Switching Power Supply       

Power system optimization
  		 

General Description

SiTI's supervisor IC can accurately monitor and control the outputs of the switching power supply system. Our products are completely integrated requiring only few external components and reducing PCB board space for today's advance power supply.

Approved by Dell, HP, IGM, and Fujitsu-Siemens, SiTI's power supervisor series offers a high-quality and cost-effective solution to meet your design challenges. SiTI also offers competitive pricing, samples, technical support within 24 hours that will bring you every success!

　

Applications

The secondary monitoring IC and fan speed control series are specially designed for Desktop PC power supply. They can also be used in other applications such as Set-top-box/DVD player/ Server/ Redundant/ X-BOX power.

　
    Part Number Application Main features
       PS113 　 250W Power supply for desktop PC, server, and DVD player 　 3-channel secondary monitoring IC(3.3V, 5V, 12V OV/UV protection)  
       PS113A 　 250W Power supply for desktop PC, server, and DVD player 　 3-channel secondary monitoring IC(3.3V, 5V, 12V OV/UV protection)  
       PS222S 　 250W~600W Power supply for desktop PC and server 　 3- channel secondary monitoring IC with over-current protection and an additional 12V OCP channel  
       PS223 　 250W~600W Power supply for desktop PC and server 　 4-channel secondary monitoring IC with over-temperature protection  
       PS236 　 250W~600W Power supply for Projector 　 3-channel secondary monitoring IC with over-current protection and an additional OCP channel  
       PS121 　 Reset circuit for microcomputer 　 Voltage detecting/system resetting IC  
       FC120 　 Power supply cooling fan: NLX/ATX/PS98 fan control compliant 　 Linear fan speed control by temperature sensing  
       FC121 　 Power supply cooling fan: NLX/ATX/PS98 fan control compliant 　 Linear fan speed control by programmable input and temperature sensing  
       FC122 　 Power supply cooling fan: NLX/ATX/PS98 fan control compliant 　 Linear fan speed control and adjustable fan start voltage  
       ST1141A 　 Power supply cooling fan: NLX/ATX/PS98 fan control compliant 　 Adjustable I/O voltage mapping for wide range of application design  


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