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ULDO Linear Regulator provides more than 1.5 A output.

Press Release Summary:

ULDO Linear Regulator provides more than 1.5 A output.

June 9, 2014 - Operating with input voltages from 2.8–5.5 V, Model XTR70010 can provide 32 different output voltages in steps of 100 mV from 0.5–3.6 V, with no external resistor. Device features hiccup over current protection, low-power mode, UVLO, thermal shutdown, and output overshoot limitation. With dropout voltage of 0.9 V per Amp of output current at 230°C, regulator is suitable for power supplies for microprocessors, memories, and sensors, as well as post regulation after POL DC-to-DC converters.

X-REL Semiconductor - Grenoble, FRA

Original Press Release

X-REL Semiconductor XTR70010 1.5Amp ULDO Linear Regulator

Press release date: May 30, 2014

Grenoble, France, -- X-REL Semiconductor, the specialist in high reliability and extreme temperature Integrated Circuits, broadens its Power Management product line by introducing an innovative ultra-low dropout (ULDO), high current, linear regulator XTR70010. Intended for high-reliability, extreme temperature and extended lifetime power supply applications, the XTR70010 brings unprecedented performance in terms of power losses, output voltage stability (over input voltage, load current and temperature) and reduction of the Bill-of-Material (BoM). Indeed, not only the XTR70010 can provide 32 different output voltages with no external resistor, but also it may operate as a capacitor-less regulator in applications where the output current does not present rapid transients.

The most noticeable feature of this regulator is its dropout voltage of only 0.9V per Amp of output current at 230°C, having only a half the power losses of its closest competitor and largely outperforming other regulators in the extreme temperature market. Capable to operate with input voltages from 2.8V to 5.5V and provide more than 1.5A of output current with no requirement on the minimum dropout at lower currents, the XTR70010 can provide 32 different output voltages in steps of 100mV from 0.5V to 3.6V based on only internal settings or operate as other regulators in the market where the output voltage is set by an external resistor divider.

The ability of the XTR70010 to operate from input voltages as low as 2.8V together with its ultra-low dropout capability makes it ideal for power supplies for microprocessors, memories, sensors and for post regulation after a low voltage Point-of-Load (POL) DC-to-DC converters.

Among the several state-of-the-art protections and features, the XTR70010 includes hiccup over current protection, low-power mode, under-voltage-lockout (UVLO), thermal shut-down with variable threshold, output overshoot limitation, protection against badly decoupled input networks, soft startup and soft shut down.

Gonzalo Picun, CTO at X-REL Semiconductor, emphasized “With the release of its ULDO, high-current, low supply voltage linear regulator, X-REL Semiconductor is not at all entering in a “me-too” strategy, but instead introducing a cutting-edge device that breaks the old frontiers and unleashes new paradigms in power supply design for high reliability, extreme temperature applications”.

As any other X-REL Semiconductor product, the XTR70010 is able to reliably operate well below and above the -60°C +230°C (5 years at +230°C) temperature range. Being operational at high temperatures is mandatory not only in applications where the environment is at elevated temperature, but also where self-heating of a power device makes the temperature increase inside the application casing. Additionally, all X-REL Semiconductor products can be used in applications running at lower temperatures (e.g. from 100°C to 200°C) where extended lifetime is expected or where failing is not an option. For example, the expected lifetime of X-REL Semiconductor parts in a driver application operating at Tj=150°C is over 35 years.

The XTR70010 is already available and can be immediately deployed on niche as well as on large-scale markets in high-reliability compact hermetic or plastic packages, as well as bare dies.

About X-REL Semiconductor (
X-REL Semiconductor is a French fabless company commercializing standard semiconductor products and ASIC’s, as well as customized electronic solutions for HiRel HiTemp applications in markets such as Aeronautics & Space, Transportation & Automotive, Harsh Environments, Oil / Gas & Geothermal, Military, Energy and Industrial.

Contact Information:
X-REL Semiconductor (Easii IC spin off)
90 Avenue Léon Blum, 38100 Grenoble, France
Phone: +33 4 56 580 569
Fax: +33 4 56 580 599


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