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MIC2295

Micrel Semiconductor
Part Number MIC2295
Manufacturer Micrel Semiconductor
Description High Power Density 1.2A Boost Regulator
Published Mar 26, 2005
Detailed Description MIC2295 High Power Density 1.2A Boost Regulator General Description The MIC2295 is a 1.2Mhz, PWM dc/dc boost switching ...
Datasheet PDF File MIC2295 PDF File

MIC2295
MIC2295

Overview
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 –40oC 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 10µH VOUT 15V/100mA L1 10µH VOUT 5V/500mA VIN 1-Cell Li Ion 3V to 4.
2V MIC2295BML SW OVP FB EN VIN C1 2.
2µF AGND PGND R2 9.
01K MIC2295 BD5 R1 100k 2.
2µF VIN VIN 1-Cell Li Ion EN C1 2.
2µF SW FB R1 10k 10µF R2 3.
3k GND MLF and MicroLeadFrame is a trademark of Amkor...


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