MIC22200

The Micrel MIC22200 is a high efficiency, 2A integrated switch synchronous buck (step-down) regulator. The MIC22200 switching frequency is programmable from 800kHz to 4MHz, allowing the customer to optimize their designs either for efficiency or for the smallest footprint. The regulator achieves efficiencies as high as 95% while still switching at 1MHz over a broad load range.

The ultra high speed control loops keep the output voltage within regulation even under the extreme transient load swings commonly found in FPGAs and low-voltage ASICs.

The output voltage can be adjusted down to 0.7V to address all low voltage power needs.

The MIC22200 offers a full range of sequencing and tracking options. The Enable/Delay pin, combined with the Power-On-Reset (POR) pin, allows multiple outputs to be sequenced in many ways during turn on and turn off. The Ramp Control™ (RC) pin allows the device to be connected to another device in the MIC22X00 family of products to keep the output voltages within a certain delta V on start up.

The MIC22200 is available in a 3mm x 3mm 12-pin MLF® package with a junction operating range from -40°C to +125°C.

产品特性
  • Input voltage range: 2.6V to 5.5V
  • Adjustable output voltage option down to 0.7V
  • Output current to 2A
  • Full sequencing and tracking capability
  • Easy RC compensation
  • Power On Reset (POR) output
  • Efficiency >90% across a broad load range
  • Operating frequency: Programmable from 800 kHz up to 4MHz
  • Ultra fast transient response
  • 100% maximum duty cycle
  • Fully integrated MOSFET switches
  • Micropower shutdown
  • Thermal shutdown and current limit protection
  • Available in Pb-free 3mm x 3mm 12-pin MLF® package
  • -40°C to +125°C junction temperature range
技术参数
Parameter Name Value Value
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 2.6 2.6
Input Voltage Range Max (V) 5.5 5.5
Output Voltage Range Min (V) 0.7 0.7
Output Voltage Range Max (V) 5.5 5.5
Output Current (A) max 2 2
Quiescent Current (mA) typ 1.2 1.2
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 0.7 0.7
Duty Cycle Max (%) 1 1
SHUTDOWN Current (µA) (Typ) 3.7 3.7
文档资料
MIC22200 - 2A Integrated Switch Synchronous Buck Reg with Freq ProgrammableData Sheets11/05/20151089KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC22200YML-TR12VDFN-40C to +125CT/R1.521.271.151.111.10
相关开发工具
器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC22200YML-TR0.64430212VDFN3x3x0.9mmNiPdAue4
MIC22200 - 2A Integrated Switch Synchronous Buck Reg with Freq Programmable MIC22200