Torex Introduces Automotive AEC-Q100 Grade 1-Compliant 36V/600mA Compact Step-Down DC/DC Converter XD9704/XD9705 Series

TOKYO--(BUSINESS WIRE)--Aug 6, 2026--

Torex Semiconductor Ltd. (Tokyo Japan: President, Takeshi Kimura, TOKYO Prime: 6616) has launched the XD9704/XD9705 series, a new family of automotive step-down DC/DC converters compliant with the AEC-Q100 Grade 1 standard.
The XD9704/XD9705 series is a compact, low-power synchronous buck DC/DC converter with a 36V input rating and 46V peak voltage capability (≤400ms), making it suitable for automotive +B power supply applications. It provides up to 600mA output current for communication modules, sensors, and other automotive and industrial systems, while supporting an operating temperature range of -40°C to +125°C.

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Operating at a 2.2MHz switching frequency, the series enables the use of small inductors and capacitors, reducing the total mounting area to just 48.7mm². With a quiescent current of only 11μA, it achieves up to 90% efficiency under VIN=12V, VOUT=5V, and IOUT=1mA, delivering high efficiency across light to heavy loads while providing an effective alternative to conventional medium- and high-voltage LDO regulators with reduced heat generation.

Unlike conventional DC/DC converters that use an N-channel driver FET, the XD9704/XD9705 series integrates a P-channel driver FET, enabling 100% duty-cycle operation. During engine cranking or other low-input-voltage conditions, the converter can pass the input voltage directly to the output, ensuring reliable operation even with a small input-to-output voltage differential. The devices also feature Power Good and soft-start functions to simplify power sequencing.

The XD9704 series features fixed F-PWM control for low-ripple operation, while the XD9705 series employs automatic PWM/PFM mode switching for maximum efficiency over a wide load range. The series is available in the SOT-89-5 package, with the compact DFN1820-6J package (under development) planned to further expand design flexibility for space-constrained automotive and industrial applications.

For more news information, please click:
https://product.torexsemi.com/en/news/product/20260806_4989

For more details on the XD9704, please click:
https://product.torexsemi.com/en/series/xd9704

For more details on the XD9705, please click:
https://product.torexsemi.com/en/series/xd9705

Torex Semiconductor Ltd. is a leading provider of CMOS power management ICs targeted toward battery powered and energy efficient applications. Torex specializes in CMOS analog technology, with LDO voltage regulators, voltage detectors and DC/DC converters making up our core product offering.
Torex website http://www.torexsemi.com/

Replacement of LDO with XD9704/XD9705 Series

NONTHABURI, Thailand (AP) — A student shot several people at a high school outside Bangkok on Friday, killing three teachers and three students and wounding several others, police said.

The shooting happened at the Debsirin Nonthaburi School in Nonthaburi province northwest of the national capital, Royal Thai Police spokesperson Trairong Piwpan told The Associated Press.

He later told news broadcaster Channel 3 the shooter was being hospitalized in serious condition and 15 others were injured, with two in critical condition.

He said the motive was still being investigated. He said the gun was believed to have been taken from a member of the student’s family.

Prime Minister Anutin Charnvirakul offered his condolences and said he had ordered relevant officials to take care of the victims.

Images from the scene about an hour after the shooting showed people standing outside the school comforting one another and police and first responders walking around inside the school.

A witness told reporters that students hid inside a classroom while they heard gunshots from another building before police officers knocked on the door and cleared a way for them to leave the building.

In February, a 17-year-old stole a gun from police and opened fire at a public high school in southern Thailand, briefly taking people hostage in a two-hour attack that killed one person and injured two others.

In 2023, a 14-year-old boy was accused of a shooting at a major Bangkok shopping mall.

A parent leaves after picking his child after a shooting at the Debsirin Nonthaburi School in Thailand's Nonthaburi province, Friday, Aug. 7, 2026. (AP Photo/Sakchai Lalit)

First responders and others stand inside after a shooting at the Debsirin Nonthaburi School in Thailand's Nonthaburi province, Friday, Aug. 7, 2026. (AP Photo/Sakchai Lalit)

A schoolgirl cries outside her school where deaths and injuries were reported after a shooting in Thailand's Nonthaburi province, Friday, Aug. 7, 2026. (AP Photo/Sakchai Lalit)

A crowd gathers outside a school where deaths and injuries were reported after a shooting in Thailand's Nonthaburi province, Friday, Aug. 7, 2026. (AP Photo/Sakchai Lalit)

A schoolgirl cries outside her school where deaths and injuries were reported after a shooting in Thailand's Nonthaburi province, Friday, Aug. 7, 2026. (AP Photo/Sakchai Lalit)