Power ICs
UBA2028 - NXP IC Transforms Energy-Saving Lamps With Deep Dimming and Quick Warm-up Capabilities
NXP Semiconductors today announced the availability of the UBA2028, a fully integrated high-voltage power IC that drives dimmable Compact Fluorescent Lamps. The UBA2028 enables lighting manufacturers to create high-quality CFLs that rival incandescent bulbs, with quick warm-up and unprecedented dimming capabilities down to 10 percent of full light intensity. The latest NXP CFL driver IC features the highest level of integration available on the market today, enabling more compact designs, highly efficient power conversion, and extended CFL lifetimes beyond 15,000 hours.
IR3522 and IR3506 - IR Introduces High Efficiency Solution to Power DDR3 Memory Modules
International Rectifier today introduced the IR3522 and IR3506 XPhase chipset that provides a complete power solution for DDR3 multiphase memory applications.
AUIR2085S - IR's Self-oscillating Half-bridge Driver IC Reduces Footprint for Space Constrained Automotive Applications
International Rectifier introduces the AUIR2085S automotive-qualified control IC for low- mid- and high-voltage automotive drive applications including DC-DC converters, HEV auxiliary converters and battery management converters.
IR3527-IR Introduces Next-generation XPhase Dual Phase IC with Independent Power Savings Function for Multiphase Applications
International Rectifier introduces the IR3527 XPhase dual phase IC with independent power savings function for energy-efficient multiphase server applications.
LTC3631 - 45V, 100mA Synchronous Buck Converter with Only 12uA Quiescent Current
Linear Technology has announced the LTC3631, a 45V input-capable synchronous buck converter that can deliver up to 100mA of continuous output current. It operates from an input voltage range of 4.5V to 45V with transient protection up to 60V, making it ideal for automotive and industrial control loop applications. The LTC3631 utilizes internal synchronous rectification and a programmable peak current mode design to optimize efficiency in lower current applications. It delivers efficiencies as high as 92% and requires only 12uA of quiescent current, maximizing battery run time. Its 3mm x 3mm DFN package (or MSOP-8E) and only three tiny externals provide a highly compact solution footprint for a wide array of general purpose applications.
Low-Loss 1200V IGBT Series from STMicroelectronics Reduces Energy Use in Everyday Motor Drives
A new series of power transistors from STMicroelectronics reduces the environmental impact of daily-use equipment such as home appliances, HVAC systems, and industrial machines by minimizing the two major sources of energy loss in motor-control circuits. The STGW30N120KD and the STGW40N120KD are Insulated Gate Bipolar Transistors (IGBTs) that have low energy loss when conducting, like an ordinary IGBT, and also reduce losses while switching.
TI - 800-mA, 30V linear battery chargers with automatic USB detection
Texas Instruments has introduced two families of 800-mA USB battery chargers with automatic USB detection for single-cell, lithium-ion (Li-Ion) battery-powered electronics. The bq2404x and bq2405x battery charger integrated circuits have a high input-voltage range of up to 30 V, and 6.6-V overvoltage protection to support handheld devices, from entry-level feature phones to smartphones, and other low-power handheld devices, that may use low-cost adapters.
Atmel - Safe Battery Management Solution for Automotive and Industrial High-cell-count Li-Ion Battery Packs
Atmel has announced the availability of a new Li-Ion battery management chipset for high-cell-count automotive and industrial applications such as electrical/hybrid vehicles, e-bikes or uninterruptible power supplies. Atmel is currently the only supplier to provide a complete two-chip protection solution including all necessary functionalities with the highest safety level.
CISSOID Introduces high temperature PWM controller for DC-DC converters and SMPS
CISSOID, a leader in high temperature semiconductor solutions, has unveiled MAGMA, a PWM controller that operates reliably over the full temperature range [-55°C to +225°C]. MAGMA targets DC-DC converters and Switching Mode Power Supplies, where it brings maximum efficiency above 90% throughout the whole temperature range.
Voltage Supervisors from Torex with External Delay Function
The new XC6118 and XC6119 are 0.8µA low-power consumption supervisors that enable a delay time to be set up externally by connecting only a single capacitor to the ICs delay capacitor pin. In addition, the XC6118 also has a sense pin (VSEN) to monitor a separate power supply.
SMB211-Summit Introduces 10A Synchronous DC/DC Controller with Digital Power Control in Tiny Packages
Summit Microelectronics has expanded its family of Programmable Power Manager integrated circuits with the SMB211 single-channel, synchronous DC/DC controller. The SMB211 continues Summit's innovative approach to power supply design by combining flexibility, features and performance with ease-of-use. With a serial digital interface, the SMB211 can be easily configured during development (on-board, non-volatile memory) and re-programmed in system by host software. The result is a high-performance digitally controlled power supply design that is easily customizable without tedious hardware design cycles or complex microcontroller-style software coding.
Texas Instruments - 200-mA linear regulators with auto low-power mode
Texas Instruments has introduced a family of 200-mA, low dropout regulators (LDOs), which offer an auto low-power mode that combines ultra-low quiescent current of less than 8 uA with fast transient response while maintaining low noise and a high power supply rejection ratio (PSRR). With 70 percent lower quiescent current than existing solutions, the new LDOs help increase battery runtime without sacrificing performance in noise-sensitive applications, such as smart phones, MP3 players, RF modules, remote controls, ZigBee network systems and handheld consumer devices.
Fairchild Semiconductor - Boost Switch Delivers High Efficiency in High-Frequency Step-Up DC-DC Designs
Fairchild Semiconductor brings designers of cell phones, medical, portable and consumer applications a boost switch that provides high efficiency in boost conversion circuits. The FDFME3N311ZT combines a 30V integrated N-Channel PowerTrench MOSFET and Schottky diode for exceptionally low input capacitance (55pF typical) and total gate charge (1nC) to improve efficiency in DC-DC boost designs. Designed with Fairchild's proprietary PowerTrench process technology, it delivers low switching losses through the careful optimization of dynamic characteristics.
Low-Noise GaAs HEMT for 12 – 20GHz range
Mitsubishi has introduced the MGF4921AM, a low noise GaAs HEMT (High Electron Mobility Transistor) that is highly suitable for low noise amplifiers in satellite digital radio receivers as well as in DBS (direct broadcast satellite) receivers operating in the C band. The new device works from S to C bands with a typical noise figure of just 0.35dB at 2.4 or 4GHz, which is at the leading edge of the industry. At 2.4GHz it provides a gain of 18.0dB.
MBI6901 - Macroblock Presents Step-Down and High Efficiency AC - DC LED Controller for LED Lighting Replacement
Macroblock introduces a step-down, non-isolated, and high efficiency AC - DC controller, MBI6901, that can deliver constant current to light up high brightness LED and stabilize the LED lighting system. The MBI6901 is able to drive external MOSFET current up to 3A for T-8 CFL replacement, general illumination and power supply for light panel. The MBI6901 accepts universal AC input from 80VAC to 265VAC and regulates the accuracy of preset output current within ±5% by switching the external MOSFET.
NP-MC series - ON Semiconductor Launches New Series of Thyristor Surge Protection Devices to Provide Overvoltage Protection with Minimal Signal Distortion
ON Semiconductor has introduced the NP-MC series - a new family of ultra-low capacitance Thyristor Surge Protection Devices that provide protection to sensitive electronic equipment from transient overvoltage conditions. With capacitance values 40 to 50 percent lower than existing products on the market, the NP-MC devices provide protection with minimal signal distortion in high-speed xDSL, T1/E1 and other broadband data transmission equipment.
MAX17100: Highly Integrated PMIC Provides Small, Low-Cost Solution for LCD Panels
Maxim Integrated Products introduces the MAX17100, an integrated PMIC for gate-in-panel (GIP) LCD monitors. Developed using Maxim's proprietary, high-voltage BiCMOS process, this PMIC fulfills all the power requirements for GIP-based LCD monitor panels by integrating a boost regulator, three high-current operational amplifiers, a VCOM calibrator, linear regulators for gate-on and gate-off supplies, and a 6-channel level shifter. Designed to enable slimmer monitor form factors, the MAX17100 provides a cost-competitive solution for powering the source drivers, gate drivers, and VCOM backplane in LCD monitor panels.
AP731x and AP733x - Low drop out regulators from Diodes Incorporated improve system stability and transient response
Diodes Incorporated has introduced a range of low drop out linear regulators designed to drive low ESR 1µF MLCC capacitors in order to reduce system-level manufacturing cost and improve control loop stability and transient response.
Vishay - Low-Profile, High-Current Inductors in 6767 Case Size
Vishay has launched a new IHLP low-profile, high-current inductor in the 6767 case size, featuring a 17.15-mm by 17.15-mm footprint and 7.0-mm profile. The IHLP-6767GZ-11 offers currents up to 75.5 A and standard inductance values from 0.33 µH through 100 µH, the industry's highest for a composite surface-mount inductor.
Single-Phase Step Down Controller for NVIDIA GPUs
Maxim has introduced the MAX17409, a single-phase step-down controller for powering NVIDIA GPUs. Its active voltage positioning dynamically lowers the output voltage in response to the load current, reducing output capacitance requirements and power dissipation. The load current is sensed at the MAX17409's output to minimize noise sensitivity, and can be sensed using a current-sense resistor or the DC resistance of the inductor.
Microprocessor Supervisory Circuits Reduce Power Requirements For Portable Consumer, Communications And Industrial Appliances
Analog Devices has expanded its portfolio of supervisory ICs with new microprocessor supervisory circuits for monitoring under-voltage conditions in handheld industrial instruments, telecommunications devices, and other portable applications. The ADM6326, ADM6328, ADM6346 and ADM6348 supervisory circuits feature an ultra-low 500-nA supply current that can extend the battery life of mobile devices.
Linear Regulator with Reset for Always-On Automotive Applications
Maxim Integrated Products has introduced the MAX16910, an ultra-low quiescent current, high-voltage linear regulator with a reset output. This 200mA linear regulator consumes only 20microamps (typ) of quiescent current to conserve battery life in always-on automotive applications. Designed for automotive environments using Maxim's robust BiCMOS process, the MAX16910 is capable of operating from a wide, 3.5V to 30V input-voltage range to withstand cold-crank and double-battery conditions; it can also operate during load-dump conditions up to 45V. Additionally, the integrated open-drain reset output with adjustable delay eliminates the need for an external reset IC. Thus, the MAX16910 is ideal for always-on automotive applications in which small solution size and power efficiency are critical.
Advanced Analogic Technologies Introduces Lowest-Power Load Switch Available for Biometric Security Devices
Advanced Analogic Technologies has introduced the AAT4702, a highly integrated load switch that requires half the board footprint of discrete alternatives. In addition to its small size, the AAT4702 consumes a 15 micro-A quiescent current, far less than any other integrated load switch/low-dropout (LDO) regulator on the market.
30V MOSFET in Power 56 Package is First to Break the 1mOhm MAX RDS(ON) Barrier says Fairchild
Fairchild Semiconductor brings designers of servers, blade servers and routers the industry's first sub-one mOhm 30V MOSFET in a Power 56 package. This 30V MOSFET, the FDMS7650, functions as a load switch or an ORing FET. In server farms, these ORing FETs are used when many power supplies are arranged in parallel to share the load.
600-V PFC High-Frequency Rectifier With 11-ns Reverse Recovery Time and Low Forward Voltage Drop of 2.1 V
Vishay Intertechnology, Inc. today launched a new 600-V FRED Pt Hyperfast tandem rectifier that reduces losses in high-efficiency continuous current mode (CCM) power factor correction (PFC) applications with its extremely fast reverse recovery time, low forward voltage drop, and low package thermal resistance.
IR Introduces Benchmark Industrial-Grade 30V MOSFETs
International Rectifier has released a series of industrial-qualified 30V TO-220 HEXFET power MOSFETs with extremely low gate charge (Qg) for applications including Uninterruptable Power Supply (UPS) inverters, low voltage power tools, ORing applications and netcom and server power supplies.
Power MOSFET with Industry-First 6.1 Milliohms On-Resistance in SO-8 Size Package
A power MOSFET with what is claimed to be the industry's lowest on-resistance for a 60-V device in a package with double-sided cooling was released today by Vishay. The new SiE876DF, which comes in an SO-8 sized PolarPAK package, boasts maximum on-resistance of 6.1 milliohms at a 10-V gate drive, a 13 % improvement over the next best comparable device on the market.
Fairchild Semiconductor - Super-Junction MOSFETs
Fairchild Semiconductor brings designers of power supplies, lighting, display and industrial applications a new generation of 600V Super-Junction MOSFETs -SupreMOS. The combination of their low RDS(ON) and total gate charge brings a 40 percent lower Figure of Merit (FOM) compared to Fairchild's 600V SuperFET MOSFETs.
Semtech Extends Buck Regulator Platform with 1A, 1.5A and 2A Devices
Semtech has announced three new small form-factor buck DC-DC regulators that provide a compact, high-efficiency solution to demanding point of load applications in a wide range of printer, networking, medical and other systems. The SC4626, SC189 and SC183 are small form factor products that deliver 1 A, 1.5 A and 2 A of load current, respectively, with excellent transient response.
Dual-output regulator IC combines switching and linear regulation
The new A4402 from Allegro MicroSystems Europe is a new dual output regulator IC that integrates a buck switching regulator and a linear regulator to provide dual output voltages such as those required by microcontrollers or DSP-based applications.
National Semiconductor - White LED Driver with Dynamic Backlight Control Reduces Power Consumption of Portable Displays up to 55 Percent
National Semiconductor has introduced what it says is the industry's smallest white light-emitting diode (LED) driver with dynamic display backlight control. The LM3530, a member of National's PowerWise energy-efficient product family, drives up to 11 high-current LEDs in series, illuminating larger displays in portable media devices such as smartphones. The LM3530 is offered in a 12-bump micro SMD package measuring just 1.615 mm × 1.215 mm × 0.425 mm.
N-Channel Power MOSFETs in SC-75 Package Offers 8V to 30V VDS Range
Vishay has expanded its family of n-channel TrenchFET power MOSFETs in the thermally enhanced PowerPAK SC-75 package to offer a VDS range from 8 V to 30 V. The devices released today include the industry's first 30-V device in the 1.6-mm by 1.6-mm footprint area, and a 20-V MOSFET with the industry's lowest on-resistance.
28V Dual-/Single-Input Battery Chargers with Battery Detection and Overvoltage-Protected Outputs
Maxim has introduced the MAX8844/MAX8845 28V, dual-/single-input, linear Li+ battery chargers with battery detection and overvoltage-protected outputs. These devices enhance flexibility by providing resistor-adjustable fast-charge and top-off current thresholds. To further increase flexibility, an autobooting assistant circuit distinguishes input sources and battery connection, and also provides an enable signal for system booting. The MAX8844/MAX8845 are ideal for space-constrained applications such as cell phones and smartphones.
Fairchild Semiconductor - 20V P-Channel MOSFET in 1mm x 1mm WL-CSP
Fairchild Semiconductor brings designers of cell phones, medical, portable and consumer applications the industry's lowest RDS(ON) (75mΩ at -4.5V) 20V P-Channel MOSFET in a 1mm x 1mm WL-CSP package. The FDZ371PZ is designed with Fairchild's proprietary PowerTrench process technology. This technology yields an exceptionally low RDS(ON), minimizing conduction losses. Through these lower losses, the FDZ371PZ improves efficiency and extends battery life for portable designs. It also provides robust ESD protection of 4.4kV to protect against adverse ESD events.
150V and 200V MOSFETs feature very low gate charge for industrial applications
International Rectifier has launched a series of 150V and 200V HEXFET power MOSFETs with ultra low gate charge (Qg) for industrial applications including Switch Mode Power Supplies (SMPS), uninterruptable power supplies (UPS), inverters and DC motor drives.
Monolithic Power MOSFET and Schottky Diode Achieves 3 Milliohms On-Resistance in SO-8
Vishay Intertechnology has released the first of its monolithic MOSFET and Schottky SkyFET products to use the company's latest TrenchFET technology. Using TrenchFET Gen III silicon, the new Si4628DY delivers the lowest on-resistance ever for a device of its type in the SO-8 package, with a maximum rDS(on) of 3 milliohms at a 10-V gate drive and 3.8 milliohms at 4.5 V.
Taiyo Yuden - Power Inductor for LED Flash DC-DC Converters
TAIYO YUDEN has announces the compact, high-performance NRV3012 , a new 3 mm x 3 mm x 1.2 mm height (max) wire-wound power inductor for LED flash DC-DC converter applications in camera-equipped cell phones and other portable electronic devices. The NRV3012 claims the industry's best DC bias characteristics of any power inductor in its size class. The device's 1.8 A rated current (based on DC saturation) represents a 60 percent improvement over the company's previous 1.1 A maximum rated current. Moreover, the NRV3012 reduces device surface area by 40 percent compared to previous 4-mm-square wire-wound power inductors with equivalent DC bias performance.
NEW High I/O Isolation (6000VDC) Surface Mount and DIP16
New, low power, DC-DC converters for high isolation voltage applications. The new series AM2B-NZ(DIP16) and the new models to the existing series AM2L-NZ(SMD) feature I/O isolation of 6000VDC or the equivalent of 3000VAC isolation for AC applications.
Highly Integrated Step-Down DC-to-DC Synchronous Regulator with Internal Compensation Simplifies Point-of-Load Power Design
Analog Devices, Inc. today introduced the ADP2118 dc-to-dc switching regulator, the latest in its portfolio of integrated power management switching regulators. The new highly integrated 3A, step down dc-to-dc synchronous regulator includes low on-resistance switching FETs (field effect transistors) to maximize efficiency and features internal loop compensation, Power Good indicator, precision enable, tracking, and synchronization to simplify design of point-of-load power systems. The ADP2118 is designed to support high performance signal chain loads in applications ranging from medical devices to communications infrastructure equipment where the signal chain may include ADCs (analog to digital converters), DACs (digital-to-analog converters), precision amplifiers and other high-performance, submicron ICs such as DSPs (digital signal processors) and FPGAs (field programmable gate arrays).
New Planar Technology transformer for Avionics
Planar transformers have been used more and more as a high efficiency low profile transformer solution in many sectors such as telecommunication, medical equipments, automotive, industrial, avionics, etc., presents many advantages against standard technology: reduced size, high power handling, low losses, high reliability, low leakage inductance, high repetitively, etc.
