STMicroelectronics Voltage Regulator 38V 3A Step-Down Switching HSOP 8-Pin A7986ATR

The STMicroelectronics A7986ATR is a high-performance step-down switching voltage regulator capable of delivering a minimum of 3 A current to the load via a built-in power MOSFET. It supports a wide input voltage range from 4.5 V up to 38 V, suitable for automotive-grade applications that comply with the AEC-Q100 standard. The output voltage can be precisely adjusted starting from 0.6 V up to the input voltage, providing design flexibility for various electronic circuits.

This device operates with a fixed switching frequency oscillator of 250 kHz, which is programmable externally up to 1 MHz, allowing designers to optimize efficiency and size of external components. It features an internal soft-start mechanism and enable control, reducing inrush current and enhancing system reliability during power-up.

The low dropout operation with 100% duty cycle ensures consistent voltage regulation even at low voltage differentials. Its voltage feed-forward and zero load current modes improve transient response and reduce power loss. Overcurrent and thermal protection safeguards the regulator and connecting circuits from damage under fault conditions.

Packaged in an HSOP 8-pin form factor with an exposed pad, this Voltage Regulator benefits from improved thermal performance with a thermal resistance junction-to-ambient (RthJA) of approximately 40 °C/W, making it suitable for compact and thermally demanding environments.

Ideal for automotive LED driving and other automotive electronic systems, the A7986ATR provides robust voltage regulation under varying operating conditions up to a maximum temperature of 150 °C. Its surface mount HSOP package ensures easy PCB assembly and stability in automotive-grade environmental conditions.

Delivers 3 A DC output current with integrated power MOSFET. Input voltage range: 4.5 V to 38 V. Adjustable output voltage from 0.6 V to VIN. Switching frequency: 250 kHz, programmable up to 1 MHz. Features internal soft-start and enable control.

Supports low dropout operation with 100% duty cycle. Incorporates voltage feed-forward and zero load current operation. Includes overcurrent and thermal protection. HSOP 8-pin package with exposed pad for thermal efficiency.

This product is part of STMicroelectronics' automotive-grade power management IC family and is designed for demanding industrial and automotive applications requiring efficient voltage regulation. Explore additional power management ICs and electronic components from STMicroelectronics and related brands at EnvMart for your engineering projects.