MIC23031

The MIC23031 is a high efficiency 4MHz 400mA synchronous buck regulator with HyperLight Load® mode. HyperLight Load® provides very high efficiency at light loads and ultra-fast transient response which is perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The tiny 1.6mm x 1.6mm Thin MLF® package saves precious board space and requires only three external components.

The MIC23031 is designed for use with a very small inductor, down to 0.47µH, and an output capacitor as small as 2.2 µF that enables a sub-1mm height.

The MIC23031 has a very low quiescent current of 21µA and achieves as high as 88% efficiency at 1mA. At higher loads, the MIC23031 provides a constant switching frequency around 4MHz while achieving peak efficiencies up to 93%.

The MIC23031 is available in a 6-pin 1.6mm x 1.6mm Thin MLF® package with an operating junction temperature range from -40°C to +125°C.

Features
  • Input voltage range: 2.7V to 5.5V
  • 400mA output current
  • Up to 93% efficiency and 88% at 1mA
  • 21µA typical quiescent current
  • 4MHz PWM operation in continuous mode
  • Ultra fast transient response
  • Low voltage output ripple
  • 20mVpp ripple in HyperLight Load® mode
  • 3mV output voltage ripple in full PWM mode
  • 0.01µA shutdown current
  • Fixed and adjustable output voltage options available
  • 6-pin 1.6mm x 1.6mm Thin MLF®
  • -40°C to +125°C junction temperature range
Parameter
Parameter Name Value Value
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 2.7 2.7
Input Voltage Range Max (V) 5.5 5.5
Output Voltage Range Min (V) 0.62 0.62
Quiescent Current (mA) typ 0.021 0.021
Switching Frequency (kHz) 4000 4000
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 0.62 0.62
Duty Cycle Max (%) 0.89 0.89
SHUTDOWN Current (µA) (Typ) 0.01 0.01
Light Load Efficiency Mode Yes Yes
Documents
MIC23031 - 4MHz PWM 400mA Buck Regulator with HyperLight Load?Data Sheets11/05/20151139KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC23031-4YMT-TR6UDFN-40C to +125CT/R0.760.630.580.560.55
MIC23031-AYMT-TR6UDFN-40C to +125CT/R0.760.630.580.560.55
MIC23031-CYMT-TR6UDFN-40C to +125CT/R0.760.630.580.560.55
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC23031-AYMT-TR0.0044000.5486006UDFN1.6x1.6x0.6mmNiPdAue4
MIC23031-FYMT-TR0.0044000.5486006UDFN1.6x1.6x0.6mmNiPdAue4
MIC23031-GYMT-TR0.0044000.5486006UDFN1.6x1.6x0.6mmNiPdAue4
MIC23031-4YMT-TR0.0044000.5486006UDFN1.6x1.6x0.6mmNiPdAue4
MIC23031-CYMT-TR0.0044000.5486006UDFN1.6x1.6x0.6mmNiPdAue4
MIC23031 - 4MHz PWM 400mA Buck Regulator with HyperLight Load? MIC23031
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