ON Semiconductor Introduced a New Family of LVFR

Published:2012/1/30 0:38:00 Author:Phyllis From:SeekIC

ON Semiconductor has introduced a new family of 100 volt trench-based low forward voltage Schottky rectifiers (LVFR) for applications like switching power supplies for notebook adapters or flat panel displays, reverse battery protection circuits, and high frequency DC-DC converters.

Consists of NTST30100CTG, NTST20100CTG and NTSB20U100CTG, the new family utilize a trench topology that enables exceptionally low forward voltage drop and reduced leakage current, which results in low conduction losses and a substantial improvement in circuit efficiency.

With a trench MOS structure that enables an enhanced conduction zone under forward bias, the LVFR family resulting in significant reduction in forward voltage drop. Under reverse bias, this structure creates a "pinch-off" effect resulting in reduced leakage current. Unlike planar Schottky rectifiers, the LVFR’s switching performance is strong across their entire operating junction temperature range of -40°C to +150°C.

To demonstrate the advantages of LVFR, the company compared the performance of its 30A, 100V LVFR (NTST30100SG) with a standard 30A, 100V planar Schottky rectifier. Data measured in a 65W power adapter showed a 1% efficiency improvement using LVFR versus planar Schottky. This significant increase in efficiency can allow the power supply designer to meet regulatory requirements without the added complexity and cost of solutions, such as synchronous rectification.

About ON Semiconductor:

ON Semiconductor Corporation designs, manufactures, and markets a portfolio of semiconductor components that addresses the design needs of electronic systems and products worldwide. Its product lines include automotive and power group, computing and consumer products, digital and mixed-signal products group, and standard products. The company sells its products to original equipment manufacturers, distributors, and electronic manufacturing service providers.

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