Toshiba Launches New Lineup of Load Switch ICs that Reduce System Power Consumption

February 23, 2016

Feature Low On-Resistance, Low Quiescent Current

Toshiba TCK106AF, TCK107AF and TCK108AF
Toshiba TCK106AF, TCK107AF and TCK108AF

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 three new single-chip load switch ICs: the TCK106AF, TCK107AF and TCK108AF. By mounting high performance chips on the industry standard SOT-25 package, Toshiba’s new ICs feature: low on-resistance, low quiescent current, low loss, low standby current, high performance switching characteristics, and mountability for general use. The new products help reduce the power consumption of various types of electronic equipment, including mobile devices1.

Fabricated using a Toshiba CMOS process that contains an output transistor and an output driver, the new single chip IC load switches provide a smaller footprint than switches composed of multiple discrete components, making them well-suited to space-critical portable applications. The TCK106AF, TCK107AF and TCK108AF help reduce power consumption in applications including tablets, laptops, DSCs, DVCs, and audio and gaming equipment.

In addition, with integrated slew rate control drivers and low on-resistance P-ch MOSFETs and N-ch MOSFETs, Toshiba’s load switch ICs reduce system power consumption via power supply distribution or power supply control for each function block. The new products allow for low-leakage load switching, while maintaining a low on-resistance.

“We’ve developed these new power supply ICs to meet the requirements of electronic equipment that needs to be driven by batteries for extended periods of time,” noted Talayeh Saderi, business development manager for TAEC. “The new products enable safe and stable system design within a compact space, and are suitable for power supply systems that require precise sequence control.”

Key Features:

  • Low on-resistance:
    RON=63 mΩ (typ.) @VIN=5.0 V
    RON=71 mΩ (typ.) @VIN=3.3 V
    RON=101 mΩ (typ.) @VIN=1.8 V
    RON=175 mΩ (typ.) @VIN=1.2 V
  • Low quiescent current:IQ=110 nA (typ.) @VIN=5.5 V
  • Maximum output current rating: IOUT=1.0 A
  • Wide operating input voltage: VIN=1.1 to 5.5 V
  • Built in slew rate control driver
  • Built in auto-discharge (TCK107AF, TCK108AF)
  • General-purpose SOT-package (SMV, 2.9×2.8mm, t: 1.1mm) 

Main Specifications

Part number


RON typ. (m O)

Quiescent current IQ typ. @ VIN=5.5 V (nA)



63 @ VIN=5.0 V

71 @ VIN=3.3 V

101 @ VIN=1.8 V

175 @ VIN=1.2 V












Pricing and Availability

Toshiba’s new load switch ICs are available. Please contact your local Toshiba Sales Office for samples.

*About 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), solid state hybrid drives (SSHDs), discrete devices, custom SoCs/ASICs, imaging products, microcontrollers, wireless components, mobile peripheral devices, advanced materials and medical tubes that make possible today’s leading smartphones, tablets, cameras, medical devices, automotive electronics, industrial applications, 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, solid state drive and hard disk drive manufacturer and the world’s seventh largest semiconductor manufacturer (Gartner, 2015 Worldwide Semiconductor Revenue, January, 2016). Founded in Tokyo in 1875, Toshiba is at the heart of a global network of over 580 consolidated companies employing over 199,000 people worldwide. Visit Toshiba's web site at

1When compared to use of other solutions for load switch purposes
2The control signal for output ON

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.

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