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MIC2295BML Datasheet(PDF) 1 Page - Micrel Semiconductor |
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MIC2295BML Datasheet(HTML) 1 Page - Micrel Semiconductor |
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1 / 9 page  July 2004 M9999-72104 hbwhelp@micrel.com or (408) 955-1690 MLF is a trademark of Amkor Technology. MIC2295 High Power Density 1.2A Boost Regulator General Description The MIC2295 is a 1.2Mhz, PWM dc/dc boost switching regulator available in low profile Thin SOT23 and 2mm x 2mm MLF package options. High power density is achieved with the MIC2295’s internal 34V / 1.2A switch, allowing it to power large loads in a tiny footprint. The MIC2295 implements constant frequency 1.2MHz PWM current mode control. The MIC2295 offers internal compensation that offers excellent transient response and output regulation performance. The high frequency operation saves board space by allowing small, low-profile external components. The fixed frequency PWM scheme also reduces spurious switching noise and ripple to the input power source. The MIC2295 is available in a low-profile Thin SOT23 5-lead package and a 2mm x2mm 8-lead MLF leadless package. The 2mm x 2mm MLF package option has an output over-voltage protection feature. The MIC2295 has an operating junction temperature range of –40°C to +125°C. Features • 2.5V to 10V input voltage range • Output voltage adjustable to 34V • 1.2A switch current • 1.2MHz PWM operation • Stable with small size ceramic capacitors • High efficiency • Low input and output ripple • <1mA shutdown current • UVLO • Output over-voltage protection (MIC2295BML) • Over temperature shutdown • Thin SOT23-5 package option • 2mm x 2mm leadless 8-lead MLF package option • –40 oC to +125oC junction temperature range Applications • Organic EL power supplies • 3.3V to 5V/500mA conversion • TFT-LCD bias supplies • Flash LED drivers • Positive and negative output regulators • SEPIC converters • Positive to negative Cuk converters • 12V supply for DSL applications • Multi-output dc/dc converters VIN EN SW FB AGND MIC2295 BML V IN 1-Cell Li Ion 3V to 4.2V V OUT 15V / 200mA 10µH 2.2µF 2mm x 2mm Boost Regulator R1 100K R2 9.01K 1µF OVP PGND 10 µH R2 9.01K R1 100k MIC2295 VIN 1-Cell Li Ion 3V to 4.2V VOUT 15V 100mA EN FB AGND VIN C1 2.2 µF 2.2 µF PGND SW OVP |
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Similar Description - MIC2295BML |
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