Batteries and Portable Power

Fairchild Introduces MicroFET™ MOSFETs To Extend Battery Life

Fairchild Semiconductor introduced its FDMA1024NZ and FDMA410NZ dual N-Channel and single N-Channel MOSFETs, which the company states extend battery life in applications such as cellular handsets, electric toothbrushes and shavers.

Packaged in thermally enhanced 2 x 2 x 0.8mm MicroFET MLP packaging, suitable for space-constrained applications, they are said to offer excellent power dissipation and ultra-low RDS(ON) to conserve battery life. These MicroFET MOSFETs are described as instrumental in addressing the power challenges today’s feature-rich portable applications.

Fairchild claims the FDMA410NZ offers portable designers the industry’s lowest RDS(ON) of 23 mΩ at 4.5V, in slim 2 x 2mm packaging. Both of these products provide guaranteed RDS(ON) ratings with VGS values as low as 1.5V, making them well suited for lithium ion or primary cell battery applications.

Fairchild states that its PowerTrench® MOSFET process technology yields exceptionally low values for RDS(on), total gate charge (QG) and Miller Charge (QGD) – enhancements that are said to result in superior switching performance and thermal efficiencies. Its advanced MicroFET packaging is said to deliver excellent power dissipation and conduction loss characteristics compared to conventional MOSFET packaging.

These MOSFETs are well suited for low-voltage switching, power management and battery charging systems. They are priced (each, 1000 pcs.) as follows: FDMA1024NZ at US $0.42, and FDMA410NZ at US $0.38, with a delivery of10-12 weeks ARO.

Fairchild Semiconductor Corp.
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