Toshiba launches small LDO regulator ICs for IoT applications

Small, LDO regulators from Toshiba Electronics Europe combine low quiescent bias current, high ripple rejection and fast transient response, says the company.

The TCR3UG series of LDO regulators have an output current of 300mA, making them suitable for power management of IoT modules, wearable devices and smartphones.

Design engineers always need to consider the trade-off between the quiescent bias current, the ripple rejection ratio and load transient response of an LDO, advises Toshiba. Claimed to have the lowest quiescent current, the TCR3UG series regulators offer the industry’s best trade-offs between these characteristics by supporting excellent ripple rejection and transient response, says Toshiba. They also deliver protection features, including thermal shutdown, over-current protection and inrush current suppression.

The TCR3UG series of LDO regulators are housed in the WCSP4F package, which measures just 0.645 x 0.645mm with a maximum thickness of only 0.33mm. These dimensions help to reduce the size, especially the thickness, of mobile devices in applications such as smart cards.

The regulators have an input voltage range of 1.5 to 5.5V DC and exhibit a quiescent current of typically just 340nA. With this low quiescent current, they still offer an excellent ripple rejection ratio of 70dB and a load transient response of ±60mV, adds Toshiba.

The LDO regulators are suitable for use as part of the power supply in applications that require long battery life, as well as applications that are susceptible to noise or fluctuations of the supply voltage, advises Toshiba.

The TCR3UG series regulators are available with 31 output voltages, ranging from 0.8 to 5.0V. Additionally, variants with and without automatic output discharge are available, allowing designers to select the device that best meets the application’s requirements. Shipment of the first products in the series has commenced.

Toshiba Electronics Europe GmbH (TEE) is the European electronic components business of Toshiba Electronic Devices and Storage Corporation. TEE offers European consumers and businesses a variety of hard disk drive (HDD) products and semiconductors for automotive, industrial, IoT, motion control, telecomms, networking, consumer and white goods applications. The company’s portfolio encompasses integrated wireless ICs, power semiconductors, microcontrollers, optical semiconductors, ASICs, ASSPs and discrete devices ranging from diodes to logic ICs. 

Latest News from Softei

This news story is brought to you by, the specialist site dedicated to delivering information about what’s new in the electronics industry, with daily news updates, new products and industry news. To stay up-to-date, register to receive our weekly newsletters and keep yourself informed on the latest technology news and new products from around the globe. Simply click this link to register here: Softei Registration