austriamicrosystems has launched the AS1332-34 family of step-down DC-DC regulators optimised for noise sensitive RF power amplifiers in single cell Li-Ion battery powered applications.
The three devices in the family deliver up to 650 mA from an input voltage range of 2,7 to 5,5 V. The AS1332 is optimised for low power RF amplifiers where the output power is dynamically scaled by the supply voltage to improve battery lifetime. An external analog reference voltage is applied to the Vcon input, upon which the output voltage follows the reference voltage within a period of 20 μs (multiplied by an internal gain of 2,5), varying the output between 1,3 and 3,16 V. The output voltage of the AS1333 is fixed at 3,09 V whereas the AS1334 is available in 1,2, 1,5, 1,8, 2,5, 3,0 and 3,3 V output voltage versions.
The devices are designed for minimal space requirements in size-restricted battery-powered applications and is ideally suited for portable wireless end equipment. The 2 MHz fixed switching frequency minimises PCB footprint by allowing the use of tiny, low profile inductors and capacitors. This constant frequency switching, together with internal noise reduction circuitry, results in an output voltage ripple of less than 2 mV peak-to-peak.
With 97% peak and 94% average efficiency the new buck converter family enhances battery lifetime in any application. Moreover, if no supply is required, the devices offer a shutdown mode requiring only 100 nA current combined with an output disconnect feature. Additional features are soft start and power-ok, available on the AS1334. Safety features include current overload and thermal shutdown protection.
The AS1332 and AS1333 are available in the tiny WL-CSP 8-bump while the AS1334 comes in a TDFN(3 x 3)-10 package covering the temperature range of
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...Secure, low-power Bluetooth LE SoC NuVision Electronics
Telecoms, Datacoms, Wireless, IoT
Silicon Labs unveils BG2B, its lowest-power Bluetooth LE SoC with industry-leading power efficiency, security, and integration.
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.
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