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Datasheet Microchip MIC2177

ManufacturerMicrochip
SeriesMIC2177

The MIC2177 is a 200kHz synchronous buck (step-down) switching regulator designed for high-efficiency, battery-powered applications

Datasheets

  • Download » Datasheet, PDF, 224 Kb, Revision: 11-05-2015
    MIC2177 - 2.5A Synchronous Buck Regulator
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    MIC2177
    2.5A Synchronous Buck Regulator General Description Features The Micrel MIC2177 is a 200kHz synchronous buck (stepdown) switching regulator designed for high-efficiency,
    battery-powered applications.
    The MIC2177 operates from a 4.5V to 16.5V input and
    features internal power MOSFETs that can supply up to 2.5A
    output current. It can operate with a maximum duty cycle of
    100% for use in low-dropout conditions. It also features a
    shutdown mode that reduces quiescent current to less than
    5ВµA.
    The MIC2177 achieves high efficiency over a wide output
    current range by switching between PWM and skip mode.
    Operating mode is automatically selected according to output
    conditions. Switching frequency is preset to 200kHz and can
    be synchronized to an external clock signal of up to 300kHz.
    The MIC2177 uses current-mode control with internal current
    sensing. Current-mode control provides superior line
    regulation and makes the regulator control loop easy to
    compensate. The output is protected with pulse-by-pulse
    current limiting and thermal shutdown. Undervoltage lockout
    turns the output off when the input voltage is less than 4.5V.
    The MIC2177 is packaged in a 20-pin wide power SO
    package with an operating temperature range of –40°C to
    +85В°C. ...

Prices

Status

MIC2177-3.3YWMMIC2177-3.3YWM-TRMIC2177-5.0YWMMIC2177-5.0YWM-TRMIC2177YWMMIC2177YWM-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)

Packaging

Parametrics

MIC2177-3.3YWMMIC2177-3.3YWM-TRMIC2177-5.0YWMMIC2177-5.0YWM-TRMIC2177YWMMIC2177YWM-TR
# of Outputs111111
Automotive RatedNoNoNoNoNoNo
Duty Cycle Max, %111111
Input Voltage Range, V4.5 - 16.54.5 - 16.54.5 - 16.54.5 - 16.54.5 - 16.54.5 - 16.5
Light Load Efficiency ModeYesYesYesYesYesYes
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85
Output Current, mA) Max250025002500250025002500
Output Voltage Range, V1.245 - 16.51.245 - 16.51.245 - 16.51.245 - 16.51.245 - 16.51.245 - 16.5
Quiescent Current, mA) type0.50.50.50.50.50.5
Regulator TypeStep Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)Step Down (Buck)
SHUTDOWN Current, µA111111
Switching Frequency, kHz200200200200200200
Synchronous RectifierYesYesYesYesYesYes
Vfb, V1.2451.2451.2451.2451.2451.245

Eco Plan

MIC2177-3.3YWMMIC2177-3.3YWM-TRMIC2177-5.0YWMMIC2177-5.0YWM-TRMIC2177YWMMIC2177YWM-TR
RoHSCompliantCompliantCompliantCompliantCompliantCompliant

Moldel Line

Series: MIC2177 (6)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 36V

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