Linear Technology has débuted the LTM4620, a dual 13 A per output or single 26 A output DC/DC μModule step-down regulator that delivers up to 100 A when four devices are current shared. The device is a complete DC/DC regulator system in a 15 x 15 x 4,41 mm LGA package, including inductors, power stages and all control circuits.
For optimum heat dissipation, a patented top-side heatsink removes heat quickly and evenly. With 200 LFM air flow, 12 VIN to 1,0 VOUT and full load of 26 A (or 13 A per output), the IC’s internal temperature rises only 60°C above ambient. With the addition of an external heatsink to the top of the package and 200 LFM air flow, the temperature rise is only 40°C.
The LTM4620 is designed to convert 5 V to 12 V inputs to high-power, low-voltage point-of-load system rails such as 2,5 V to as low as 0,6 V. An accurate reference and an internal remote sense amplifier guarantee ±1,5% accurate output regulation over line, load and temperature. Sensing the voltage at the load compensates for voltage drops caused by PCB trace impedance.
Applications include mezzanine boards such as ATCA and microTCA systems, point-of-load regulation for advanced processors, ASICs and recently introduced 28 nm FPGAs as well as high-speed SERDES.
The device features fast short-circuit protection where a current foldback technique reduces IOUT to a minimum, preventing the regulator from overheating while protecting the load as well as the upstream power supply. Once the short-circuit condition is removed, the LTM4620 resumes operation.
The two outputs of the LTM4620 operate at 180° out of phase to minimise output ripple (when outputs share current) and input ripple, resulting in the use of fewer and smaller capacitors. For a 100 A design, four ICs accurately current share and operate at 90° out of phase.
Adaptive optics’ power solution Altron Arrow
Opto-Electronics
Vicor power-dense adaptive optical modules enable colossal telescopes to look into the past for deep space discoveries.
Read more...Reliable power solution Conical Technologies
Power Electronics / Power Management
The Mibbo MLD-120W-xxVx is a robust DIN-rail mounted DC-DC converter with a 120 W output capacity specifically designed for industrial and automation applications.
Read more...Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.
Read more...Wide input voltage buck-boost converter Altron Arrow
Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.
Read more...High-performance processor for edge-AI Altron Arrow
DSP, Micros & Memory
The STM32MP23 microprocessor from STMicroelectronics is the latest addition to the STM32MP2 series, designed to meet the demands of industrial, IoT, and edge AI applications.
Read more...Development kit for TI’s SN6507
Power Electronics / Power Management
This comprehensive solution is designed to help engineers evaluate the performance of TI’s SN6507 transformer driver for isolated power supplies.
Read more...6 GHz power amplifier Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Analog Devices’ ADPA1116 is a 0,3 to 6 GHz GaN-based power amplifier with a saturated output power (POUT) of 39,5 dBm.
Read more...STM releases innovative GNSS receiver Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics recently introduced the Teseo VI family of global navigation satellite system receivers aimed at high-volume precise positioning use cases.
printer friendly version