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MIC2250YML Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC2250YML Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 13 page MIC2250 High-Efficiency Low EMI Boost Regulator MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( 408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com General Description The MIC2250 is a general purpose DC/DC boost switching regulator that features low noise, EMI reduction circuitry, and high efficiency across a wide output current range. The MIC2250 is optimized for noise-sensitive hand held battery powered applications. A proprietary control method allows low ripple across the output voltage and current ranges. The MIC2250 incorporates a pseudo-random dithering function to reduce EMI levels up to 10dB enabled by the DITH pin. The MIC2250 is designed for use with inductor values from 4.7µH to 22µH, and is stable with ceramic capacitors from 1µF to 22µF. The MIC2250 attains a high peak efficiency up to 90% at 100mA and excellent light load efficiency of 80% at 1mA. High power density is achieved with the MIC2250’s internal 34V/2A rated switch, allowing it to power large loads in a tiny footprint. The MIC2250 is available in a 8-pin 2mm x 2mm MLF ® leadless package option with an operating junction temperature range of –40°C to +125°C. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Features • Over 80% efficient for a 300:1 load range • 2.5V to 5.5V input voltage range • Output voltage adjustable to 32V • 2A switch current • 52µA (typ) quiescent current • Constant peak current control reduces output ripple • EMI reduction circuitry • Stable with small ceramic capacitors • <1µA shutdown current • UVLO and thermal shutdown • 8-pin 2mm x 2mm leadless MLF® package • –40°C to +125°C junction temperature range Applications • LCD/OLED display bias supply • CCD bias supply • Mobile Phones, PDA, Media Players, GPS PND • Haptic displays • Local 5V, 15V, 24V rail ___________________________________________________________________________________________________________ Typical Application May 2010 M9999-051310-A |
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