Nano power DC-DC converter in TSMC 22ULL with ultra-low quiescent current and high efficiency at light load, supporting 1.62V to 3.63V input voltage

Key Benefits

  • Ultra-low quiescent current (< 250 nA) to ensure minimum current consumption in deep sleep / hibernation mode
  • High efficiency at light load to extend battery lifetime
  • Low ripple value to supply noise sensitive and RF loads
  • 1 uH inductor
  • Ultra-small area for reduced silicon cost

Key Features

PARAMETERS CONDITION
Minimum value
Typical value
Maximum value
Input Voltage
- 1.62 V 3.63 V
Output Voltage
- 0.6 V 2.5 V
Output current configuration
- - 100 mA;10 mA;200 mA;300 mA;30 mA;400 mA;500 mA;50 mA -
Quiescent current typical value
TT, 25 - 275nA -
Accuracy
DC - - 3%
Efficiency
Peak (3.3 > 1.8) - - 80%

Applications

  • Smart Headset
  • TWS Earpods
  • Smart Speaker
  • Voice Assistant
  • Hearing aids
  • Voice-controlled devices
  • Bluetooth
  • NB-IoT
  • ULP MCU
  • WiFi
  • GNSS
  • Cellular IoT

Key Performances

  • 280 nA Quiescent current (for I100uHDO configurations)
  • 155 nA fast-shutdown current (for I100uHDO configurations)
  • Up to 87 % peak efficiency (3.3VIN to 1.8 VOUT ) Up to 83 % peak efficiency (3.3VIN to 0.8 VOUT ) (for I300HDO configurations)
  • 80 % efficiency down to 0.001 IMAX (for I100HDO configurations)
  • 70 % efficiency for 10uA of load (for I100HDO configurations)
  • 3 % DC output voltage accuracy

Technical information

  • Technology: TSMC 22 uLL
  • Add-ons:
    • -