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Datasheet Microchip MIC2245YML-TR

ManufacturerMicrochip
SeriesMIC2245
Part NumberMIC2245YML-TR

The MIC2245 is a high efficiency 4MHz pulse width modulated (PWM) synchronous buck (stepdown) regulator that features a LowQ® LDO standby mode that draws only 18µA of quiescent current

Datasheets

  • Download » Datasheet PDF, 572 Kb, Revision: 11-05-2015
    MIC2245 - 4MHz PWM Synchronous Buck Regulator with LDO Standby Mode
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    MIC2245
    4MHz PWM Synchronous Buck
    Regulator with LDO Standby Mode General Description Features The Micrel MIC2245 is a high efficiency 4MHz pulse
    width modulated (PWM) synchronous buck (stepdown) regulator that features a LOWQ™ LDO
    standby mode that draws only 18µA of quiescent
    current. The MIC2245 allows an ultra-low noise,
    small size, and high efficiency solution for portable
    power applications.
    In PWM mode, the MIC2245 operates with a
    constant frequency 4MHz 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 LOWQ™ mode, the LDO maintains the output
    voltage and draws only 18µA 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 MIC2245 operates from a 2.7V to 5.5V input
    voltage and features internal power MOSFETs that
    can supply up to 500mA output current in PWM
    mode. It can operate with a maximum duty cycle of ...

Prices

Status

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

Packaging

PackageVDFN
Pins10

Parametrics

# of Outputs1
Automotive RatedNo
Duty Cycle Max1 %
Input Voltage Range2.7 - 5.5 V
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Current500 mA) Max
Output Voltage Range1 - 5.5 V
Quiescent Current0.71 mA) type
Regulator TypeStep Down (Buck)
SHUTDOWN Current0.01 µA
Switching Frequency4000 kHz
Synchronous RectifierYes
Vfb1 V

Eco Plan

RoHSCompliant

Moldel Line

Series: MIC2245 (1)
  • MIC2245YML-TR

Manufacturer's Classification

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

Other Names:

MIC2245YMLTR, MIC2245YML TR

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