Ultra-low quiescent LDO voltage regulator in TSMC 22ULL

Key Benefits

  • Ultra-low quiescent LDO to supply always-on loads (eg: SRAM in retention mode)

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
- - 1 mA -
Quiescent current typical value
EN=1, at 25 ˚C, No load, Vout between 0.58V and 0.9V - 160 nA -
Accuracy
PVT, including Line and Load Regulation, ILOADfrom 0 to IMAX - - -8 to +8%
Efficiency
- - - -
PSRR
F < 150 Hz - -20 dB -

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

  • output voltage 0.6 - 0.9V
  • quiescent 150 nA
  • Leakage (shutdown mode) 55 nA
  • PSSR -45dB @DC -20dB @150Hz
  • silicon area 0.049 mm²

Technical information

  • Technology: TSMC 22 uLL
  • Embedded features:
    • Current-limit and Short circuit protection
  • Add-ons:
    • -