ST’s A6983 is an easy-to-use synchronous monolithic step-down regulator, capable of delivering up to 3 A DC to the load. The wide input voltage range of 3,5 to 38 V makes the device suitable for a broad range of applications. The A6983 is based on peak current mode architecture and is packaged in a QFN16 (3 x 3 mm) with internal compensation, thus minimising design complexity and size.
The ‘Low Consumption Mode’ (LCM) is designed for applications active during car parking, so it maximises the efficiency at the light-load with the controlled output voltage ripple.
The ‘Low Noise Mode’ (LNM) makes the switching frequency constant and minimises the output voltage ripple overload current range, which meets the low noise application specification, such as for car audio. The A6983 allows the switching frequency to be selected in the 200 kHz to 2,3 MHz range, with optional spread spectrum for improved EMC.
An EN pin provides enable/disable functionality on the converter. When disabled, the typical shutdown current is only 2 μA. As soon as the EN pin is pulled high, the device is enabled, and the internal 1,3 ms soft-start takes place.
The A6983 features a Power Good open collector that monitors the FB voltage. Pulse by pulse current sensing on both power elements implements an effective constant current protection, and thermal shutdown prevents thermal runaway.
New compact AC-DC PSU series Vepac Electronics
Power Electronics / Power Management
COSEL has announced the expansion of its medical power offering with the addition of the new UMA series, the first three models being the 30 W UMA30F, the 60 W UMA60F and the 120 W UMA120F.
Read more...High reliability memories Altron Arrow
DSP, Micros & Memory
Infineon’s mil-temp memories offer a wide selection of volatile and non-volatile memories for applications that meet QML-Q certifications and offer support for mil-aero applications.
Read more...Reference board for cardio monitoring Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STDES-ESP01 reference board from STMicroelectronics demonstrates the capability of the ST1VAFE6AX and ST1VAFE3BX biosensors to detect ECG and SCG signals.
Read more...USB Type-C-powered controllers Future Electronics
Power Electronics / Power Management
Diodes Incorporated has released two USB Type-C PD 3.1 extended power range sink controllers that can be embedded into battery-powered devices.
Read more...ST MCUs extend ultra-low power innovation Altron Arrow
DSP, Micros & Memory
STMicroelectronics has introduced new STM32U3 microcontrollers with cutting-edge power-saving innovations that ease deployment of smart connected tech, especially in remote locations.
Read more...Multicell battery monitoring Altron Arrow
Power Electronics / Power Management
The LTC6811 from Analog Devices is a multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1,2 mV.
Read more...Innovative satellite navigation receiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released an innovative satellite navigation receiver to democratise precise positioning for automotive and industrial applications.
Read more...LED driver for industrial power supply indication Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
printer friendly version