. -40°C to +150°C

*Stresses above those listed under "Absolute Maximum

Ratings" may cause permanent damage to the device. These

are stress ratings only and functional operation of the device

at these or any other conditions above those indicated in the

operation sections of the specifications is not implied.

Exposure to Absolute Maximum Rating conditions for

extended periods may affect device reliability.

TC55 ELECTRICAL SPECIFICATIONS

Figure 3-1, unless otherwise noted. (Note 2)

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Input Voltage

—

—

8

V

Voltage on EXT Output

—

—

8

V

Output Voltage

Load Regulation

-60

—

60

mV

1mA

Dropout Voltage

—

100

—

mV

Supply Current

—

50

80

µAV

Shutdown Supply Current

—

—

0.6

µAV

—

0.1

0.3

%/V

(Note 3)

∆V

—

±100

—

ppm/°C

(Note 3)

EXT Pin Leakage Current

—

—

0.5

µA

EXT Sink Current

—

—

25

mA

Note 4

SHDN Input High Logic Threshold

1.5

—

—

V

SHDN Input Low Logic Threshold

—

—

0.25

V

——

0.1

-0.2

-0.05

0

Note

1:

2:

Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at a

1V differential.

3:

Varies with type of pass transistor used. Numbers shown are for the test circuit of Figure 3-1.

4: