MIC4684

The MIC4684 is a high-efficiency 200kHz stepdown (buck) switching regulator. Power conversion efficiency of above 85% is easily obtainable for a wide variety of applications. The MIC4684 achieves 2A of continuous current in an 8-lead SO (small outline) package at 60°C ambient temperature.

High efficiency is maintained over a wide output current range by utilizing a boost capacitor to increase the voltage available to saturate the internal power switch. As a result of this high efficiency, no external heat sink is required. The MIC4684, housed in an SO-8, can replace larger TO-220 and TO-263 packages in many applications.

The MIC4684 allows for a high degree of safety. It has a wide input voltage range of 4V to 30V (34V transient), allowing it to be used in applications where input voltage transients may be present. Built-in safety features include over-current protection, frequency-foldback short-circuit protection, and thermal shutdown.

The MIC4684 is available in an 8-lead SO package with a junction temperature range of -40°C to +125°C.

产品特性
  • SO-8 package with 2A continuous output current
  • Over 85% efficiency
  • Fixed 200kHz PWM operation
  • Wide input voltage range: 4V to 30V
  • Output voltage adjustable to 1.235V
  • All surface mount solution
  • Internally compensated with fast transient response
  • Over-current protection
  • Frequency foldback short-circuit protection
  • Thermal shutdown
技术参数
aspxParamName aspxParamValue aspxParamValue
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 4 4
Input Voltage Range Max (V) 30 30
Output Voltage Range Min (V) 1.24 1.24
Output Current (A) max 2 2
Quiescent Current (mA) typ 6 6
Switching Frequency (kHz) 200 200
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 1.24 1.24
Duty Cycle Max (%) 0.94 0.94
SHUTDOWN Current (µA) (Typ) 5 5
文档资料
MIC4684 Data SheetData Sheets11/05/2015482KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC4684YM8SOIC-40C to +125CTUBE1.741.451.321.271.26
MIC4684YM-TR8SOIC-40C to +125CT/R1.741.451.321.271.26
相关开发工具
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC4684YM0.0000008SOIC3.9mmMatte Tine3
MIC4684YM-TR0.0000008SOIC3.9mmMatte Tine3
MIC4684 Data Sheet MIC4684