Product category:
Discrete Power Devices
News Release from: Vishay Siliconix | Subject: Si3495DV etc
Edited by the Electronicstalk Editorial
Team on 17 June 2005
Low-voltage load switches reduce
on-resistance
Five new P-channel load switches are billed as the industry's first such devices designed to offer low on-resistance at a 1.5V gate drive.
Five new P-channel load switches, the industry's first such devices designed to offer low on-resistance at a 1.5V gate drive, have been released by Vishay Intertechnology To help minimise power consumption and increase battery life, many of the ASICs found in portable electronics systems are designed to operate at core supply voltages between 1.5 and 1.65V
This article was originally published on Electronicstalk on 17 Jun 2003 at 8.00am (UK)
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Until now, however, the lack of power MOSFETs with guaranteed turn-on operation below 1.8V has made it difficult for designers to take advantage of these low core supply voltages without the use of level-shifting circuitry, which adds complexity while increasing power consumption.
Vishay addresses this problem with the breakthrough power MOSFETs released today, which are the industry's first that can work directly from 1.5V core supply voltages with on-resistance as low as 45mohm.
With their low threshold voltage and guaranteed specifications at a 1.5V gate drive, the new devices eliminate the need for level-shifting circuitry and maximise the power-saving benefits of low operating voltages in battery-operated systems.
The five power MOSFETs released today include two devices in the Little Foot TSOP-6 with 20V (Si3495DV) and -8V (Si3499DV) drain-to-source breakdown voltages and on-resistance ratings at a 1.5V gate drive of 47 and 45mohm, respectively.
Three additional devices being released, the -8V Si8419DB, Si5499DC and Si1499DH, are available in the Micro Foot, 1206 8 ChipFET and SC-70 packages, respectively.
Like the new Little Foot devices, they are rated for a 1.5V gate drive.
With their exceptionally compact package designs, they also reduce footprint area dramatically and enable more flexible end-system design.
Samples and production quantities of the new P-channel load switches are available now, with lead times of 12 weeks for larger orders.
Pricing for US delivery in 100,000-piece quantities starts at $0.25.
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