TC1070/TC1071/TC1187

DS21353D-page 2

© 2007 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Input Voltage .........................................................6.5V

Power Dissipation................Internally Limited (Note 5)

Storage Temperature..........................-65°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.

ELECTRICAL SPECIFICATIONS

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

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Input Operating Voltage

2.7

—

6.0

V

Note 6

Maximum Output Current

50

100

150

—

—

—

—

—

—

mA

TC1070

TC1071

TC1187

Adjustable Output

Voltage Range

—5.5

V

Reference Voltage

1.165

1.20

1.235

V

—

40

—

ppm/°C

Note 1

Line Regulation

—

0.05

0.35

Load Regulation

TC1070; TC1071

TC1187

—

—

0.5

0.5

2

3

(Note 2)

Dropout Voltage

TC1071; TC1187

TC1187

—

—

—

—

—

2

65

85

180

270

—

—

120

250

400

mV

Supply Current

—

50

80

Shutdown Supply Current

—

0.05

0.5

μASHDN = 0V

PSRR

Power Supply Rejection Ratio

—

64

—

dB

Output Short Circuit Current

—

300

450

mA

Thermal Regulation

—

0.04

—

V/W

Note 4

Thermal Shutdown Die Temperature

—

160

—

°C

Thermal Shutdown Hysteresis

—

10

—

°C

eN

Output Noise

—

260

—

nV/

√Hz

SHDN Input

SHDN Input High Threshold

45

——

Note 1:

2:

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

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

regulation specification.

3:

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

4:

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

5:

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

thermal shutdown. Please see Section 5.0 “Thermal Considerations” for more details.

6: