Micrel Semiconductor, Inc.
San Jose, CA 95131
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Power Controllers support PCI Express Specification v2.0.
Providing support for 12 V, 3.3 V, and 3.3 VAUX supplies, MIC2341 and MIC2342 Dual Channel Hot-Plug Power Controllers are equipped with programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions. ICs support 2 independent PCI Express slots and offer integrated power MOSFETS for 3.3 VAUX rails with low backfeed on MAIN +12 V and +3.3...
Read More »Synchronous Buck Regulator promotes battery efficiency.
Contained in 3 x 3 mm MLFÃ-® package, MIC2238 2.5 MHz dual 800 mA synchronous buck step-down regulator features Trickle Mode(TM) enabling light load efficiency for Li-Ion battery powered systems. Device offers input voltage range from 2.5-5.5 V and ultra-low quiescent current of 28 Ã-µA at light loads. Operation modes include Variable frequency Trickle Mode(TM) operation for highest light...
Read More »Transceiver targets BPON/GPON/GEPON/EPON applications.
Single-chip programmable SERDES, Model SY87725L, supports multiple Passive Optical Network standards and rates including asymmetric Gigabit Passive Optical Network with data rates up to 2.5 Gbps on receive side and 1.25 Gbps on transmit side. It offers complete clock recovery and data retiming circuitry, along with integrated 4-bit serial-to-parallel data converter on receive side. On transmit...
Read More »Receiver IC suits radio frequency applications.
With operating frequency from 300-350 MHz, 3.3 V QwikRadioÃ-® MICRF213 offers designers low current consumption of 3.9 mA at 315 MHz. It features up to -110 dBm sensitivity and functions as super-heterodyne receiver for OOK and ASK modulation up to 7.2 kbps at 315 MHz. Down-conversion mixer provides image rejection to optimize communication distance. Four filter bandwidths may be selected...
Read More »Post Amplifier is designed for fiber optic transceivers.
Model SY88973BL low-power limiting post amplifier offers multi-rate capability from 622 Mbps up to 3.2 Gbps operation. It incorporates low loss-of-signal, open-collector TTL output with external 4.75-10k micron pull-up resistor, and also features internal 50 micron data input and low-noise 50 micron CML data output. Available in 3 x 3 mm 16-pin MLFÃ-® package, device operates from single +3.3...
Read More »Switching Regulator IC suits low-noise applications.
Housed in 4 x 6 mm MLFÃ-® package, 3 A SuperLNR MIC38300 Low Noise Regulator produces less than 5 mW of output noise and 70 dB of PSRR. Ultra-fast dynamic performance allows unit to maintain less than 30 mV of output voltage deviation even during fast load transients. Target markets include point-of-load and digital IC power regulators for networking, servers, wireless base stations,...
Read More »Synchronous Buck Regulators offer light load efficiency.
Supplied in 2 x 2 mm MLFÃ-® package, MIC23050/1 are 4 MHz, 500 mA synchronous buck (step-down) regulators suitable for portable applications. Hyper Light Load(TM) enables these DC/DC converters to achieve over 85% efficiency at 1 mA while offering minimal ripple across all loads. Standard features include 2.7-5.5 V input, 0.6-2.5 V preset output voltage options, and 20 Ã-µA quiescent...
Read More »Boost LED Driver targets portable applications.
Housed in 3 x 3 mm MLFÃ-® package, 7 W Model MIC2298 offers switch current of 3.5 A, allowing device to deliver 1 A into 2 high-brightness WLEDs connected in series. Brightness can be controlled by applying voltage or PWM signal to brightness pin. Featuring input voltage of 2.5-10 V, DC-DC converter IC operates at fixed 1 MHz switching frequency with greater than 86% efficiency. Device is...
Read More »FET Drivers are targeted for power supply applications.
Suited for 24 and 48 V bus applications, Series MIC4100, 100 V drivers drive high and low side N-channel MOSFETS in half bridge and synchronous buck topologies. ICs are rated for 3 and 2 A sinking and sourcing peak currents and feature rise and fall times of 10 and 6 nsec combined with propagation delays of 24 nsec. They offer maximum supply voltage of 16 V, integrated bootstrap diode supporting...
Read More »PWM Buck Regulator measures 3 x 3 mm.
Suited for xDSL modems and satellite radios, Model MIC4722 MLFÃ-® PWM buck regulator features 2.7 MHz operating frequency that allows users to use combination of 470 nH inductor and 4.7 mF output capacitor in their application. Internal compensation allows for high transient response, while low resistance integrated p-channel MOSFET enables the chip to deliver up to 3 A. Output voltage can be...
Read More »Power Controllers support PCI Express Specification v2.0.
Providing support for 12 V, 3.3 V, and 3.3 VAUX supplies, MIC2341 and MIC2342 Dual Channel Hot-Plug Power Controllers are equipped with programmable gate voltage slew-rate control, voltage supervision, programmable current limit, and circuit breaker functions. ICs support 2 independent PCI Express slots and offer integrated power MOSFETS for 3.3 VAUX rails with low backfeed on MAIN +12 V and +3.3...
Read More »Micrel Signs Multimillion Dollar Contract with Commercial Solar Cell Company
San Jose, Calif., Nov. 19, 2007 - Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today announced that it has signed a multimillion dollar, long-term contract to supply commercial solar cells. Micrel's unique processing capability enables the creation of the highest efficiency solar cells presently available. The partnership will...
Read More »Micrel Names New Vice President of Analog Marketing
San Jose, Calif., Nov. 6, 2007 - Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today announced that Andrew Cowell has been named the Company's new Vice President of Analog Marketing. Mr. Cowell will be responsible for overseeing the marketing activities of Micrel's entire Analog product line, which accounts for more than...
Read More »Micrel's Vice President of Operations Bob Whelton to Retire, Scott Ward Named Vice President, Analog Business Unit
San Jose, Calif., Nov. 9, 2007 - Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today announced that Bob Whelton, Executive Vice President, Operations, will retire effective Dec. 1, 2007. Whelton, a 43-year veteran of the semiconductor industry, has been with Micrel since 1998. Micrel also announced the appointment of Scott Ward...
Read More »Micrel Named to Forbes 200 Best Small Companies
o Company Ranked 149th Overall o Ranked 4th In Five Year EPS Growth San Jose, Calif., Nov. 8, 2007 - Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today announced that the Company has been named one of Forbes magazines' top 200 Best Small Companies for 2007. The magazine issues an annual report (Oct. 29th, 2007 edition) that...
Read More »Synchronous Buck Regulator promotes battery efficiency.
Contained in 3 x 3 mm MLFÃ-® package, MIC2238 2.5 MHz dual 800 mA synchronous buck step-down regulator features Trickle Mode(TM) enabling light load efficiency for Li-Ion battery powered systems. Device offers input voltage range from 2.5-5.5 V and ultra-low quiescent current of 28 Ã-µA at light loads. Operation modes include Variable frequency Trickle Mode(TM) operation for highest light...
Read More »Receiver IC suits radio frequency applications.
With operating frequency from 300-350 MHz, 3.3 V QwikRadioÃ-® MICRF213 offers designers low current consumption of 3.9 mA at 315 MHz. It features up to -110 dBm sensitivity and functions as super-heterodyne receiver for OOK and ASK modulation up to 7.2 kbps at 315 MHz. Down-conversion mixer provides image rejection to optimize communication distance. Four filter bandwidths may be selected...
Read More »Transceiver targets BPON/GPON/GEPON/EPON applications.
Single-chip programmable SERDES, Model SY87725L, supports multiple Passive Optical Network standards and rates including asymmetric Gigabit Passive Optical Network with data rates up to 2.5 Gbps on receive side and 1.25 Gbps on transmit side. It offers complete clock recovery and data retiming circuitry, along with integrated 4-bit serial-to-parallel data converter on receive side. On transmit...
Read More »Post Amplifier is designed for fiber optic transceivers.
Model SY88973BL low-power limiting post amplifier offers multi-rate capability from 622 Mbps up to 3.2 Gbps operation. It incorporates low loss-of-signal, open-collector TTL output with external 4.75-10k micron pull-up resistor, and also features internal 50 micron data input and low-noise 50 micron CML data output. Available in 3 x 3 mm 16-pin MLFÃ-® package, device operates from single +3.3...
Read More »Switching Regulator IC suits low-noise applications.
Housed in 4 x 6 mm MLFÃ-® package, 3 A SuperLNR MIC38300 Low Noise Regulator produces less than 5 mW of output noise and 70 dB of PSRR. Ultra-fast dynamic performance allows unit to maintain less than 30 mV of output voltage deviation even during fast load transients. Target markets include point-of-load and digital IC power regulators for networking, servers, wireless base stations,...
Read More »