Micrel Semiconductor Debuts New Boost Regulator IC, MIC2142
Micrel Semiconductor (San Jose, CA) has debuted the MIC2142, a micropower boost regulator IC capable of driving white LEDs and providing LCD bias. Intended for use in cellular phones and PDA applications, the new MIC2142 is housed in Micrel's IttyBitty SOT23-5 packaging. It requires three external components, and has a 2.2V to 16V input voltage range, allowing it to be powered from single-cell Li-ion or three-cell alkaline, NiMH or NiCd batteries.
Micrel claims that the MIC2142 is efficient over a wide range of load currents and applications. The device features a quiescent current of 85uA. With its on-resistance integrated 200mA switch, Micrel maintains that the device can drive up to four white LEDs. The device's output voltage can be adjusted up to 22V, and fixed output voltage options of 5V, 12V and 15V are planned to be available soon. In addition to boost topology, the MIC2142 can also be configured for use in SEPIC and flyback applications.
“The MIC2142's high efficiency, small physical size and ease of use helps designers maximize battery life while saving valuable board area," commented Tony Grizelj, Micrel's marketing manager for power products.
The MIC2142BM5 is priced at $1.50 each when purchased in 1,000-piece quantities. Samples are available from stock, and production quantities are stock to 12 weeks ARO.
