TC110

DS21355B-page 2

© 2002 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings*

EXT Output Current ................................... ±100mA pk

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

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

Storage Temperature Range .............. -40°C to +125°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.

TC110 ELECTRICAL SPECIFICATIONS

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Operating Supply Voltage

2.0

—

10.0

V

Note 2

Start-Up Supply Voltage

—

—

0.9

V

—

—

0.7

V

Boost Mode Supply Current

—

—

—

—

—

—

120

130

180

50

50

70

190

200

280

90

100

120

µAV

Standby Supply Current

—

—

—

—

—

—

20

20

22

11

11

11

34

35

38

20

20

22

Shutdown Supply Current

—

0.05

0.5

µA SHDN =GND, V

Oscillator Frequency

255

85

300

100

345

115

kHz

Output Voltage

x0.975

x1.025

VNote 3

DTYMAX

Maximum Duty Cycle

(PWM Mode)

——

92

%

DTYPFM

Duty Cycle (PFM Mode)

15

25

35

%

SHDN Input Logic High

0.65

—

—

V

SHDN Input Logic Low

—

—

0.20

V

REXTH

—

—

—

32

29

20

47

43

29

Ω

REXTL

EXT ON Resistance to GND

—

—

—

20

19

13

30

27

19

Ω

η

Efficiency

—

84

—

%

Note

1:

2:

See Application Notes “Operating Mode” description for clarification.

3: