Skip to main content

TCR3RM-Series of Low Noise Ultra-Compact LDO Voltage Regulators with High Ripple Rejection Ratio for Wearable and IoT Applications

TCR3RM LDO Voltage Regulators from Toshiba Electronics
TCR3RM LDO Voltage Regulators from Toshiba Electronics

Toshiba Electronics has introduced the TCR3RM series of low noise ultra-compact low dropout (LDO) voltage regulators in a plastic DFN4C package measuring 1.00 mm x 1.00 mm x 0.38 mm. The series comprises 32 product variants with fixed single output voltage in the range of 0.9 VDC to 4.5 VDC and a maximum output current of 300mA. Unlike other LDO regulators where the ripple rejection ratio usually drops 20 dB every 10-fold increase in frequency, the TCR3RM falls significantly less. When the output voltage is 2.8V The TCR3RM series features high ripple rejection ratio characteristics of 100 dB at 1 kHz and 68dB at 1MHz.


The device may deliver a high degree of power supply line stability and voltage accuracy when the ripple rejection attributes of the TCR3RM series are coupled with its low noise credentials, typically 5 µVrms at 10 Hz ≤ f ≤ 100 kHz. Features such as the bandgap circuit, a low pass filter, and a low-noise, high-speed operational amplifier allow the TCR3RM series to provide high ripple rejection and output noise specifications.


The regulators are suitable for use in a wide variety of portable and wearable devices, such as sensors, RF devices, and IoT applications or any applications where the available board space is at a premium and high-density mounting is required.


Features of TCR3RM Series

  • Low output noise voltage (VNO = 5 μVrms (Typ.) at 10Hz ≤ f ≤ 100kHz)
  • Low quiescent current ( IB = 7 μA (Typ.) at IOUT = 0 mA)
  • Low Dropout voltage VDO = 130 mV (Typ.) at 2.8 V-output, IOUT = 300 mA
  • Wide range output voltage line up (VOUT = 0.9 to 4.5 V)
  • Pull down the connection between CONTROL and GND
  • Ceramic capacitors can be used (CIN = 1 μF, COUT =1 μF)


Note: More technical information can be found in the TCR3RM Series Datasheet linked at the bottom of this page and on the TCR3RM Series product page.

Component Datasheet

Related Post


Join 20K+subscribers

We will never spam you.

* indicates required

Be a part of our ever growing community.