San Jose, Calif. - Micrel says its MIC2215, for cellular phones, PDAs, PCs and peripherals such as wireless LAN cards, is one of the industry's highest performing triple low-dropout (LDO) regulators. It's available in triple 3-volt, 3/2.8/2.8 volt, and adjustable output versions, accurate to ±2 percent over temperature.
"The IC's low dropout, high PSRR (power supply ripple rejection), and low ground current, coupled with low noise and fast turn-on time (30 microseconds), make it an ideal solution for today's most demanding portable applications," said Steve Knoth, LDO product manager. Each LDO, working from a 2.25- to 5.5-volt input and providing up to 250 mA, offers a dropout of just 100 mV typical at 150 mA. The chip's PSRR is more than 70 dB at 1 kHz and ground current is less than 110 microamps per output at light load. The chip is a μCap design, which ensures a stable output with small ceramic output capacitors.
The MIC2215 is offered in a 4-by-4 mm 16-pin MLF package. This package is approximately the same footprint as an
MSOP-8/10 lead package, but with a thermal resistance of 45°C/W (junction to ambient) as compared to the MSOP's 200°C/W rating, according to the company.
The MIC2215 is currently sampling with volume quantities
available within 10 to 12 weeks. The chip is priced starting at $1.50 in 1k quantities.