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Datasheet Microchip MIC24054


The MIC24054 is a constant-frequency, synchronous DC/DC buck regulator featuring adaptive on-time control architecture


  • Download » Datasheet PDF, 1.3 Mb, Revision: 11-09-2015
    MIC24054 - 12V, 9A High-Efficiency Buck Regulator
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    12V, 9A High-Efficiency Buck Regulator
    SuperSwitcher II General Description Features Hyper Light Load efficiency – up to 80% at 10mA
    The Micrel MIC24054 is a constant-frequency,
    synchronous DC/DC buck regulator featuring adaptive on Hyper Speed Control architecture enables
    time control architecture. The MIC24054 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. The MIC24054 operates at a
    constant 600kHz switching frequency in continuous Output current up to 9A
    conduction mode and can be used to provide up to 9A of Up to 95% efficiency
    output current. The output voltage is adjustable down to Adjustable output voltage from 0.8V to 5.5V
    0.8V. В±1% FB accuracy
    Micrel’s Hyper Light Load architecture provides the same Any Capacitor stable -zero-to-high ESR
    high-efficiency and ultra-fast transient response as the 600kHz switching frequency
    Hyper Speed ControlпЈЄ architecture under medium to heavy
    loads, but also maintains high efficiency under light load Power good (PG) output
    conditions by transitioning to variable frequency, Foldback current-limit and “hiccup” mode short-circuit
    discontinuous mode operation.
    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) Max9000
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: MIC24054 (1)

Manufacturer's Classification

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

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