MIC2875

The MIC2875 is a compact and highly-efficient 2MHz synchronous boost regulator with a 4.8A switch. It features a bi-directional load disconnect function which prevents any leakage current between the input and output when the device is disabled. The MIC2875 operates in bypass mode automatically when the input voltage is greater than the target output voltage. At light loads, the boost converter goes to the PFM mode to improve the efficiency.

To minimize switching artifacts in the audio band, the MIC2875 is designed to operate with a minimum switching frequency of 45kHz. The MIC2875 also features an integrated anti-ringing switch to minimize EMI.

The MIC2875 is available in a 8-pin 2mm — 2mm Thin DFN (TDFN) package, with a junction temperature range of -40°C to +125°C.

Features
  • Input voltage range: 2.5V to 5.5V
  • Fully integrated, high-efficiency, 2MHz synchronous boost regulator
  • Bi-directional true load disconnect
  • Integrated anti-ringing switch
  • Minimum switching frequency of 45kHz
  • Up to 95% efficiency
  • <1µA shutdown current
  • Bypass mode for VIN - VOUT
  • Overcurrent protection and thermal shutdown
  • Fixed and adjustable output versions
  • 8-pin 2mm — 2mm TDFN package
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) 5.5 5.5
Output Voltage Range Min (V) 3.2 3.2
Output Voltage Range Max (V) 5.5 5.5
Quiescent Current (mA) typ 1 1
Switching Frequency (kHz) 2000 2000
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 0.9 0.9
Duty Cycle Max (%) 92 92
SHUTDOWN Current (µA) (Typ) 1 1
Light Load Efficiency Mode Yes Yes
Switch current (A) typ 4.8 4.8
Documents
MIC2875 - 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Discon.Data Sheets05/11/20161507KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC2875-4.75YMT-TR8UDFN-40C to +125CT/R**********
MIC2875-5.0YMT-TR8UDFN-40C to +125CT/R0.750.620.560.550.54
MIC2875-5.25YMT-TR8UDFN-40C to +125CT/R**********
MIC2875-5.5YMT-TR8UDFN-40C to +125CT/R**********
MIC2875-AYMT-TR8UDFN-40C to +125CT/R0.750.620.560.550.54
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC2875-4.75YMT-T50.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-AYMT-TR0.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-5.0YMT-TR0.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-5.5YMT-TR0.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-5.25YMT-T50.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-4.75YMT-TR0.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-5.25YMT-TR0.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-AYMT-T50.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-5.5YMT-T50.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875-5.0YMT-T50.0059000.5499008UDFN2x2x0.6mmMatte Tine3
MIC2875 - 4.8A ISW, Synchronous Boost Regulator with Bi-Directional Load Discon. MIC2875