The caplessLDO-ref-[1.8-5.5]-[0.9-1.4].01 is a capacitor-less Linear Regulator with programmable output voltage, used to generate SoC internal voltage supply from a Li-Ion battery, coin cell, 2xAA batteries, USB (i.e. 1.8 V to 5.5 V input supply) It embeds its own logic control and biasing circuit, enabling to operate as a standalone component.

Key Benefits

  • Low BoM, no external capacitor required
  • Low shutdown current to ensure low power power consumption in sleep mode when the LDO is turned off
  • Three modes : operation, IDLE and STOP1 to enable various power modes at SoC-level

Key Features

Minimum value
Typical value
Maximum value
Input Voltage
- 1.8 V 5.5 V
Output Voltage
- 0.9 V 1.4 V
Output current configuration
- - 50 mA -


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

Key Performances

  • Input voltage from 1.8V to 5.5V
  • Programmable output voltage from 0.9V to 1.4V
  • Up to 50 mA output current in operation mode
  • +/- 3.5 % DC accuracy
  • A Regulation OK signal (ROK) informs the PMU controller that the caplessLDO-rok-[1.8-5.5]-[0.9-1.4].01 has completed its booting sequence and the output is maintaining regulation for the current drawn by the load.

Technical information

  • Technology: Samsung 65 LP eFlash