P2680

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 5

www.unisonic.com.tw

QW-R502-A32.b



TYPICAL APPLICATION CIRCUIT

Figure 1. Shows an example UTC P2680 application circuit generating a 2.5V/2A output.

VIN

EN

GND

COMP

FB

SW

UTC

+

ON/OFF

2.5V/2A

2.2nF

8.2k

(Optional)

13k

12k

L1 10µH/3A

22µF/10V

Ceramic, or

47µF/6.3 SP

Cap

BST

0.1µF

SS

10µF/35V

Typical Compensation for Different Output Voltages and Output Capacitors

2.5V

22μF Ceramic

8.2kΩ

2.2nF

None

3.3V

22μF Ceramic

12kΩ

1.5nF

None

5V

22μF Ceramic

15kΩ

1.5nF

None

2.5V

47μF SP CAP

15kΩ

1.5nF

None

3.3V

47μF SP CAP

15kΩ

1.8nF

None

5V

47μF SP CAP

15kΩ

2.7nF

None

2.5V

470μF/6.3V/30mΩ

15kΩ

15nF

1nF

3.3V

470μF/6.3V/30mΩ

15kΩ

22nF

1nF

5V

470μF/6.3V/30mΩ

15kΩ

27nF

None

UTC assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or

other parameters) listed in products specifications of any and all UTC products described or contained

herein. UTC products are not designed for use in life support appliances, devices or systems where

malfunction of these products can be reasonably expected to result in personal injury. Reproduction in

whole or in part is prohibited without the prior written consent of the copyright owner. The information

presented in this document does not form part of any quotation or contract, is believed to be accurate

and reliable and may be changed without notice.