UC3383

CMOS IC

UNISONIC TECHNOLOGIES CO., LTD

3 of 14

www.unisonic.com.tw

QW-R502-032.L



С, unless otherwise specified)

PARAMETER

SYMBOL

RATINGS

UNIT

12

V

Lx pin Voltage

12

V

CE Input Voltage

12

V

12

V

Lx pin Current

400

mA

SOT-89

500

mW

Power Dissipation

SOT-25

250

mW

Operating Junction Temperature

+125

°C

Ambient Operating Temperature

-30 ~ +80

°C

Storage Temperature

-40 ~ +125

°C

Note Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



UTC UC3383-2.0V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Output Voltage

1.950

2.000

2.050

V

Maximum Input Voltage

10

V

Oscillation Start-up Voltage

0.80

0.90

V

Oscillation Hold Voltage

0.70

V

Lx Limit Voltage

0.7

1.1

V

No-Load Input Current

4.3

8.6

μA

Supply Current 1(Note 2)

13.6

27.3

μA

Supply Current 2

1.9

3.9

μA

Lx Leakage Current

No external components,

1.0

μA

Lx Switch-On Resistance

9.1

13.7

Ω

Duty Ratio 1

DTY1

waveform

70

75

80

%

Duty Ratio 2

DTY2

50

55

60

%

Efficiency

EFFI

70

%

100

120

130

kHz

Maximum Oscillation Frequency

150

180

210

kHz

FOR 5-PINS PACKAGE ONLY

High

Existence of Lx Oscillation.

0.75

V

CE Voltage

Low

Disappearance of Lx Oscillation

0.20

V

High

0.25

μA

CE ”High” Current

Low

-0.25

μA

Stand-by Current

0.5

μA