CMOS LDOs Go Mobile

Housed in small packages, Toshiba's TCR4DG series CMOS low-dropout (LDO) regulators includes general-purpose, single-output voltage regulators with on/off control input, low output noise voltage and low inrush current. The devices are available in fixed output voltages between 1.0V and 4.5V and are capable drive currents up to 420 mA.


Small ceramic input and output capacitors can be used with the TCR4DG series, making these devices suitable for mobile applications that require high-density board assembly, such as cell phones. The new regulators are offered in an ultra-small plastic mold WCSP4E package (0.645mmx0.645mm (typical); t:0.43mm (max)) and feature over-current protection, over-temperature protection, inrush current protection, and auto-discharge functionality. Features include:

Fierce AI Week

Register today for Fierce AI Week - a free virtual event | August 10-12

Advances in AI and Machine Learning are adding an unprecedented level of intelligence to everything through capabilities such as speech processing and image & facial recognition. An essential event for design engineers and AI professionals, Engineering AI sessions during Fierce AI Week explore some of the most innovative real-world applications today, the technological advances that are accelerating adoption of AI and Machine Learning, and what the future holds for this game-changing technology.
  • Low drop-out voltage: VDO=193mV (typ.) at 3.3V-output, IOUT=420mA
  • Low output noise voltage: VNO=38μVrms (typ.) at 2.5V-output, IOUT=10mA, 10Hz<=f<= 100kHz
  • Fast load transient response (VOUT =±115mV (typ.) at IOUT = 1420mA, COUT=1.0μF )
  • High ripple rejection (R.R=70dB (typ.) at 2.5V-output, IOUT=10mA, f=1kHz )
  • Over-current protection
  • Over-temperature protection
  • Inrush current protection circuit
  • Auto-discharge function
  • Pull down connection between CONTROL and GND 

Checkout a datasheet and visit the Toshiba website for more details.

Suggested Articles

HP leads the pack, but Apple sees 36% surge in notebooks, desktops compared to a year ago

New York City residents moving upstate will give hundreds of towns extra tax revenue to invest in new streetlights with IoT sensors, NYPA foresees

With about one-fifth the revenues of Intel, Nvidia’s market capitalization exceeds Intel’s as Nvidia stock hits record high