Toshiba Debuts New Series of CMOS-LDO Regulators for Mobile Devices

September 25, 2012

Featuring Low Noise Output and the Industry's Highest Level of Drop-Out Voltage in an Ultra-Small Package

IRVINE, Calif., — Toshiba America Electronic Components, Inc., (TAEC)*, a committed leader that collaborates with technology companies to create breakthrough designs, today announced the introduction of a new lineup of CMOS-LDO regulators for mobile devices. The new lineup features Toshiba's newly developed micro CMOS process and offers the highest level of drop-out voltage in the industry. The new regulators also achieve low noise output, low consumption current and excellent load transient response.

CMOS-LDO regulators have become the power management ICs of choice for mobile devices, as they enable a low profile, low supply current and low dropout. Toshiba's new TCR2EN, TCR2EE, TCR2EF, and TCR2DG series utilize a newly developed micro CMOS process, which helps the regulators to significantly improve the tradeoff between characteristics and size. Toshiba's TCR2DG is a 200mA output single LDO regulator which achieves a low-noise output of 18µVrms (2.5V output), excellent ripple rejection ratio 62dB at a high frequency (2.5V output, f = 10kHz), excellent responsibility under high-speed loads of ⊿ VOUT = ±65mV (IOUT = 1mA ⇔ 150mA, COUT = 1.0µF), and low drop-out characteristics of 80mV (2.5V output, IOUT = 100mA). By using an ultra-small (0.79mm x 0.79mm x 0.5mm) WCSP4 package, this LDO regulator is suitable for applications requiring high-density packaging, such as mobile devices.

In addition to overcurrent protection, output auto-discharge, and other basic functions, the new lineup of 200mA output LDO regulators control inrush current, making them suitable for a wide range of applications including mobile phones, portable audio players, notebook PCs, DSC/DVC, and other small mobile devices.

According to Talayeh Saderi, senior business development engineer for TAEC, "An ideal power management solution for mobile devices using battery power, CMOS LDOs provide space conscious designers with cost effective performance advantages - all while extending battery life."

Features include:

TCR2EN Series

  • Contributes to space saving with the industry's smallest class package
  • Output can be fixed in a range from 1.2V to 3.6V in 50mV steps
  • Low bias current (IB = 35µA (max.) at IOUT = 0mA)
  • Excellent load transient response
  • Overcurrent protection
  • Inrush current control

Lineup of TCR2EN Series (SDFN4, 0.8mm x 0.8mm x 0.38mm)

Part number Output voltage
TCR2EN12 1.2V
TCR2EN18 1.8V
TCR2EN28 2.8V
TCR2EN29 2.9V
TCR2EN30 3.0V

spacerTCR2EE and TCR2EF Series

  • Low drop-out voltage
  • Low output noise voltage
  • Load transient response characteristics
  • Low bias current
  • High ripple removal rate
  • Output voltage lineup: 1.0 to 3.6V (Fixed output type)
  • High output voltage accuracy: ±1.0 percent (VOUT ≥ 1.8V)
  • Built-in auto discharge function and pull-down control terminal connection

Lineup of TCR2EE, TCR2EF Series

Part number Output voltage
SOT553 (ESV) SOT-25 (SMV)
TCR2EE10 TCR2EF10 1.0V
TCR2EE11 TCR2EF11 1.1V
TCR2EE12 TCR2EF12 1.2V
TCR2EE13 TCR2EF13 1.3V
TCR2EE18 TCR2EF18 1.8V
TCR2EE28 TCR2EF28 2.8V
TCR2EE30 TCR2EF30 3.0V
TCR2EE33 TCR2EF33 3.3V

TCR2DG Series:

  • Low noise output
    VNO = 20µVrms (typ.) at 3.0V output, IOUT = 10mA, 10Hz < f < 100kHz
    VNO = 18µVrms (typ.) at 2.5V output, IOUT = 10mA, 10Hz < f < 100kHz
    VNO = 14µVrms (typ.) at 1.2V output, IOUT = 10mA, 10Hz < f < 100kHz
  • High ripple rejection ratio
    RR = 75dB (typ.) at 2.5V output, IOUT = 10mA, f = 1kHz
    RR = 62dB (typ.) at 2.5V output, IOUT = 10mA, f = 10kHz
    RR = 50dB (typ.) at 2.5V output, IOUT = 10mA, f = 100kHz
  • High-speed load transient response
    ⊿ VOUT = ±65mV (typ.) at IOUT = 1 ⇔ 150mA, COUT =1.0µF
  • Low drop-out voltage
    V IN -VOUT = 80mV (typ.) at 2.5V output, IOUT = 100mA
  • The voltage-clamp type output voltage can be set between 1.2V and 3.6V in increments of 50mV.
  • Output voltage accuracy: ±1.0 percent
  • Built-in overcurrent protection circuit
  • Built-in overtemperature protection circuit
  • Ultra-small package contributes to reductions in space required

Lineup of TCR2DG Series (WCSP4: 0.79x0.79x0.5mm)

Part number Output voltage Package
TCR2DG12 1.2V


TCR2DG13 1.3V
TCR2DG15 1.5V
TCR2DG18 1.8V
TCR2DG25 2.5V
TCR2DG28 2.8V
TCR2DG30 3.0V
TCR2DG33 3.3V
TCR2DG36 3.6V

Pricing and Availability

Toshiba's lineup of CMOS-LDO regulators is currently available. For datasheets and samples, please contact your Toshiba representative.

spacer* About Toshiba Corp. and TAEC

Through proven commitment, lasting relationships and advanced, reliable electronic components, Toshiba enables its customers to create market-leading designs. Toshiba is the heartbeat within product breakthroughs from OEMs, ODMs, CMs, VARs, distributors and fabless chip companies worldwide. A committed electronic components leader, Toshiba designs and manufactures high-quality flash memory-based storage solutions, solid state drives (SSDs), hard disk drives (HDDs), discrete devices, advanced materials, medical tubes, custom SoCs/ASICs, imaging products, microcontrollers and wireless components that make possible today's leading smartphones, tablets, MP3 players, cameras, medical devices, automotive electronics, enterprise solutions and more.

Toshiba America Electronic Components, Inc. is an independent operating company owned by Toshiba America, Inc., a subsidiary of Toshiba Corporation, Japan's largest semiconductor manufacturer and the world's third largest semiconductor manufacturer (Gartner, 2011 Worldwide Semiconductor Revenue, March, 2012). Toshiba Corporation was founded in 1875 and today has over 554 subsidiaries and affiliates, with 210,000 employees worldwide. Visit Toshiba's web site at

Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications.

Editors Note: Images available for download from:

LGSS 12 646

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