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Datasheet Microchip MIC4950

ManufacturerMicrochip
SeriesMIC4950

The MIC4950 is a high-efficiency, 5A synchronous buck regulator with ultra-fast transient response perfectly suited for supplying processor core and I/O voltages from a 5V or 3

Datasheets

  • Download » Datasheet, PDF, 1.2 Mb, Revision: 11-05-2015
    MIC4950 Data Sheet
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    MIC4950
    Hyper Speed Control™ 5A Buck Regulator General Description
    The MIC4950 is a high-efficiency, 5A synchronous buck
    regulator with ultra-fast transient response. It is perfectly
    suited for supplying processor core and I/O voltages from
    a 5V or 3.3V bus. The MIC4950 provides a switching
    frequency up to 3.3MHz while achieving peak efficiencies
    up to 95%. An additional benefit of high-frequency
    operation is very low output ripple voltage throughout the
    entire load range with the use of a small output capacitor.
    The MIC4950 is designed for use with a very small
    inductor, down to 1µH, and an output ceramic capacitor as
    small as 10µF, without the need for external ripple
    injection. A wide range of output capacitor types and
    values can also be accommodated.
    The MIC4950 supports safe start-up into a pre-biased
    output, and offers short-circuit and thermal shutdown
    protections.
    The MIC4950 is available in 8-Pin SOIC and 10-Pin 3mm
    × 4mm DFN packages with an operating junction
    temperature range from –40°C to +125°C.
    Datasheets and support documentation are available on
    Micrel’s web site at: www.micrel.com. Features ...

Prices

Status

MIC49500-0.9WRMIC49500-0.9WR-TRMIC49500-1.2WRMIC49500-1.2WR-TRMIC49500WRMIC49500WR-TRMIC4950YFL-T5MIC4950YFL-TRMIC4950YFM-T5MIC4950YFM-TR
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)

Packaging

Parametrics

MIC49500-0.9WRMIC49500-0.9WR-TRMIC49500-1.2WRMIC49500-1.2WR-TRMIC49500WRMIC49500WR-TRMIC4950YFL-T5MIC4950YFL-TRMIC4950YFM-T5MIC4950YFM-TR
# of Outputs1111111111
Automotive RatedNoNoNoNoNoNoNoNoNoNo
Input Voltage Range, V2.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.52.7 - 5.5
Light Load Efficiency ModeNoNoNoNoNoNoNoNoNoNo
Operating Temperature Range, °C-40 to 125-40 to 125-40 to 125-40 to 125-40 to 125-40 to 125-40 to 125-40 to +125-40 to 125-40 to +125
Output Current, mA) Max5000500050005000500050005000500050005000
Output Voltage Range, V0.70.70.70.70.70.70.70.70.70.7
Quiescent Current, mA) type0.80.80.80.80.80.80.80.80.80.8
Regulator TypeStep Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)
SHUTDOWN Current, µA0.010.010.010.010.010.010.010.010.010.01
Switching Frequency, kHz3300330033003300330033003300330033003300
Synchronous RectifierYesYesYesYesYesYesYesYesYesYes
Vfb, V0.6250.6250.6250.6250.6250.6250.6250.6250.6250.625

Eco Plan

MIC49500-0.9WRMIC49500-0.9WR-TRMIC49500-1.2WRMIC49500-1.2WR-TRMIC49500WRMIC49500WR-TRMIC4950YFL-T5MIC4950YFL-TRMIC4950YFM-T5MIC4950YFM-TR
RoHSCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliantCompliant

Moldel Line

Series: MIC4950 (10)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 6V

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