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Datasheet Microchip MIC2285A

ManufacturerMicrochip
SeriesMIC2285A

The MIC2285A is a high efficiency 8MHz PWM synchronous buck (step-down) regulator that features a LowQ® LDO standby mode that draws only 18µA of quiescent current

Datasheets

  • Download » Datasheet PDF, 559 Kb, Revision: 11-05-2015
    MIC2285A - 8MHz PWM Synchronous Buck Regulator with LDO Standby Mode
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    MIC2285A
    8MHz PWM Synchronous Buck Regulator
    with LDO Standby Mode General Description Features The Micrel MIC2285A is a high efficiency 8MHz
    PWM synchronous buck (step-down) regulator that
    features a LOWQВ® LDO standby mode that draws
    only 20ВµA of quiescent current. The MIC2285A
    allows an ultra-low noise, small size, and high
    efficiency solution for portable power applications.
    In PWM mode, the MIC2285A operates with a
    constant frequency 8MHz PWM control. Under light
    load conditions, such as in system sleep or standby
    modes, the PWM switching operation can be
    disabled to reduce switching losses. In this light load
    LOWQВ® mode, the LDO maintains the output voltage
    and draws only 18ВµA of quiescent current. The LDO
    mode of operation saves battery life while not
    introducing spurious noise and high ripple as
    experienced with pulse skipping or bursting mode
    regulators.
    The MIC2285A operates from 2.7V to 5.5V input and
    features internal power MOSFETs that can supply
    up to 600mA output current in PWM mode. It can
    operate with a maximum duty cycle of 100% for use ...

Prices

Status

MIC2285AYMT-TR
Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)

Packaging

MIC2285AYMT-TR
PackageUDFN
Pins10

Parametrics

MIC2285AYMT-TR
# of Outputs1
Automotive RatedNo
Duty Cycle Max, %1
Input Voltage Range, V2.7 - 5.5
Light Load Efficiency ModeNo
Operating Temperature Range, °C-40 to 125
Output Current, mA) Max600
Output Voltage Range, V1 - 5.5
Quiescent Current, mA) type0.79
Regulator TypeStep Down (Buck)
SHUTDOWN Current, µA0.01
Switching Frequency, kHz8000
Synchronous RectifierYes
Vfb, V1

Eco Plan

MIC2285AYMT-TR
RoHSCompliant

Moldel Line

Series: MIC2285A (1)

Manufacturer's Classification

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

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