Microsemi

Integrated Products Division

11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570

Page 9

Copyright

© 2000

Rev. 1.0e, 2005-03-03

LX1882

Charge Pump Doubler with Linear Regulator

I N T E GRA T ED

PR ODUC T S

Table 3: Factory Installed Component List for the LX1882 Evaluation Board

Quantity

Part

Reference

Description

Manufacturer

Part

Number

1

C1

Capacitor, Ceramic, 0.22uF, 16V, 10%, 0805 Type SMT

Panasonic

ECJ2VB1C224K

3

C2 - C4

Capacitor, Ceramic X5R, 4.7uF, 25V, 1210 Type SMT

Taiyo Yuden

CETMK325BJ475MN

4

D1 - 4

White LED

Chicago Miniature

CMD333UWC

3

J1 – J3

Terminal Battery Clip, Positive Button, AA Contacts

Keystone

596

3

J4 – J6

Terminal Battery Clip, Negative Button, AA Contacts

Keystone

590

1

P2

Header, 2-Pin

Molex

42375-2

1

R1

Resistor, 46.4K, 1/10W,1%, 0805 Type SMT

Panasonic

ERJ6EKF4642

1

R2

Resistor, 14.3K, 1/10W,1%, 0805 Type SMT

Panasonic

ERJ6EKF1432

4

R3 - R6

Resistor, 30.1, 1/10W,1%, 0805 Type SMT

Panasonic

ERJ6EKF30R1

1

R8

Resistor, 10.0K, 1/10W,1%, 0805 Type SMT

Panasonic

ERJ6EKF1002

2

S1, S2

Switch, SPDT, 1 position, SMT DIP Type

CTS

204-121ST

9

TP1 – TP9

Terminal, Surface Mount, Compact Style Test Point

Keystone

5016

1

U1

IC, LX1882 Charge Pump Doubler with Linear Regulator

Microsemi

LX1882-00CDM

FB

GND

GND

GND

GND

C2

4.7µF

25V

VOUT

SHDN

CPO

GND

VIN

SHDN

FB

VOUT

C+

C4

0.1µF

25V

R3

30.1

C-

R2

14.3k

R1

46.4K

R8

10.0k

C1

0.22µF

16V

C3

4.7µF

25V

External VCC

+

-

J2

J1

"AA" Battery

J3

"AA" Battery

"AA" Battery

R4

30.1

R5

30.1

R6

30.1

D1

D2

D3

D4

S1

S2

CPO

VIN

V

SET

V

FB

V

I

LED

VBAT

EXT

ENABLE

DISABLE

Figure 6 – LX1882-00 Evaluation Board Schematic; LED Driver Application