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Datasheet Microchip MIC26901YJL-TR

Part NumberMIC26901YJL-TR

The MIC26901 is a constant-frequency, synchronous buck regulator featuring a unique adaptive on-time control architecture


  • Download » Datasheet PDF, 1.1 Mb, Revision: 11-05-2015
    MIC26901 - 28V, 9A Hyper Speed Control? Synchronous DC/DC Buck Regulator
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    28V, 9A Hyper Speed Controlв„ў
    Synchronous DC/DC Buck Regulator
    SuperSwitcher IIв„ў General Description Features The Micrel MIC26901 is a constant-frequency, synchronous
    buck regulator featuring a unique adaptive on-time control
    architecture. The MIC26901 operates over an input supply
    range of 4.5V to 28V and provides a regulated output of up to
    9A of output current. The output voltage is adjustable down to
    0.8V with a guaranteed accuracy of В±1%, and the device
    operates at a switching frequency of 600kHz. Micrel’s Hyper Speed Control™ architecture allows for ultrafast 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 MIC26901 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. An open-drain
    Power Good (PG) pin is provided.
    All support documentation can be found on Micrel’s web
    site at: Hyper Speed Controlв„ў architecture enables
    -High Delta V operation (VIN = 28V and VOUT = 0.8V) ...



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




# of Outputs1
Automotive RatedNo
Duty Cycle Max0.82 %
Input Voltage Range4.5 - 28 V
Light Load Efficiency ModeNo
Operating Temperature Range-40 to +125 °C
Output Current9000 mA) Max
Output Voltage Range0.8 - 5.5 V
Quiescent Current0.45 mA) type
Regulator TypeStep Down (Buck)
SHUTDOWN Current5 µA
Switching Frequency600 kHz
Synchronous RectifierYes
Vfb0.8 V

Eco Plan


Moldel Line

Series: MIC26901 (1)
  • MIC26901YJL-TR

Manufacturer's Classification

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

Other Names:


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