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Datasheet Microchip MIC24056


The MIC24056 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture


  • Download » Datasheet, PDF, 1.7 Mb, Revision: 11-09-2015
    MIC24056 - 12V, 12A High-Efficiency Buck Regulator
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    12V, 12A High-Efficiency Buck Regulator
    SuperSwitcher II General Description Features HyperLight Load efficiency – up to 80% at 10mA
    The Micrel MIC24056 is a constant-frequency,
    synchronous DC/DC buck regulator featuring adaptive on Hyper Speed Control architecture enables
    time control architecture. The MIC24056 operates over a
    -High delta V operation (VIN = 19V and VOUT = 0.8V)
    supply range of 4.5V to 19V. It has an internal linear
    -Small output capacitance
    regulator which provides a regulated 5V to power the Input voltage range: 4.5V to 19V
    internal control circuitry. MIC24056 operates at a constant
    600kHz switching frequency in continuous-conduction Output current up to 12A
    mode and can be used to provide up to 12A of output Up to 95% efficiency
    current. The output voltage is adjustable down to 0.8V. Adjustable output voltage from 0.8V to 5.5V
    Micrel’s HyperLight Load architecture provides the same ±1% FB accuracy
    high efficiency and ultra-fast transient response as the Any Capacitor™ stable -zero-to-high ESR
    Hyper Speed Control architecture under medium to 600kHz switching frequency
    heavy loads, but also maintains high efficiency under light
    load conditions by transitioning to variable frequency, Power good (PG) output
    discontinuous mode operation. Foldback current-limit and “hiccup” mode short-circuit
    The MIC24056 offers a full suite of protection features to
    protection ...



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




# of Outputs1
Automotive RatedNo
Duty Cycle Max, %0.82
Input Voltage Range, V4.5 - 19
Light Load Efficiency ModeYes
Operating Temperature Range, °C-40 to +125
Output Current, mA) Max12000
Output Voltage Range, V0.8 - 5.5
Quiescent Current, mA) type0.45
Regulator TypeStep Down (Buck)
SHUTDOWN Current, µA5
Switching Frequency, kHz600
Synchronous RectifierYes
Vfb, V0.8

Eco Plan


Moldel Line

Series: MIC24056 (1)

Manufacturer's Classification

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

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