AnalogicTech has introduced a new family of high-voltage, high-current, non-synchronous step-down converters capable of providing high-efficiency power conversion from 24 V supplies. These new devices offer cost savings for wireless LAN, DSL and cable modem, and set-top box designs by integrating a buck converter with a low-noise low dropout regulator (LDO).
By supporting input voltages up to 24 V and combining a highly efficient nonsynchronous buck converter with an LDO optimised for noise-sensitive applications, this new family of products offers designers of LAN equipment operating off a low-cost 12 V adapter an opportunity to boost efficiency while reducing product footprint.
Operating from an input voltage between 6 V and 24 V, the AAT1189 is targeted at consumer electronics equipment operating from a low cost AC-DC adapter. It delivers up to 2,5 A output current and its 490 kHz switching frequency allows designers to use small filtering components and keep total solution size small. The use of voltage mode control helps optimise performance across the entire load range.
The AAT2687 and AAT2689 combine a high-voltage step-down converter with an LDO regulator. The buck converters on both devices operate off a 6 V to 24 V input and deliver a VOUT of 1,5 V to 5,5 V. The buck converter on the AAT2689 delivers up to 2,5 A, while the one on the AAT2687 supplies up to 4,5 A. The integrated LDO is capable of delivering 600 mA and offers low output noise, low quiescent current and excellent transient response. Separate enable pins allow the designer to independently control the buck converter and the LDO. Shutdown current is less than 15 μA.
All three devices in the product family feature internal soft start, over-temperature protection and adjustable over-current protection. They are qualified across the -40°C to +85°C temperature range. The AAT1189 and AAT2689 are available in a lead-free, 16-pin, 3 x 4 mm TDFN package, while the AAT2687 comes in a lead-free, 24-pin, 4 x 5 mm TQFN package.
High-precision current transducer
Power Electronics / Power Management
Danisense announces its new high-precision DP12IP current transducer designed for isolated DC and AC current measurement in demanding PCB-mounted power electronics applications.
Read more...Secure holder for protected 18650 batteries
Power Electronics / Power Management
Designed for protected 18650 batteries up to 70 mm long, the holder offers secure retention for portable, industrial, and embedded applications.
Read more...More room to scale Altron Arrow
Power Electronics / Power Management
With the latest STM32H5 lines from STMicroelectronics, you can now scale within the same platform, from a compact 1 Mbyte device to higher-memory MCUs for graphics-rich and feature-heavy designs.
Read more...Surface mount power amplifier for high-power applications RF Design
Power Electronics / Power Management
The GNA-63-5W+, from Mini-Circuits, is a GaN MMIC Power Amplifier (PA) designed for demanding RF applications requiring high efficiency, excellent linearity, and a compact footprint.
Read more...1200 V QSiC modules
Power Electronics / Power Management
SemiQ Inc has launched the QSiC Dual3, a family of 1200 V half-bridge MOSFET modules for motor drives in data centre cooling systems, grid converters in energy storage systems, and industrial drivers.
Read more...Expanded range of high-thermal-performance QSiC modules
Power Electronics / Power Management
SemiQ’s half-bridge series for data centre power converters and industrial motor drives features low RDSON SiC MOSFETs and parallel SBD diodes for best-in-class power density and conversion efficiency.
Read more...Transporting lithium batteries and IoT devices
Power Electronics / Power Management
With billions of rechargeable and non-rechargeable lithium cells and batteries powering most of the world’s consumer and industrial electronic devices, shipping them to customers through vast global logistics chains is often an overlooked topic.
Read more...Setting a new benchmark for high-power DC load testing Conical Technologies
Test & Measurement Power Electronics / Power Management
The new ITECH IT8900G/L high-speed, high-power DC electronic load offers a powerful combination of speed, scalability, precision and high-power density.
Read more...Quality batteries are critical for IIoT Uniross Batteries
Power Electronics / Power Management
Batteries intended for use in industrial operations must indeed offer complete reliability under extreme environmental conditions, resistance to vibration and harsh environments.
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