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Posts Tagged ‘Micrel’

App note: Designing P.C. Board heat sinks

Sunday, November 1st, 2015

Application hint from Micrel on how to do baseline calculation on board area required as heatsink for SMD components. Link here (PDF) System designers increasingly face the restriction of using all surface-mounted components in their new designs; even including the power components. Through-hole components can dissipate excess heat with clip-on...

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App note: MIC2039 single input, stack configuration for high current applications

Sunday, September 14th, 2014

An app note (PDF) from MICREL on their MIC2039 stackable switches with programmable current limiter. Because processors are required to work faster with each successive generation and the consumer electronics market is expanding, the demand for compact power control circuits with high current capability is ever increasing. The MIC2039 switches...

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app note: High-Side Switch Using LDO Regulator Controller

Sunday, April 27th, 2014

An old but good app note from Micrel using LDO Regulator as High Side switch controller. The Micrel MIC5158 Super LDO™ Voltage Regulator Controller can be used as a high-side switch driver that features a relatively accurate current limit. The part is normally intended for driving the MOSFET pass device...

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app note: Simple Current-Limiting Power Supply

Sunday, April 27th, 2014

A simple current-limiting power supply from Micrel, app note here. Just three ICs are required to build this adjustable-voltage, adjustable-current-limit power supply that operates like a laboratory supply. It offers an output voltage range of 0V to 25V and a current limit range of about 10mA to 1.5A. The Micrel...

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App note: PCB design for 10/100 switches and PHY

Sunday, February 2nd, 2014

Design guide on PCB layout from Micrel on 10/100 switches and PHY This application note is intended to assist customers in designing products that comply with both EMI and ESD standards using Micrel’s 10/100 family of Ethernet products. The printed circuit board (PCB) is the single most important factor that...

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App note: Troubleshooting switching power supplies

Sunday, February 2nd, 2014

Having problem with your switching power supply design? Or just curious on common switching power supply failures. Here's a good resource from Micrel on troubleshooting power supplies. This application note provides insight on troubleshooting and taking measurements in switching power supplies. Specific measurements include output ripple, line and load regulation,...

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App note: Universal serial bus power management

Sunday, January 12th, 2014

See this app note from Micrel on USB power requirements and distribution. Power management and distribution is a major factor in correctly designing USB (Universal Serial Bus) peripherals. Proper methods of designing USB peripheral power distribu- tion are crucial to ensure full compliance with the USB specification, including compliance with...

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App note: Design considerations for 5V to 3.3V pass regulators

Sunday, January 12th, 2014

Great app note from Micrel on thermal management for voltage regulators. This note discusses the LDO option, including choosing between simple three terminal regulators and full-featured five terminal regulators, and provides formulas, calculations, and a selection of commercial heat sinks for powering 3.3V logic circuitry requiring up to 5 amps...

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MIC4811: High Current 6 Channel Linear WLED Driver with DAM™ and Ultra Fast PWM™ Control

Monday, June 6th, 2011

Micrel has announced the availability of the MIC4811 High Current 6 Channel Linear WLED Driver with DAM™ and Ultra Fast PWM™ Control. The MIC4811/MIC4812 are high efficiency linear White LED (WLED) drivers designed to drive up to six high current WLEDs for signage lighting. The MIC4811/MIC4812 provide the highest possible...

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Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please