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Datasheet Microchip MIC28510


The MIC28510 is an adjustable frequency, synchronous buck regulator featuring unique adaptive on-time control architecture


  • Download » Datasheet PDF, 1.2 Mb, Revision: 11-05-2015
    MIC28510 - 75V/4A Hyper Speed Control? Synchronous DC/DC Buck Regulator
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    75V/4A Hyper Speed Controlпѓ¤
    Synchronous DC/DC Buck Regulator
    SuperSwitcher II General Description Features The Micrel MIC28510 is an adjustable–frequency,
    synchronous buck regulator featuring unique adaptive on–
    time control architecture. The MIC28510 operates over an
    input supply range of 4.5V to 75V and provides a regulated
    output of up to 4A of output current. The output voltage is
    adjustable down to 0.8V with a guaranteed accuracy of В±1%. п‚ Micrel’s Hyper Speed Controlпѓ¤ architecture allows for ultra–
    fast transient response while reducing the output capacitance
    and also makes (High VIN) / (Low VOUT) operation possible.
    This adaptive tON ripple control architecture combines the
    advantages of fixed–frequency operation and fast transient
    response in a single device.
    The MIC28510 offers a full suite of protection features to
    ensure protection of the IC during fault conditions. These
    include undervoltage lockout to ensure proper operation
    under power–sag conditions, internal soft–start to reduce
    inrush current, foldback current limit, “hiccup” mode shortcircuit protection, and thermal shutdown.
    All support documentation can be found on Micrel’s web
    site at: п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ п‚ Hyper Speed Controlпѓ¤ architecture enables:
    пЂ­ High Delta V operation (VIN = 75V and VOUT = 0.8V)
    пЂ­ Small output capacitance ...



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




# of Outputs11
Automotive RatedNoNo
Duty Cycle Max, %0.80.8
Input Voltage Range, V4.5 - 754.5 - 75
Light Load Efficiency ModeNoNo
Operating Temperature Range, °C-40 to +125-40 to +125
Output Current, mA) Max40004000
Output Voltage Range, V0.8 - 5.50.8 - 5.5
Quiescent Current, mA) type1.41.4
Regulator TypeStep Down (Buck)Step Down (Buck)
SHUTDOWN Current, µA700700
Synchronous RectifierYesYes
Vfb, V0.80.8

Eco Plan


Moldel Line

Series: MIC28510 (2)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 75V

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