Micrel Intros MIC2168 and MIC2169 DC-DC Controllers

Micrel Semiconductor Inc. (San Jose, CA), a leader in power management and high-speed communications integrated circuits, released its new MIC2168 and MIC2169 high-speed, dc-dc synchronous buck control ICs, which provide point-of-load dc-dc conversion for networking, telecom, server, set-top box and storage applications.

The MIC2168 operates at a fixed 1 MHz pulse-width modulated operating frequency. The MIC2169 operates at 500 KHz. Both devices are capable of efficiencies over 95 percent. The MIC2168 and MIC2169 operate from a wide 3 V to 14.5 V input-voltage range allowing the devices to step voltages down in systems with 3.3 V, 5 V and 12 V power busses. With a programmable minimum output voltage of 0.8 V, the MIC2168/9 can power the latest-generation CPUs, DSPs, FPGAs and ASICs. The internal gate drivers allow the devices to power external MOSFETs that can provide 20 A of output current.

The MIC2168 and MIC2169 are available in the MSOP-10 package. The devices are priced at $1.92 and $1.74 in 1,000-piece quantities, respectively. Samples are available from stock, and production quantities are stock to 12 weeks ARO.