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Datasheet Microchip MIC23254


The MIC23254 is a low-input voltage, high-efficiency 4MHz dual 400mA synchronous buck regulator with HyperLight Load® mode


  • Download » Datasheet, PDF, 977 Kb, Revision: 11-09-2015
    MIC23254 - 4MHz Dual 400mA Synch Buck Reg w/ Low Input Voltage HyperLight Load?
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    4MHz Dual 400mA Synchronous Buck
    Regulator with Low Input Voltage and
    HyperLight Load™ General Description Features The MIC23254 is a low-input voltage, high-efficiency 4MHz Low input voltage range: 2.5V to 5.5V
    dual 400mA synchronous buck regulator with HyperLight Dual output current 400mA/400mA
    Load™ mode. HyperLight Load™ provides very-high Up to 94% peak efficiency and 85% efficiency at 1mA
    efficiency at light loads and ultra-fast transient response 33µA dual quiescent current
    which is perfectly suited for supplying processor core 1µH inductor with a 4.7µF capacitor
    voltages. An additional benefit of this proprietary 4MHz in PWM operation
    architecture is very-low output ripple voltage throughout
    the entire load range with the use of small output Ultra-fast transient response
    capacitors. MIC23254 operates from an input voltage Low voltage output ripple
    down to 2.5V for low battery states. The MIC23254 has a 20mVpp in HyperLight Load™ mode
    tiny 2mm x 2mm Thin MLF package that saves precious 3mV output voltage ripple in full PWM mode
    board space by requiring only 6 additional external 0.01µA shutdown current
    components to drive both outputs up to 400mA each. Fixed output:10-pin 2mm x 2mm Thin MLF®
    The device is designed for use with a 1µH inductor and a –40°C to +125°C junction temperature range
    4.7µF output capacitor that enables a sub-1mm height.
    The MIC23254 has a very-low quiescent current of 33µA
    with both outputs enabled and can achieve over 85%
    efficiency at 1mA. At higher loads the MIC23254 provides a Mobile handsets ...



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




# of Outputs2
Automotive RatedNo
Duty Cycle Max, %0.86
Input Voltage Range, V2.5 - 5.5
Light Load Efficiency ModeYes
Operating Temperature Range, °C-40 to +125
Output Current, mA) Max2000
Output Voltage Range, V1 - 1.8
Regulator TypeStep Down (Buck)
SHUTDOWN Current, µA0.01
Switching Frequency, kHz4000
Synchronous RectifierYes

Eco Plan


Moldel Line

Series: MIC23254 (1)

Manufacturer's Classification

  • Power Management > Switching Regulators > Step Down up to 6V

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