Inductor-based buck switching regulator generating the SoC internal voltage supply from rails, lithium coin cell or 2xAA batteries.

Key Benefits

  • High efficiency buck regulator (up to 95% in peak), thanks to dual mode (dm) controller
  • Pulse Frequency Modulation (PFM) mode at low load and Pulse With Modulation (PWM) mode at high load.
  • Low Bill-Of-Material: fully integrated feedback and active compensation loop do not require additional external passive components.
  • Behavioral models: ease integration in SoC and optimized Power Management Network (PMNet) by verifying mode transitions as well as noise propagation

Key Features

PARAMETERS CONDITION
Minimum value
Typical value
Maximum value
Input Voltage
- 1.62 V 3.63 V
Output Voltage
- 0.8 V 2.5 V
Output current configuration
- - 200 mA -

Applications

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

Key Performances

  • Up to 95% peak efficiency (for NDO configurations).
  • 90 % efficiency down to 0.2 IMAX (for NDO configurations).
  • 70 % efficiency down to 0.01 IMAX (for NDO configurations).
  • 3 % DC output voltage accuracy

Technical information

  • Technology: TSMC 40 LP
  • Add-ons:
    • Over-voltage protection module (OPM) required for 2.7 to 5.5 V and 1.9 to 4.4 V input voltage range. The OPM enables over-voltage operation (up to 5.5 V) while using standard process 3.3 V devices.
    • Power-On-Reset and Brown-On-Reset circuit (POR-BOR)
    • Temperature sensor
    • Power ON indicator