TC1267

DS21378B-page 2

© 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

Thermal Impedance,

Junction-to-Ambient (

ESD Rating .......................................................... 2 KV

*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.

TC1267 ELECTRICAL SPECIFICATIONS

type specifications apply over full operating range.

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Supply Voltage

4.4

5.0

5.5

Ground Current

—

—

230

260

450

500

Reverse Leakage from

—-0.1

-1.0

µAV

Supply Voltage

3.0

3.3

3.6

V

Quiescent Current

—

—

50

—

70

100

—

—

60

—

80

120

—-0.1

-1.0

µAV

5V Detector

Low Threshold Voltage

—

3.75

3.90

—

—

4.05

5V Detector

Hysteresis Voltage

—

200

260

—

—

300

mV

(Notes 2, 3)

5V Detector

High Threshold Voltage

—

4.0

4.15

—

—

4.30

LDO Output Voltage

—

3.300

—

V

3.201

—

3.366

V4.4V

≤ V

3.000

——

V

0mA

≤ I

Output Current

400

—

—

mA

Line Regulation

—

-0.5

0.05

—

—

+0.5

Load Regulation

—

-1.5

-0.1

—

—

+0.5

Drive Voltage

—

—

—

V4.3V

—

—

35

—

150

200

mV

Note

1:

Ensured by design.

2:

See 5V Detect Thresholds, Figure 4-1.

3:

Recommended source impedance for 5V supply:

5V detect threshold transitions.

4:

In Application Circuit, Figure 3-1.

5:

See Timing Diagram, Figure 4-2.

6: