Vishay – New 12V / 30V TrenchFET p-channel power MOSFETs in compact packages (SiA447DJ)Oct 5 2012 - Power [More Power Articles]
Vishay has extended its TrenchFET Gen III family of p-channel power MOSFETs with a new single 12V device in the thermally enhanced 2mm x 2mm PowerPAK SC-70 package and a single 30V device in the 3mm x 1.8mm PowerPAK ChipFET package with a low 0.8mm profile. Both MOSFETs combine their compact footprints with the industry’s lowest on-resistance at 4.5V for their respective form factors, says the company.
Offered in the ultra-small PowerPAK SC-70 package, the 12V SiA447DJ features an on-resistance of 13.5mohm at 4.5V, which is 12% lower than the closest competitor. In addition, the SiA447DJ offers low on-resistance of 19.4mohm at 2.5V, 35mohm at 1.8V, and 71mohm at 1.5V. The 30V Si5429DU is the first Gen III p-channel MOSFET in the 3mm x 1.8mm form factor, and its on-resistance of 22mohm at 4.5V is 35 % lower than the closest competing device. In addition, the MOSFET offers an industry-low on-resistance of 15mohm at 10V.
The SiA447DJ and Si5429DU targets battery or load switching in power management applications for portable electronics such as smartphones, tablet PCs, and mobile computing devices. The MOSFETs’ compact packages save PCB space in these products while their low on-resistance translates into lower conduction losses for reduced power consumption and longer battery life between charges. The MOSFETs’ low on-resistance also means a lower voltage drop across the load switch to prevent unwanted under-voltage lockout.
The 30V rating of the Si5429DU makes it the device of choice for end products with multi-cell Li-ion batteries, while the SiA447DJ will be used when size and lower on-resistance are critical. In addition, the SiA447DJ’s on-resistance ratings down to 1.5V allow the device to work with the lower-voltage gate drives and lower bus voltages common in handheld devices, saving the space and cost of level-shifting circuitry.
The SiA447DJ and Si5429DU are 100% Rg-tested, and also RoHS-compliant and halogen-free, says the company.More news from Vishay