MIC2202

The Micrel MIC2202 is a high efficiency, 2MHz PWM synchronous buck regulator. The fast 2MHz operation along with a proprietary compensation scheme allows the smallest possible external components. The MIC2202 can operate with a 1µF ceramic output capacitor and a small, low DC-resistance, 2.2µH inductor, reducing system size and cost while allowing a high level of efficiency.

The MIC2202 operates from 2.3V to 5.5V input and features internal power MOSFETs that can supply over 600mA of output current with output voltages down to 0.5V. The MIC2202 implements a constant 2MHz pulse- width-modulation (PWM) control scheme which reduces noise in sensitive RF, audio, and communications applications. Additionally, the MIC2202 can be synchronized to an external clock, or multiple MIC2202s can easily be daisy-chained with the SYNCLOCK feature.

The MIC2202 has a high bandwidth loop (up to 500kHz) which allows ultra fast transient response times. This is very useful when powering applications that require fast dynamic response such as CPU cores and RF circuitry in high performance cellular phones and PDAs. The MIC2202 is available in 10-pin MSOP and 3mm 3mm MLF®-10L package options with an operating junction temperature range from -40°C to +125°C

Features
  • Input voltage range: 2.3V to 5.5V
  • Output down to 0.5V @ 600mA
  • 2MHz PWM operation
  • Stable with 1µF ceramic output capcitor.
  • Ultra-fast transient response (up to 500kHz GBW)
  • Internal compensation
  • All ceramic capacitors
  • >95% efficiency
  • Fully integrated MOSFET switches
  • Easily synchronized to external clock
  • SYNCLOCK feature to daisy chain multiple 2202s
  • Requires only 4 external components
  • 1% line and load regulation
  • Logic-controlled micropower shutdown
  • Thermal shutdown and current limit protection
  • 10-pin MSOP and 3mm x 3mm MLF®-10L package options
  • -40°C to +125°C junction temperature range
Parameter
Parameter Name Value Value
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 2.3 2.3
Input Voltage Range Max (V) 5.5 5.5
Output Voltage Range Min (V) 0.5 0.5
Output Voltage Range Max (V) 5.5 5.5
Quiescent Current (mA) typ 0.35 0.35
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 125 -40 to 125
Vfb (V) 0.5 0.5
Duty Cycle Max (%) 1 1
SHUTDOWN Current (µA) (Typ) 0.01 0.01
Documents
MIC2202 - High Efficiency 2MHz Synch Buck Converter 1µF Stable PWM RegulatorData Sheets11/05/2015565KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MIC2202YML10VDFN-40C to +125CTUBE1.631.361.241.191.18
MIC2202YML-TR10VDFN-40C to +125CT/R1.631.361.241.191.18
MIC2202YMM10MSOP-40C to +125CTUBE**********
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MIC2202YMM-TR0.0245000.43118010MSOP3x3x1.0mmNiPdAue4
MIC2202YMM0.0245000.13560010MSOP3x3x1.0mmNiPdAue4
MIC2202YML-TR0.64370210VDFN3x3x0.9mmNiPdAue4
MIC2202YML0.04800010VDFN3x3x0.9mmNiPdAue4
MIC2202 - High Efficiency 2MHz Synch Buck Converter 1µF Stable PWM Regulator MIC2202
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