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Digital Power Controller Configures On The Fly

March 5, 2008 4:56 am | Analog Devices, Inc. | Product Releases | Comments

Intended for use in ac/dc and isolated dc/dc power circuits serving high-reliability apps such as server, storage, and telecomm systems, the ADP1043 digital PWM power control and management device allows engineers to monitor and configure system parameters using a graphic interface for power functions such as frequency, timing, voltage setting, and protection limits. Communicating in real time via I2C bus,

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2.4 GHz RF Transceiver for ZigBee/IEEE 802.15.4 and Proprietary Low-Power Wireless Applications

March 4, 2008 6:57 am | Product Releases | Comments

Texas Instruments introduced a second-generation ZigBee/IEEE 802.15.4 radio-frequency (RF) transceiver designed for the 2.4 GHz unlicensed ISM frequency band. Featuring desirable selectivity/co-existence and link budget, the CC2520 targets a variety of ZigBee/IEEE 802.15.4 and proprietary wireless systems used in

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Chipscale USB Power Manager Includes 1A Regulator

March 4, 2008 6:10 am | Product Releases | Comments

Able to manage multiple input sources such as a wall adapter or USB port and the Lithium battery while preferentially providing power to the system load, the LTC3566 from Linear Technology targets power management in Li-Ion/Polymer battery applications. The 4mm2 QFN-packaged device accepts an input of up to 5.5 V (7V transient) and integrates a switching PowerPath manager, a stand-alone battery charger, a 1A high efficiency synchronous buck-boost regulator, an ideal diode and controller

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Power Management IC Delivers Low Power Loss with Low EMI

February 28, 2008 4:08 am | International Rectifier | Product Releases | Comments

International Rectifier introduced the iP2005A. The device is optimized for very low EMI, eliminating the need for external snubber circuits in EMI-sensitive designs such as consumer game consoles. By eliminating external snubbers, it reduces per phase power loss by up to 2.3W compared to the previous generation device that required an external resistor and capacitor snubber with values of

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Precision Amplifiers with Low Voltage Offset Drift Over Temperature

February 25, 2008 9:01 am | Product Releases | Comments

National Semiconductor Corp. introduced a family of micropower precision amplifiers that provide guaranteed maximum offset voltage drift over temperature (TCVOS) as low as ±0.4 microvolts per degree Celsius (uV/°C). The LMP2231 single, LMP2232 dual and LMP2234 quad micropower op amps feature CMOS inputs, 1.6V to 5.5V operation, 10 uA of supply current per channel, low offset voltage of 150 uV and a wide temperature range of -40°C to 125°C.

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MCUs Operate Down To 0.9V Enable Portables to Derive Power from a Single-cell Battery

February 25, 2008 8:48 am | Product Releases | Comments

Silicon Laboratories introduced microcontrollers (MCUs) capable of operating down to 0.9V, enabling  portable devices to derive power from a single-cell battery. The C8051F9xx family’s 8-bit architecture with an integrated high-efficiency DC/DC boost converter, which can supply up to 65 mW of power for both internal MCU use and to drive other components, creates a

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Digital Power Controllers Integrate Active, Accurate Current Sharing

February 25, 2008 7:56 am | Product Releases | Comments

Zilker Labs introduced adaptive DC DC power controllers for maximizing efficiency in power constrained applications. The ZL2006 and ZL2004 –additions to the company’s Digital DC product family – ­include new proprietary algorithms that dynamically optimize efficiency as operating conditions change, with no

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Dual-Channel, Sink/Source Current DAC for Power-Supply Adjustments

February 21, 2008 5:58 am | Product Releases | Comments

Maxim Integrated Products introduced its DS4412 dual-channel, sink/source current DAC. This I2C-controlled, 4-bit current DAC features two output channels that are explicitly designed for power-supply margin testing and adjustment. Each output channel provides control of a DC/DC power supply by sinking or sourcing current directly into the power supply's feedback node.

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Chipset for AMD Parallel and Serial VID Processors

February 15, 2008 6:16 am | International Rectifier | Product Releases | Comments

International Rectifier introduced the IR3514 and IR3507 XPhase chipset for AMD parallel and serial VID (PVID and SVID) processors. The IR3514 control IC enables designers to migrate from AMD processors requiring a parallel VID to SVID processors without the need to change the motherboard. Combined with the IR3507 phase IC, the IR3514 provides Power Saving Interface (PSI) capability to

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2.2 MHz Synchronous Boost Regulator with Output Disconnect and LDO in a 3 mm x 3 mm QFN

February 15, 2008 5:39 am | Product Releases | Comments

Linear Technology Corporation announced the LTC3537, a 2.2 MHz, current mode synchronous boost DC/DC converter with integrated output disconnects plus an LDO. The devices's boost converter's internal 600 mA switches can deliver output voltages as high as 5.25V from an input voltage range of 0.68V at start-up (0.5V when running) to 5V, making it suitable for Li-Ion/Polymer or single/multicell alkaline/NiMH applications.

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LED Drivers Fuse a 3 mm x 4 mm Package for LED Requirements From 700 mA to 1.5A

February 13, 2008 5:42 am | Product Releases | Comments

The ZXLD132X Inductive DC/DC Converter Series from Zetex drives single or multiple LEDs with currents from 700 mA to 1.5A, in buck, boost and buck/boost configurations. The driver’s 3 mm × 4 mm DFN package is said to reduce the circuit footprint of existing designs by up to 50 percent. A variable “on/off” time-control scheme, with an adjustable peak switch current limit, makes chips simple to control. Both LED current and peak inductor current can be set accurately and independently.

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Voice Processor Based on Human Hearing System

February 11, 2008 5:06 am | Product Releases | Comments

Audience Semiconductor announced a voice processor based on the intelligence of the human hearing system and began sampling these chips to mobile handset manufacturers. By understanding the entire audio pathway - from the cochlea to the brainstem to the thalamus and cortex - the company can offer a

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Battery Fuel Gauge Family for Smart Phones and Mobile Internet Devices Features Integrated LDOs

January 30, 2008 4:47 am | Product Releases | Comments

Texas Instruments introduced two battery fuel gauge devices with integrated low-dropout regulators (LDOs) for smart phones, mobile internet devices and media players with embedded or removable batteries. The system-side and battery pack-side fuel gauges build on the company's line of integrated circuits (ICs) that predict battery life with

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Power Management ICs Help Maximize Battery Runtime, Minimize Heat

January 21, 2008 9:31 am | Product Releases | Comments

Linear Technology Corporation introduced its LTC3556 multi-function power management devices for Li-Ion/Polymer battery applications. It integrates a switching PowerPath manager, a stand-alone battery charger, ideal diode, I2C control, a synchronous buck-boost regulator, two synchronous buck regulators plus

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65 nm FPGA Family Adds Three Devices

January 21, 2008 7:59 am | Product Releases | Comments

Xilinx introduced three new devices and small form factor packaging to its 65nm Virtex-5 LX and LXT FPGA platforms. The addition of the Virtex-5 LX155 device to the logic-optimized LX platform, and the addition of the LX20T and LX155T devices plus a new small footprint 19 mm FF323 package to the Virtex-5 LXT platform with low

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