Power ICs
High-Voltage EL Lamp Driver with I2C Interface Provides Optimal Brightness and Reduces Noise
Maxim Integrated Products has introduced the MAX14521E, a ±15kV ESD-protected, quad-output driver for multiple electroluminescent (EL) lamps. This EL driver utilizes an inductor-based boost converter to generate a high 300Vp-p (max) voltage for maximum EL lamp brightness. A high-voltage, full-bridge output converts this high voltage to the AC waveform required to drive an EL lamp.
Atmel - Low Power Cryptographic Battery Authentication IC
Atmel has announced its AT88SA100S ultra low-cost, cryptographic battery authentication IC for mobile-phones, cameras, portable power tools, and other battery-powered applications. The AT88SA100S CrytpoAuthentication IC is the only battery authentication IC that uses a SHA-256 cryptographic engine and a 256-bit key that cannot be cracked using brute force methods. It is used to protect mobile phones, portable power tools, cameras, and other microcontroller-based products from counterfeit battery packs.
Fairchild Semiconductor - Dual MOSFET Delivers High Efficiency and Increases Power Density in Synchronous Buck Applications
Fairchild Semiconductor brings designers an industry- leading, dual MOSFET solution that delivers higher efficiency and power density for notebooks, netbooks, servers, telecom and other DC-DC designs. The FDMC8200 integrates an optimized control (high-side) and synchronous (low-side) 30V N-Channel MOSFET into one 3mm x 3mm MLP module – all designed with Fairchild's PowerTrench 7 MOSFET technology.
NXP Claims Breakthrough in MOSFET Performance with Sub 1 MilliOhm MOSFET in a Power S08 Package
NXP Semiconductors has announced an n-channel sub 1 milliOhm 25V MOSFET, PSMN1R2-25YL , boasting the lowest ever RDSon and best in class Figure of Merit. This is the lowest ever RDSon MOSFET in a Power-SO8 package (Loss Free package: LFPAK) and is an extension to NXP's existing MOSFET portfolio. The newest generation MOSFET combines the high performance Power-S08 LFPAK package with latest Trench 6 generation silicon and offers numerous performance and reliability advantages in a wide variety of demanding applications such as: power OR-ring, motor control and high efficiency synchronous buck-regulators.
Tiny, 1A/500mA LDO Regulators Operate from 1.425V to 3.6V and Dissipate Up to 1.9W at +70 Degrees Celsius
Maxim Integrated Products introduces the MAX15027-MAX15030 low-dropout linear regulators that operate from a 1.425V to 3.6V input voltage and deliver up to 1A (MAX15027/MAX15028) or 500mA (MAX15029/MAX15030) of output current. In addition, the MAX15028/MAX15030 feature a bias input that allows the devices to be powered from an independent supply, making them suitable for always-on power supplies in automotive applications. The bias input allows the regulator's input to reduce current to a mere 2microamps (max) during shutdown. This family of power-saving LDO regulators can dissipate up to 1.9W at +70 degrees Celsius and is ideal for a wide array of applications, including networking, storage, server, and telecom equipment.
Industry's Lowest Power Upstream Amplifier for DOCSIS 3.0
Maxim Integrated Products introduces the MAX3518, a DOCSIS(R) 3.0 upstream amplifier that combines the industry's lowest power consumption with optimal distortion performance. This device consumes a mere 1.25W when configured for 31dB of gain and +64dBmVout. Moreover, it consumes an ultra-low 25mW in transmit-disabled mode, while achieving a low, 10dB noise figure and 60dBc of harmonic distortion. The MAX3518's industry-low power consumption reduces power-supply requirements and extends battery life in battery-backup systems, thus making it ideal for cable and VoIP modems.
Fairchild Semiconductor's RF Power DC-DC Converter Provides Industry's Smallest Power Management Solution for W-CDMA/CDMA RFPAs in 3G Handsets
Fairchild Semiconductor provides the industry's smallest power management solution for the designers of 3G handsets and wireless datacards. The FAN5902, RF Power DC-to-DC converter, is packaged in a 12 bump, 0.5mm pitch CSP package and operates at 6MHz with a reduced size 0.5uH chip inductor, saving space and component costs.
Switch-Mode Charger Reduces Heat and Charge Time for Mobile Devices
Maxim has introduced the MAX8903A, a switch-mode DC-DC charger with Smart Power Selector(TM) circuitry. The charger employs a high switching frequency (4MHz, typ) to minimize heat and charge time, while allowing the use of tiny external components. To further reduce solution size, the 4mm x 4mm MAX8903A includes all power switches and current-sense circuitry required for charging and switching the load between battery and external power.
IR Introduces PWM Control IC for Energy-Efficient High Performance DC-DC Applications
International Rectifier has introduced the IR3640M PWM control IC for high performance synchronous DC-DC buck applications including servers, storage, netcom, game consoles and general-purpose DC-DC converters. The IR3640M is a single phase synchronous buck PWM controller with integrated MOSFET drivers and bootstrap diode. The device's single loop voltage mode architecture simplifies design while delivering precise output voltage regulation and fast transient response.
Fairchild Semiconductor - Switch Manages 30W of Output Power without a Heatsink
Fairchild Semiconductor can now provide designers of LCD monitors and TVs, set-top boxes and DVD players with a highly integrated FPS power switch in an 8-DIP package that can handle up to 30W of output power without a heat sink. Eliminating a heat sink allows LCD monitors to be slimmer and reduces the overall cost of the design.
Vishay Siliconix 30-V P-Channel TrenchFET Gen III Power MOSFET Sets New Industry First with 2.6-mΩ Maximum On-Resistance in SO-8 Footprint Area
Vishay Intertechnology, Inc. today released the industry's first 30-V p-channel power MOSFET in the SO-8 footprint area to boast maximum on-resistance down to 2.6 mΩ at a 10-V gate drive and 3.75 mΩ at 4.5 V. With these specifications, the new Vishay Siliconix Si7145DP, latest member of the TrenchFET Gen III p-channel family, achieves the lowest on-resistance ever for this voltage rating and footprint.
NEC introduces PowerMOSFETs with increased breakthrough voltage for NP-Series
NEC Electronics Europe has announced an expansion of its NP-Series of PowerMOSFETs. The two devices have a breakthrough voltage of 100V and complement the lineup of low-voltage PowerMOSFETs for automotive applications.
Low-Voltage Step-Down Regulator Saves Space in Compact Applications
Maxim has introduced the MAX17083, a low-voltage, step-down regulator with an internal boost switch. Designed for space-constrained applications, this device integrates dual n-channel MOSFET power switches in a small, 16mm2 TQFN package. Easily supporting a continuous load current up to 5A, the internal 25milliohm, low-side power MOSFETs ensure high efficiency while reducing component count.
Vishay Siliconix Releases Asymmetric Dual Power MOSFET in 6 by 3.7mm Package
Vishay has introduced the first device in a series of co-packaged, asymmetric power MOSFET pairs that reduces the space required for the high- and low-side power MOSFETs in dc-to-dc converters. The industry-first SiZ700DT in the new PowerPAIR package, which measures 6-mm by 3.7-mm, combines a low-side and high-side MOSFET in one compact device while still obtaining low on-resistance and high maximum current, saving space over using two discrete solutions. The height of PowerPAIR is 0.75 mm typical, or 28 % thinner than the PowerPAK 1212-8 and PowerPAK SO-8, which both have a 1.04-mm profile.
High-Temperature Sensitive TRIACs from STMicroelectronics
STMicroelectronics has introduced the first TRIACs with 10mA gate sensitivity to be specified for operation up to 150 degrees C without derating, enabling low-cost solutions for heaters, motors and other small appliances, through savings in heatsinks, and gate-drive power-supply and snubber circuitry.
Li-Ion Battery Linear Charger IC Has Constant-Current/Constant-Voltage Modes
Analogue power supply chip specialist Torex has unveiled the XC6802 Series of linear charger ICs for single cell lithium-ion batteries. Available in the ultra-small USP-6C package, as well as in standard SOT-25 and SOT-89-5 versions, the XC6802 includes a reference voltage source, battery voltage monitor, driver transistor, constant-current/constant-voltage charge circuit, over heat protection circuit, phase compensation circuit.
LED Backlight Driver Reduces Current Requirements Up To 50 Percent For Small Format Displays
Analog Devices has expanded its lighting management system product lineup with the new ADP8860 white LED (WLED) backlight driver – the first member of a new family of charge pump-configuration devices. Designed to operate with sister LMS products, such as the ADP5520 lighting management system and ADP5588 mobile I/O expander, the ADP8860 features ambient light sensing, a highly programmable register set, and sophisticated fading and dimming options that greatly reduce backlight power dissipation by up 50 percent.
Texas Instruments claims smallest 6A, 17V step-down DC/DC converter
Extending its family of easy-to-use SWIFT power management ICs, Texas Instruments has introduced waht it says is the industry's smallest single-chip, 6-A, 17-V step-down synchronous switcher with integrated FETs. The high-performance TPS54620 is 60 percent smaller than today's multi-chip converters, resulting in a complete 6-A power solution less than 195 mm2 -- one-fourth the size of a postage stamp.
Low Cost VSAT Power Amplifiers in 5x5 Surface Mount Package from Avago
Avago has announced a new pair of low cost surface mount (SMT) 2 and 4W power amplifiers for use in Ka band VSAT ground terminal applications. Avago's AMMP-6413/6415, which provide high linearity, are fully monolithic power amplifiers offered in a 5mm by 5 mm SMT package.
Dual MOSFET combi saves space without performance compromise
Diodes Incorporated has put a complementary pair of 100V enhancement mode MOSFETs into an SO8 package achieving the same performance of much larger individually packaged parts. The ZXMC10A816 is aimed at H-bridge circuits in DC fan and inverter circuits, Class D amplifier output stages and an array of other 48V applications.
Vishay’s IGBT and MOSFET Drivers Feature 32V Maximum Supply Voltage and 110 °C Maximum Operating Temperature Range
Vishay is broadening its optocoupler portfolio with the two new IGBT and MOSFET drivers. Released today, the 2.5A VO3120 and 0.5A VO3150A combine the widest operating voltage with high ambient operating temperature ranges and low power consumption to enable better thermal management and more flexible design choices for motor drives, induction stove tops, power supplies, and many other high-voltage applications.
Solid State Supplies offers Allegro's high efficiency LED driver in pre-production quantities
Allegro's A6210 high efficiency 3A, 2MHz step-down LED driver is now available in pre-production quantities from Solid State Supplies. The device is available in custom quantities on 7 and 13in mini-reels with a minimum order quantity (MOQ) of 500, increasing in 50 piece increments to meet customers' requirements.
100V High Speed Synchronous N-Channel MOSFET Driver from Linear Technology
Linear Technology has announced a new high reliability grade version of the LTC4444-5, a high-speed, high input supply voltage (100V), synchronous MOSFET driver designed to drive upper and lower power N-Channel MOSFETs in synchronous rectified converter topologies. This driver, combined with power MOSFETs and one of Linear Technology's many DC/DC controllers, forms a complete high efficiency synchronous regulator. The LTC4444MP-5 operates, and is 100% tested over a junction temperature range of -55°C to 125°C, compared to the I grade version's -40°C to 85°C operating temperature range.
Fairchild's Synchronous Buck Regulator Provides Over 95 Percent Peak Efficiency
The Fairchild FAN8060, a 1MHz, 1A integrated synchronous step-down regulator for DC-DC conversion, provides a peak efficiency of over 95 percent. Complementing this strong efficiency, the step-down regulator also offers a fast transient response time that swiftly responds to current fluctuations when there is a sudden change in load. It also features soft-start allowing a designer to start up in a controlled manner to avert over-voltage spikes that can compromise the system.
MOSFET H-bridges optimise design of DC fans and inverters
A range of four H-bridge MOSFET packages from Diodes Incorporated is set to simplify DC fan and CCFL inverter circuits, by reducing both component count and PCB size in space constrained applications.
Avago Expands Family of Fifth Generation Power Amplifiers for Mobile Handsets
Avago Technologies has announced the addition of five new CoolPAM power amplifiers (PAs) for Universal Mobile Telecommunications (UMTS) band handsets and datacard applications. The new ACPM-73x2 series of PAs are based on Avago's fifth generation CoolPAM circuit technology which provides one of the longest talk times among existing power amplifiers with very low quiescent current at about 3mA.
Linear's High Power PD Controller Addresses IEEE 802.3at PoE+ Standard
Linear Technology has introduced the LTC4265, an 802.3af/802.3at compliant Power over Ethernet (PoE) interface controller for high-power Powered Device (PD) applications needing up to 25.5W. In 2003, the IEEE 802.3af definition specified a maximum power delivery of up to 12.95W, which was more than adequate for applications like VoIP phones, security cameras and wireless access points. However, the desire for additional functionality means today's applications are more power hungry than ever.
Akros Silicon Claims First PoE Powered Device Platform with Integrated GreenEdge 2kV Isolation
Akros Silicon has announced the AS1854, a Power over Ethernet, Power System-on-a-Chip with 2kV integrated isolation for the next-generation of IP appliances such as IP phones, IP cameras, wireless access points (WAP), Thin Client terminals, and WiMAX CPEs. Built around Akros' patented GreenEdge digital isolation technology, the AS1854 eliminates low-speed, bulky opto-couplers and integrates functionality of up to nine separate ICs used in current solutions, including a third-generation IEEE 802.3af/at PD controller and quad-output digital power DC-DC converters.
25V and 30V MOSFETs for PoL Synchronous Buck Converter Applications
International Rectifier has launched a series of 25V and 30V N-channel trench HEXFET power MOSFETs featuring enhanced switching performance for synchronous buck converter and battery protection. The new family of MOSFETs utilizes IR's proven silicon technology to deliver benchmark on-state resistance (RDS(on)) and improved switching performance. The devices' low conduction losses improve full-load efficiency and thermal performance while low switching losses help to achieve high efficiency even at light loads.
Analog Devices’ Low-Vin, Low Drop-Out Regulators For Core Voltage Rails
Analog Devices has introduced a family of low drop-out regulators (LDOs) optimized for low input voltage and output voltage operation where low-noise power is needed. Available in 800-mA, 1.2-A and 2-A load current ranges, the low-Vin, single-rail input ADP1740, ADP1741, ADP1752, ADP1753 and ADP1754 LDOs offer improved conversion efficiency and superior PSSR (power supply rejection ratio) to support today's high-performance signal chains.
1.5A Buck and 1.5A Boost 2MHz Step-Down DC/DC Converters & LDO Controller in 4mm x 4mm QFN
Linear Technology has announced the LT3570, a 36V, 1.5A(ISW) buck and boost regulator combined with a linear controller packaged in a 4mm x 4mm QFN or TSSOP-20E. The LT3570 operates from a VIN range of 2.5V to 36V (40VMAX), making it ideal for the load dump and cold-crank conditions commonly found in automotive applications.
Flyback Controller Charges Any Size Capacitor
Linear Technology has announced the LT3751, a flyback controller designed to rapidly charge large capacitors to voltages as high as 1000V. The LT3751 drives an external N-Channel MOSFET and can charge a 1000uF capacitor to 500V in less than 1 second, making it ideal for applications such as professional photoflash systems, RF security, inventory control systems and specialized high voltage power supplies.
Linear Constant Current Regulators Are Cost-Effective Discrete Solution for Regulating Current in LEDs
ON Semiconductor has introduced a series of two-terminal linear constant current regulators ideal for driving current in automotive, industrial signage and architectural LED lighting applications. The new constant current regulators operate over a wide range of input voltages and provide engineers a simple and cost-effective solution for regulating current in their applications without compromising on performance.
200V IC for Automotive Powertrain and Battery Management Applications
International Rectifier has launched the AUIRS2003S 200V IC for low- mid- and high-voltage automotive applications including automotive pre-charge switch and stepper drives and DC-DC converters. Qualified to AEC-Q100 standards, the AUIRS2003S is a rugged, flexible high speed power MOSFET driver with dependent high- and low-side referenced output channels tailored for use in harsh automotive environments and under-the-hood applications.
High Efficiency I2C USB Power Manager & Li-Ion Charger
Linear Technology has introduced the LTC4099, an autonomous I2C controlled, high efficiency power manager, ideal diode controller and Li-Ion/Polymer battery charger for portable USB powered devices such as media players, digital cameras, PDAs, PNDs and smart phones. Parameters including input current limit, charge current, termination current, and float voltage can be programmed via I2C. The I2C port also allows the user to read back system status information.
Ultralow Noise DC/DC Regulators Meet Both EMI & Multi-Gigabit SERDES Specifications
Linear Technology has introduced the LTM4606 and LTM4612, ultralow noise DC/DC uModule regulators designed to deliver low noise power by attenuating both radiated energy and conducted wideband harmonic energy. The LTM4606, designed to regulate outputs from 0.6V up to 5V, has been verified by Xilinx Corporation, demonstrating flawless high speed multi-gigabit-per-second digital data transmission in SERDES (serializer-deserializer) and RocketIO applications.
Space-saving digital power management IC features Zilker Labs’ patented technology
Intersil has introduced the ZL2008, a high-performance synchronous step-down DC-DC converter with pin-strap compensation and current sharing. Taking advantage of Zilker's patented Digital-DC™ technology, the ZL2008 is designed for digital power supply module and system designers who demand easy-to-use board-level power supply configuration to keep ahead of rapidly changing market requirements.
Tiny High Voltage LDO from Linear Technology Has 3uA IQ
Linear Technology has announced the LT3008, the newest member in a family of high voltage, micropower PNP-based LDOs featuring ultralow quiescent current of just 3uA. The LT3008 has high input voltage capability, spanning 2.0V to 45V with an adjustable output voltage ranging from 0.6V to 36V. The IC delivers up to 20mA output current with a corresponding low dropout voltage of only 300mV. Output tolerance is tightly regulated to within ±2% over line, load and temperature.
Photo flash and backlight driver ICs optimise power efficiency in phone designs
AnalogicTech has introduced a set of flash and backlight White LED drivers for the feature phone market. Offering new efficiencies in power usage in highly compact packages, the AAT3176 flash driver and the AAT3351 WLED driver help handset designers extend battery life and reduce product footprint.
6th Generation IGBT Modules from Mitsubishi Electric
Mitsubishi Electric is launching a new IGBT family using the latest 6th generation IGBT chips with advanced CSTBTTM (Carrier Stored Trench Gate Bipolar Transistor) technology and newly developed diode chips for an optimized loss performance.
