.gif)
.gif)
New Products
October 23, 2012
Renesas Electronics Releases New Power Supply ICs
Renesas Electronics Corporation announced the release of the RAA23021X Series of two output channel power supply ICs that provide functions such as stepping down the voltage supplied to a microcontroller (MCU) and its peripheral devices (e.g. from 5.0 V to 3.3 V) and controlling the power supply in standby mode. These products were optimized for use in industrial, office automation, consumer, and network equipment. Recently, the demands for miniaturization and lower power consumption in electronic equipment have been increasing.
Recommended: Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
However, system manufacturers often construct the necessary power rails from single-output voltage regulator ICs and electronic components and thus find it difficult to achieve the required miniaturization. Furthermore, even though MCU standby mode and low power modes are an effective method to reduce and align power requirements to frequently changing system requirements, generally the power supply system hasn't been designed to also provide this support. Therefore Renesas is now releasing the RAA23021X Series of power supply ICs that both reduce MCU power supply system parts counts and also significantly reduce standby mode power consumption.
Key Features
Related: Amorphous and Tape-Wound Cores, SMD Capacitors and Rugged Connectors at PCIM
(1) Power supply system miniaturization and lower costs achieved by integration of a switching regulator and a Low-Drop-Out regulator (LDO) in the same package
These new products integrate, in a single package, the step-down switching regulator and LDO required in a step-down circuit as well as phase compensation components, and discharge circuits. As a result, compared to earlier Renesas products, the number of components in a MCU power supply system can be reduced by 50 percent, thus allowing significant cost reductions and miniaturization in application systems.
Opinion: Maximising Synergies between Power Electronics and ICT for improving Energy Efficiency
(2) Substantial power reductions in standby mode
These new products provide an ultralow power consumption mode that reduces their own power consumption to 25 µA during standby power saving states such as the deep software standby mode provided by Renesas MCUs. This allows total power consumption during standby mode for the MCU and power supply IC system to be reduced by over 90% compared to similar systems using earlier Renesas products.
(3) Improved usability with on-chip sequencing function and protection functions
These new products allow one of three pattern sequences to be selected easily with pin settings to support configurations of power-on sequence of the devices used in the application system. In addition, these products provide various protection circuits, including overcurrent protection, thermal protection, and low-voltage malfunction protection functions. Thus high-reliability power supply systems can be constructed easily with a minimum number of external components.
(4) Extensive set of development tools available
To support the development of system power supply designs, Renesas provides not only evaluation boards for these new products independently, but also evaluation boards that include both these new products and Renesas MCUs. Renesas also provides a variety of information on the Renesas web site, including circuit diagrams, product recommendations, and board patterns. Users can easily acquire information such as previous evaluations that combine an MCU with these products and board patterns, which can result in significantly shorter evaluation and development periods.
RAA23021X Series consists of four products with fixed output voltages (1.8, 2.7, 3.0, and 3.3 V) and one with a variable output voltage for a total of five products. The maximum output current for the switching regulator is 3 A and that for the LDO is 0.5 A so that these products can provide power supply to an MCU as well as its peripheral devices. These products are provided in a high thermal dissipation 20-pin HTSSOP package. The die pad, which takes up most of the rear surface of the package, allows high thermal dissipation mounting.
In addition to this series, Renesas is currently developing the RAA23022X Series, which integrates functions for switching over to battery backup if power fails. Renesas is committed to expanding this product line, including products with 4 output channels.
Pricing and Availability
Samples of the RAA23021X Series of power supply ICs are scheduled to be available now, priced at US$0.95 per unit. Mass production of the RAA23021X Series is scheduled to begin in February 2013 and is expected to reach a scale of 1,000,000 units per month in October 2013.
Samples of the RAA23022X Series of power supply ICs are scheduled to be available on December 2012.
Share this story
Send via E-mail
Post to Twitter
On the Web:
White Papers
March 11, 2013
Power Modules for Charger Applications
Sponsored by Vincotech
February 27, 2013
The Adaptive Cell Converter Topology Enables Constant Efficiency Over Universal Input AC Line in Front-End, High-Density Power Factor Correction Applications
Sponsored by Vicor Corp.
February 27, 2013
From 48 V direct to Intel VR12.0: Saving "Big Data" $500,000 per datacenter, per year
Sponsored by Vicor Corp.
More White Papers
- DOE Selects Consortium to Develop Next-Generation Batteries for Automobiles
- Bosch Claims First Sub-$450 240V EV Charging Station
- Dana Receives Grant from NRCan to Improve Thermal Management for EV Battery Packs
- Altera Acquires Enpirion for $140 Million, Forms Power Business Unit
- Ericsson Saves Board Space with Surface-Mount Digital Bus Converter
- SiC and GaN Again a Major Focus at PCIM Europe
- SiC Modules, IGBTs and Super-Junction MOSFETs Introduced on Day One of PCIM
- PowerbyProxi Joins Wireless Power Consortium
- Vincotech and Infineon Introduce New Packaging Options at PCIM Europe
- Eaton and CA Technologies Join to Deliver Infrastructure Management for Data Centers
- Renesas Adds IGBT Drivers with Micro-Isolator for Electric and Hybrid Vehicle Inverters
- European Project Reports Achievements in Drive to Shape the Future of Power Microelectronics
- Bosch Claims First Sub-$450 240V EV Charging Station
- Alpha and Omega Expands Family of EZBuck Regulators Featuring Constant On-Time Control
- Vicor Reports Reduced Q1 Results – Anticipates a Brighter Future
- Eltek's New Rectifier Delivers 97.2% Efficiency for Data Center and Server Powering
- ROHM Claims New Hybrid MOS Combines the Best Characteristics of MOSFETs and IGBTs
- U.S. Launches Competition for "Next-Generation Power Electronics Manufacturing" Institute
- LG Chem Announces Plans for Start of Production of Automotive Li-Ion Batteries
- Europeans Establish Dueling Projects to Advance Power Electronics Technologies
- Green Building Power Forum 2010: Fujitsu Components America
- Darnell's Digital Power Forum 2009: CUI Incorporated
- Green Building Power Forum 2010: EMerge Alliance
- Green Building Power Forum 2010: Anderson Power Products
- Green Building Power Forum 2009: Independence Station
- Darnell's Digital Power Forum 2009: Coilcraft
- Darnell's Digital Power Forum 2009: Champs Technologies
- Darnell's Digital Power Forum 2009: EXAR Corporation
- Darnell's Digital Power Forum 2009: PMBus
- Darnell's Digital Power Forum 2009: Power Plaza
Design Features
October 22, 2012
Energy Efficiency with Class D Amplifier Modules
Class-D switching amplifiers are helping audio designers create personal multimedia devices and home audio/visual systems that demonstrate how compact and stylish equipment can also deliver high sound quality and high audio output power. The key to this breakthrough, providing freedom from the large and bulky boxes housing traditional audio products, lies in the class-D amplifier’s high energy efficiency, which is typically around 90%. This allows designers to reduce or eliminate heatsinks as well as using smaller-sized PCBs and smaller components such as transformers, connectors and power supplies.
Design Features
October 8, 2012
The Role of Hall Effect Sensors in Power Distribution Infrastructure
Power distribution units (PDUs) form an essential part of modern computing and data communications hardware. They provide multiple outputs for transferring electrical power with maximum efficiency, controlling the power capacity and safeguarding against the possible causes of supply interruption. With an ever increasing need from tech savvy consumers for higher data throughput and greater quantities of data storage capacity, as well as tough international legislation now governing CO&sub2; emissions, the demands being placed on these units are proving challenging for engineering teams to satisfy.
Product Focus
August 13, 2012
The Year in AC-DC Power Supply Technology
The past year witnessed significant new product releases, technological developments, and industry news related to the field of AC-DC Power Supply technology.