MIC2253

The MIC2253 is a high power density 1MHz PWM DC/DC boost regulator. The 3.5A minimum switch current limit combined with a 1MHz switching frequency allows the MIC2253 to use smaller inductors and deliver high power in a tiny solution size.

The 2.5V to 10V input voltage range of MIC2253 allows direct operation from 1- and 2-cell Li-Ion as well as 3- to 4-cell NiCad, NiMH, Alkaline, or lithium batteries. Maximum battery life is assured with a low 0.1µA shutdown current.

The MIC2253 is available in a low profile 12-pin 3mm x 3mm MLF® package. To prevent a high inrush current, a minimum 1ms soft-start period is set by default and the MIC2253 has the ability to extend the soft-start period with an external capacitor.

Features
  • 3.5A minimum switch current
  • 1.245V ±3% feedback voltage
  • 2.5V to 10V input voltage
  • Output over-voltage protection (OVP)
  • Externally programmable soft-start
  • Output voltage up to 30V (max)
  • Fixed 1MHz operation
  • <1% line regulation
  • 0.1µA shutdown current
  • Over temperature protection
  • Under-voltage lockout (UVLO)
  • 12-pin 3mm x 3mm leadless MLF® package
  • -40°C to +125°C junction temperature range
Parameter
Parameter Name Value Value
Regulator Type Step Up (Boost) Step Up (Boost)
Input Voltage Range Min (V) 2.5 2.5
Input Voltage Range Max (V) 10 10
Output Voltage Range Min (V) 3 3
Output Voltage Range Max (V) 30 30
Quiescent Current (mA) typ 15 15
Switching Frequency (kHz) 1000 1000
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 1.245 1.245
Duty Cycle Max (%) 90 90
SHUTDOWN Current (µA) (Typ) 0.1 0.1
Switch current (A) typ 3.5 3.5
Documents
MIC2253 - 3.5A 1MHz High Efficiency Boost Regulator with OVP and SoftstartData Sheets11/05/2015493KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC2253-06YML-TR12VDFN-40C to +125CT/R1.040.870.790.760.75
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC2253-06YML-TR0.64430212VDFN3x3x0.9mmNiPdAue4
MIC2253 - 3.5A 1MHz High Efficiency Boost Regulator with OVP and Softstart MIC2253