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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. ±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 Control 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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