MIC23155

The MIC23155 is a high efficiency 3MHz 2A synchronous buck regulator with HyperLight Load® mode, Power Good output indicator, and programmable soft start. HyperLight Load® provides very high efficiency at light loads and ultra fast transient response which makes the MIC23155 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 2.5mm x 2.5mm Thin MLF® package saves precious board space and requires only four external components.

The MIC23155 is designed for use with a very small inductor, down to 0.47µH, and an output capacitor as small as 2.2µF that enables a total solution size, less than 1mm in height.

The MIC23155 has a very low quiescent current of 22µA and achieves a peak efficiency of 94% in continuous conduction mode. In discontinuous conduction mode, the MIC23155 can achieve 85% efficiency at 1mA.

The MIC23155 is available in a 10-pin 2.5mm x 2.5mm Thin MLF® package with an operating junction temperature range from -40°C to +125°C.

产品特性
  • Input voltage: 2.7V to 5.5V
  • Output voltage: fixed or adjustable (down to 0.7V)
  • Up to 2A output current
  • Up to 94% peak efficiency
  • 85% typical efficiency at 1mA
  • Power Good output
  • Programmable soft-start
  • 22µA typical quiescent current
  • 3MHz PWM operation in continuous conduction mode
  • Ultra fast transient response
  • Active output discharge when disabled
  • Low output voltage ripple
  • Fully integrated MOSFET switches
  • 0.01µA shutdown current
  • Thermal shutdown and current limit protection
  • 10-pin 2.5mm x 2.5mm Thin MLF®
  • -40°C to +125°C junction temperature range
技术参数
aspxParamName aspxParamValue aspxParamValue
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
Output Current (A) max 2 2
Quiescent Current (mA) typ 0.022 0.022
Switching Frequency (kHz) 3000 3000
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
文档资料
MIC23155 - 3MHz PWM 2A Buck Regulator with HyperLight Load® and Power GoodData Sheets11/05/2015969KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC23155-GYMT-TR10UDFN-40C to +125CT/R**********
MIC23155YMT-TR10UDFN-40C to +125CT/R**********
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC23155YMT-TR0.09145810UDFN2.5x2.5x0.6mmNiPdAue4
MIC23155-GYMT-TR0.09145810UDFN2.5x2.5x0.6mmNiPdAue4
MIC23155 - 3MHz PWM 2A Buck Regulator with HyperLight Load® and Power Good MIC23155