Small high performance MOSFETs in DFN package
Nexperia, the expert in essential semiconductors, today announced the release of a new range of 20 V and 30 V MOSFETs in the world’s smallest DFN package, the DFN0603. Nexperia already offers ESD protection devices in this package, but has now succeeded in bringing it to their MOSFET portfolio, a feat as yet unmatched in the industry.
Next generation wearable and hearable devices are incorporating new levels of artificial intelligence (AI) and machine learning (ML), creating several challenges for product designers. Firstly, available board space is at a premium as functionality is added, plus heat dissipation becomes a problem as power consumption increases.
Smartwatches have a lot of functionality packed into them, but relatively speaking there is less of a space premium compared to an earbud or even smart jewellery. For a pair of wireless earbuds Evan though most of the functionality comes from embedded software features, there is still a lot of hardware that needs to be integrated into the final design — from the microphone and speaker through to RF components for Bluetooth communications. For all wearable and hearable devices, heat dissipation is a key issue, so low RDS(on) for MOSFETs is key to efficient operation.
Nexperia has drawn on its decades of experience as an industry leader in the production of discrete components and designed this innovative range of tiny MOSFETs to successfully overcome both concerns. The ultra-low-profile DFN0603 package, measuring only 0.63- x 0.33- x 0.25-mm, uses 13 percent less space than MOSFETs in the next smallest package (DFN0604). Impressively, this size reduction has been achieved without compromising device performance – in fact the RDS(on) of these devices has been reduced by 74 percent, helping to improve efficiency and thereby enabling wearable equipment designers to achieve even greater power density.
This new range of tiny MOSFETs includes:
- PMX100UN 20 V, N-channel Trench MOSFET
- PMX100UNE 20 V, N-channel Trench MOSFET with 2kV ESD protection (HBM)
- PMX300UNE 30 V, N-channel Trench MOSFET
- PMX400UP 20 V, P-channel Trench MOSFET
Typical applications include battery switches, high-speed line drivers, switching circuits and high-side load switches.
Nexperia has plans to add two more MOSFETs to this range later in 2022.
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