© 2002 Microchip Technology Inc.

DS21379B-page 3

TC1268

TC1268 ELECTRICAL SPECIFICATIONS

(CONTINUED)

type specifications apply for junction temperatures of -40°C to +125°C.

ERROR Output

Minimum Operating Voltage

1.0

—

—

V

Output Logic Low Voltage

—

—

400

mV

1 mA Flows to ERROR

ERROR Threshold Voltage

—

—V

Note 1:

2:

3:

Regulation is measured at a constant junction temperature using low duty cycle pulse testing. Load regulation is tested over a load range from

0.1mA to the maximum specified output current. Changes in output voltage due to heating effects are covered by the thermal regulation

specification.

4:

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.

5:

Thermal Regulation is defined as the change in output voltage at a time T after a change in power dissipation is applied, excluding load or

6:

The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction temperature and the

thermal shutdown. Please see Section 4.0 Thermal Considerations for more details.

7:

8:

6