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Datasheet Microchip MIC2251-1YD5-TR

ManufacturerMicrochip
SeriesMIC2251
Part NumberMIC2251-1YD5-TR

The MIC2251 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

Datasheets

  • Download » Datasheet PDF, 890 Kb, Revision: 11-05-2015
    MIC2251 - High-Efficiency Low EMI Boost Regulator
    Docket ↓
    MIC2251
    High-Efficiency Low EMI
    Boost Regulator General Description Features The MIC2251 is a general purpose DC/DC boost switching Over 80% efficient for a 300:1 load range
    regulator that features low noise, EMI reduction circuitry, 2.5V to 5.5V input voltage range
    and high efficiency across a wide output current range. Output voltage adjustable to 37V
    The MIC2251 is optimized for noise-sensitive hand held 52ВµA (typ) quiescent current
    battery powered applications. A proprietary control method Constant peak current control reduces output ripple
    allows low ripple across the output voltage and current
    ranges. The MIC2251 incorporates a pseudo-random EMI reduction circuitry
    dithering function to reduce EMI levels up to 10dB enabled Stable with small ceramic capacitors
    by the DITH pin. <1ВµA shutdown current
    The MIC2251 is designed for use with inductor values from UVLO and thermal shutdown
    4.7ВµH to 22ВµH, and is stable with ceramic capacitors from
    1ВµF to 22ВµF. 8-pin 2mm x 2mm leadless MLFВ® package (MIC2251)
    The MIC2251 attains a high peak efficiency up to 90% at 5-pin Thin SOT-23 package (MIC2251-1 & -2)
    100mA and excellent light load efficiency of 80% at 1mA. –40°C to +125°C junction temperature range
    High power density is achieved with the MIC2251’s
    internal 40V/2A rated switch, allowing it to power large
    loads in a tiny footprint.
    Applications
    The MIC2251-1 is available in a 5-pin Thin SOT-23 LCD/OLED display bias supply
    package with dithering disabled. While the MIC2251-2 is CCD bias supply
    available in a 5-pin Thin SOT-23 package with dithering Mobile Phones, PDA, Media Players, GPS PND ...

Prices

Status

Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)

Packaging

PackageTSOT
Pins5

Parametrics

Automotive QualNo
Duty Cycle Max87 %
Input Voltage Range Max5.5 V
Input Voltage Range Min(V)2.5
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Voltage Range Max37 V
Output Voltage Range Min3 V
Quiescent Current0.07 mA) typ
SHUTDOWN Current0.1 µA
Switch current2 A) typ
Synchronous RectifierNo
Vfb1.24 V

Eco Plan

RoHSCompliant

Moldel Line

Series: MIC2251 (3)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Up (Boost) - Non-Synchronous Products

Other Names:

MIC22511YD5TR, MIC2251 1YD5 TR

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