MIC2827 Triple Output PMIC


Triple Output PMIC with HyperLight Load™ DC-DC, Two LDOs, and I2C Control - Available at Digi-Key

Click to Enlarge - MIC2827 Diagram Micrel, Inc.'s MIC2827 is a three output, programmable power management IC, optimized for high efficiency power support in mobile application processors, co-processors, DSPs, GPS and media player chipsets. The device integrates a single 500mA PWM/PFM synchronous buck (step-down) regulator with two low dropout regulators and a 400kHz I2C interface that provides programmable Dynamic Voltage Scaling (DVS), power sequencing, and individual output enable/disable controls allowing the user to optimally control all three outputs.     MIC2827 Datasheet

  Features   Applications
  • Fast-mode I2C control interface
  • Tiny 14-pin 2.5mm x 2.5mm MLF® package
  • Default start-up voltage states and sequencing
  • Fault indication processor flag - IRQb
  • -40°C to 125°C junction temperature range
  • Thermal shutdown and current-limit protection
  • Power On After Fault (POAF) function
  • Application processors
  • GPS subsystems
  • General purpose PMIC
  • Mobile phones / PDAs
  • Portable media players
  • Mobile television receivers

  DC-DC Synchronous Buck   LDOs
  • 2.7V to 5.5V input voltage range
  • 500mA continuous output current
  • HyperLight Load™ mode
      -   25µA quiescent current
  • 90% peak efficiency; 85% at 1mA
  • Ultra-fast transient response
  • Dynamic Voltage Scaling (DVS) range: 0.8V to 1.8V
      -   0.8V to 1.2V in 25mV steps
      -   1.2V to 1.8V in 50mV steps
  • ±3% over temperature
  • Low output voltage ripple: 20mVpp in HyperLight Load™ mode, 3mV in full PWM mode
  • 1.8V to VDVIN input voltage range
  • 150mA output current (each LDO)
  • Dynamic Voltage Scaling (each LDO)
      -   DVS range: 0.8V to 3.3V in 50mV steps
  • ±3% over temperature
  • Low quiescent current - 50µA (each LDO)
  • Low dropout voltage - 50mV @ 50mA
  • Low output noise - 45µVRMS
  • Stable with ceramic output capacitors
  • 65dB PSRR at 1kHz

Micrel
Part Number
Digi-Key
Part Number
Packaging Default Start Up Voltages Default Start Up Sequence
DC-DC LDO1 LDO2 DC-DC LDO1 LDO2
MIC2827-B2YMT TR 576-3531-2-ND Tape & Reel 1.8V 1.2V 2.8V 1 2 3
576-3531-1-ND Cut Tape
576-3531-6-ND Digi-Reel®