New from Linear Technology is the LTM8026, a 36 V input, 5 A step-down μModule regulator with an adjustable and ±10% accurate current limit. The current limit enables designers to set the maximum amount of power drawn from the supply, preventing input voltage droop caused by over-current conditions.
When multiple LTM8026s are configured with the outputs tied together, each converter can be programmed with a unique maximum current limit to meet its specific input supply limitations for greater output power, a technique known as asymmetric power sharing.
In contrast, common regulators must current share, a feature where each input supply contributes equally to the load, which is restricted by the least powerful input rail. Applications for the LTM8026 include point-of-load regulation in systems with 24 V and 12 V supplies such as VXI bus, for automotive, medical and industrial end-markets.
Like other μModule regulators, the device includes the DC/DC controller, power switches, power inductor, compensation and a modest amount of input and output capacitance in a surface mount package.
The current limit is adjustable by applying a voltage or resistor divider and can be automatically decreased with rising junction or ambient temperature using a thermistor to prevent the regulator or load from overheating.
The LTM8026 operates from an input voltage between 6 V and 36 V, and regulates an output voltage from 1,2 V to 24 V set by a single resistor. In a 12 V to 3,3 V output application, the IC achieves an operating efficiency of 89% at 2 A.
For noise-sensitive applications, the regulator can be synchronised to an external clock frequency in the range of 100 kHz to 1 MHz. Additional features include externally adjustable soft start, adjustable switching frequency and thermal shutdown.
The device is packaged in a thermally efficient 11,25 x 15 x 2,82 mm LGA package. Two temperature grades, E and I, covering the -40°C to +125°C temperature range, are available.
The role of bidirectional charging in the evolving energy landscape Avnet Silica
Power Electronics / Power Management
As reliance on renewable sources like wind and solar continues to grow, the need for efficient energy flow and storage solutions has become more critical than ever.
Read more...RF agile transceiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.
Read more...How to calculate a buck converter’s inductance
Power Electronics / Power Management
In the buck circuit, the inductor design is a key element that is closely related to system efficiency, the output voltage ripple, and loop stability.
Read more...SmartRAID 4300 Series Altron Arrow
DSP, Micros & Memory
Microchip’s disaggregated architecture leverages host CPU and PCIe infrastructure to overcome traditional storage bottlenecks in scalable, secure NVMe RAID storage solutions.
Read more...High-current EMI filters Accutronics
Power Electronics / Power Management
TDK has introduced 20 and 40 A, 80 V DC board-mount EMI filters, reducing differential mode conducted emissions for switching power supplies with high input current requirements.
Read more...Isolated SMD DC-DC converters iCorp Technologies
Power Electronics / Power Management
MinMax has launched a series of isolated SMD DC-DC converters, the MSU01 series delivering 1 W, while the MSU02 series offers 2 W output.
Read more...The evolution of 4D imaging radar Altron Arrow
Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.
Read more...Bluetooth wireless SoC Altron Arrow
Telecoms, Datacoms, Wireless, IoT
he EFR32BG29 wireless SoC from Silicon Labs is a highly efficient, high memory, low-power, and ultra compact SoC designed for secure and high-performance wireless networking for IoT devices.
Read more...Next-gen power meter Electrocomp Express
Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.
Read more...Wi-Fi 6 and Bluetooth LE co-processor Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released its ST67W611M1, a low-power Wi-Fi 6 and Bluetooth LE combo co-processor module.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version