Product Marking information:

Block Diagram

LESHAN RADIO COMPANY, LTD.

LESHAN RADIO COMPANY, LTD.

3/9

12

3

54

SC70-5

12

3

54

SOT23-5A

12

3

54

SOT23-5B

Output current & EN availability

Output voltage

Year of manufacturing

Week of mannufacturing

For example:

LR8555 with output current 150mA,SOT23-5

package with an EN pin its position

is c

The year of manufacturing: "5" stands for year 2005,

"6" stands for year 2006,and " 0 " for year 2010.

Code

Iout

EN

Code

Iout

EN

A

50mA

No

A

50mA

Yes

B

100mA

No

B

100mA

Yes

C

150mA

No

C

150mA

Yes

D

200mA

No

D

200mA

Yes

E

250mA

No

E

250mA

Yes

F

300mA

No

F

300mA

Yes

G

350mA

No

G

350mA

Yes

H

400mA

No

H

400mA

Yes

I

450mA

No

I

450mA

Yes

J

500mA

No

J

500mA

Yes

Code Week of Mfg Code Week of Mfg Code Week of Mfg Code Week of Mfg Code Week of Mfg

A1

L

12

W

23

H

34

S

45

B2

M

13

X

24

I

35

T

46

C3N

14

Y

25

J

36

U

47

D4

O

15

Z

26

K

37

V

48

E5P

16

A

27

L

38

W

49

F6

Q

17

B

28

M

39

X

50

G7

R

18

C

29

N

40

Y

51

H8

S

19

D

30

O

41

Z

52

I9

T

20

E

31

P

42

J10

U

21

F

32

Q

43

K11

V

22

G

33

R

44

Code

Vout

Code

Iout

Code

Iout

2

1.2V

7

2.7V

2

4.2V

3

1.3V

8

2.8V

3

4.3V

4

1.4V

9

2.9V

4

4.4V

5

1.5V

0

3.0V

5

4.5V

6

1.6V

1

3.1V

6

4.6V

7

1.7V

2

3.2V

7

4.7V

8

1.8V

3

3.3V

8

4.8V

9

1.9V

4

3.4V

9

4.9V

0

2.0V

5

3.5V

0

5.0V

1

2.1V

6

3.6V

2

2.2V

7

3.7V

3

2.3V

8

3.8V

4

2.4V

9

3.9V

5

2.5V

0

4.0V

6

2.6V

1

4.1V

+

-

CE

GND

Vref

Current Limit