Low-quiescent DC/DC converter in TSMC 22ULL 2.5 V process with high efficiency at light load.

Key Benefits

  • Low quiescent-current minimizing deep-sleep budget
  • High-efficiency at light load extending battery lifetime
  • Low ripple level compatible with noise sensitive loads
  • Support of small, low-cost 1 uH inductor
  • Configurable architecture
  • Minimized silicon area

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;600 mA -

Applications

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

Key Performances

  • 295 nA quiescent current (I100HDO configuration)
  • 150 nA fast-shutdown current (I100HDO configuration)
  • Up to 90 % peak efficiency for Vin=3.3V to Vout=1.8V (I100HDO configuration)
  • Up to 80 % peak efficiency for Vin=3.3V to Vout=0.8V (I100HDO configuration)
  • 78 % efficiency at 100 µA load current (I100HDO configuration)
  • 73 % efficiency for 10 µA load current (I100HDO configuration)
  • 3 % DC output voltage accuracy

Technical information

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