Part Number

Topology

Conduction

Mode

Dimming

FET

Pmax/Imax

CC Precision

Package

Date

Sheet

WS3110

Single-stage APFC PSR

BCM

N/A

External

36W

�5%

SOP8/DIP8

PDF

WS3230

PSR QR APFC

BCM

N/A

External

36W

�5%

SOT23-5

PDF

WS3231

PSR QR APFC

BCM

N/A

Internal

5/9W

�5%

SOP8

PDF

WS3232

PSR QR APFC

BCM

N/A

Internal

9/12W

�5%

DIP8

PDF

WS3240

PSR

DCM

N/A

Internal

4W

�5%

TO-92

PDF

WS3220A

PSR

DCM

N/A

Internal

5W

�5%

SOP8

PDF

WS3221B

PSR

DCM

N/A

Internal

3/5W

�5%

SOP8

PDF

WS3221

PSR

DCM

N/A

Internal

5/7W

�5%

SOP8

PDF

WS3222

PSR

DCM

N/A

Internal

12W

�5%

DIP8

PDF

WS3252L

PSR

DCM

N/A

External

 36W

�5%

SOT23-6/DIP8 

PDF

WS3253L

PSR

DCM

N/A

Internal 

5/8W 

�5%

SOP8 

PDF

WS3254L

PSR

DCM

N/A

Internal 

8/12W 

�5%

DIP8 

PDF

WS3255L

PSR

DCM

N/A

Internal

12/18W 

�5%

DIP8 

PDF

WS3256L

PSR

DCM

N/A

Internal

18/24W

�5%

DIP8 

PDF

WS2580

PSR

DCM

N/A

External

5/7W

�5%

SOT23-6

PDF

WS2585

PSR

DCM

N/A

Internal

5/7W

�5%

DIP8

PDF