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Datasheet Microchip MIC2238

ManufacturerMicrochip
SeriesMIC2238

The MIC2238 is dual output 2-phase synchronous buck (step down) PWM DC/DC switching regulator

Datasheets

  • Download » Datasheet, PDF, 1.1 Mb, Revision: 09-11-2017
    MIC2238 Data Sheet
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    MIC2238
    2.5MHz Dual Phase
    PWM Buck Regulator General Description Features The Micrel MIC2238 is dual output 2-phase synchronous
    buck (step down) PWM DC/DC switching regulator. Power
    conversion efficiencies of above 95% are easily obtainable
    for a wide range of applications and loads. An ultra-low
    quiescent current of 28µA at light loads assures minimum
    current draw in battery powered applications that require
    standby modes. The 2.5MHz PWM operation of MIC2238
    allows the use of miniature 1µH, 2.2µH or 4.7µH inductor
    with the use of 2.2µF ceramic output capacitor.
    The MIC2238 operates from 2.5V to 5.5V input and is
    available in fixed output voltage versions to save space
    and reduce external component count. The MIC2238-AA’s
    (adjustable version) output voltage versions can be
    programmed as low as 0.8V
    For applications that require the lowest noise performance,
    the /FPWM pin allows the automatic Trickle mode to be
    disabled, remaining in full PWM mode. To maximize
    battery life in low-dropout conditions, MIC2238 can
    operate with a maximum duty cycle of 100%.
    The MIC2238 is available in a space-saving 3mm x 3mm
    MLF®-12L package with a junction temperature range from ...

Prices

Status

MIC2238-AAYML-TRMIC2238-G4YML-TRMIC2238-GFHYML-TRMIC2238-GSYML-TRMIC2238-J4YML-TRMIC2238-S4YML-TRMIC2238-SSYML-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)

Packaging

Parametrics

MIC2238-AAYML-TRMIC2238-G4YML-TRMIC2238-GFHYML-TRMIC2238-GSYML-TRMIC2238-J4YML-TRMIC2238-S4YML-TRMIC2238-SSYML-TR
# of Outputs2222222
Automotive RatedNoNoNoNoNoNoNo
Duty Cycle Max, %1111111
Input Voltage Range, V2.5 - 5.52.5 - 5.52.5 - 5.52.5 - 5.52.5 - 5.52.5 - 5.52.5 - 5.5
Light Load Efficiency ModeNoNoNoNoNoNoNo
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
Output Current, mA) Max2000200020002000200020002000
Output Voltage Range, V0.8 - 5.50.8 - 5.50.8 - 5.50.8 - 5.50.8 - 5.50.8 - 5.50.8 - 5.5
Regulator TypeStep Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)
SHUTDOWN Current, µA1111111
Switching Frequency, kHz2500250025002500250025002500
Synchronous RectifierYesYesYesYesYesYesYes
Vfb, V0.80.80.80.80.80.80.8

Eco Plan

Moldel Line

Series: MIC2238 (7)

Manufacturer's Classification

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

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