Power ICs
Diodes' MOSFETs optimised for VoIP applications
Diodes Incorporated has introduced a pair of N-channel MOSFETs offering designers of Voice over Internet protocol (VoIP) communications equipment a more rugged solution that significantly reduces circuit complexity and cost.
TPS386000 - TI introduces quad power management supervisor family with programmable delay and watchdog timer
Texas Instruments Incorporated today introduced a new family of quad supply voltage supervisors with programmable delay and watchdog timer, which minimize board space in today's multi-rail power supply designs. The TPS386000, TPS386020, TPS386040, and TPS386060 supervisors can monitor four power rails that are greater than 0.4 V with a threshold accuracy of 0.25 percent. This accuracy combined with an integrated watchdog timer provides system reliability for processor-based applications. The TPS386000 family of devices offer an independent programmable delay input for each supervisor channel, which can be set from 1.25 ms to 10 seconds for power supply sequencing.
High Power Dual Output Multiphase Step-Down DC/DC Controller with Differential Output Voltage Sensing, Tracking & PLL
Linear Technology Corporation introduces the LTC3855, a dual output high efficiency (up to 95%) synchronous step-down DC/DC controller with multiphase operation, differential output voltage sensing and integrated phase-lock loop (PLL) synchronization. Up to 12 phases can be paralleled and clocked out of phase to minimize input and output filtering requirements for high current applications (up to 200A).
Synchronous Buck Converter Delivers 93% Efficiency & Requires Only 12uA Quiescent Current
Linear Technology has announced the LTC3632, a 50V input-capable synchronous buck converter that delivers up to 20mA of continuous output current from a 3mm x 3mm (or MSOP8-E) package. It operates from an input voltage range of 4.5V to 50V with protection up to 60V, making it ideal for automotive and industrial 4mA to 20mA control loop applications.
CISSOID introduces High Temperature Power MOSFET Transistors
CISSOID has introduced a new family of High Temperature 40V N-channel power MOSFET Transistor guaranteed for operation from -55°C up to +225°C. These new devices named CHT-NMOS4005, CHT-NMOS4010 and CHT-NMOS4020 are rated respectively for 5A, 10A and 20A maximum drain current.
NXP Claims New Benchmarks for LED Drivers
NXP Semiconductors today announced three major developments in its portfolio of mains connected LED driver solutions: the success of its SSL2101 LED driver IC in matching LED lifetimes in an accelerated lifetime test; the introduction of the SSL 2102 integrated dimmable mains LED driver IC for SSL retrofit lamps and modules; and the launch of its online design tool for SSL applications, which makes it easy for engineers to test the behavior of LED lighting applications based on four NXP products.
Wide Input Voltage Range Low Minimum On-Time Synchronous Step-Down DC/DC Controller
Linear Technology has announced the LTC3775, a low minimum on-time wide input voltage range synchronous step-down DC/DC switching regulator controller that drives all N-channel power MOSFET stages. With less than a 30ns minimum on-time, the LTC3775 is well suited for high step-down ratios. The 4.5V to 38V input range encompasses a wide variety of applications, including most intermediate bus voltages and battery chemistries. The powerful onboard MOSFET gate drivers allow the use of high power external MOSFETs to produce output currents up to 20A with output voltages that range from 0.6V to 80% of the input voltage, making the LTC3775 ideal for automotive, industrial, medical, datacom and telecom applications.
Step-Down Converter Allows Applications Processors to Run at Maximum Clock Speed in Handheld Applications
Maxim has introduced the MAX8649, a 1.8A, synchronous, fixed-frequency, DC-DC step-down converter in a tiny, 4mm2 wafer-level package (WLP). This device delivers extremely tight output-voltage accuracy by integrating a highly precise bandgap reference and by minimizing offset errors in the feedback circuit. Fully differential remote sense ensures precise regulation at the load by eliminating the resistive losses associated with PCB trace impedance.
Quad Power-Supply Controller Uses Low-Cost Analog Supplies to Create Highly Accurate, Digital Power-Management Solutions
Maxim has introduced the MAX16064, a fully integrated, highly accurate (±0.3%), quad-channel digital power-supply controller. The MAX16064 offers a PMBus interface for programming, sequencing, monitoring, and margining power supplies. Connect the MAX16064 to up to four all-analog low-cost power supplies to create a fully programmable, highly accurate, digital power-management solution.
2.25MHz Synchronous Step-Down DC/DC Converter with Programmable Input Current Limit Delivers up to 800mA
Linear Technology announces the LTC3606B, a 2.25MHz, synchronous buck regulator with programmable average input current limit. It can deliver up to 800mA of continuous output current with efficiencies as high as 96%. Using a constant frequency and current mode architecture, the LTC3606B operates from an input voltage range of 2.5V to 5.5V, making it ideal for single-cell Li-Ion and USB applications. It can generate output voltages as low as 0.6V, enabling it to power the latest generation of low voltage DSPs and microcontrollers.
Microchip- Synchronous buck MOSFET drivers and Low Dropout Regulators provide maximum efficiency in small packages
Microchip has announced a new range of solutions that complement market trends toward 'green' products. The MCP14628 and MCP14700 synchronous buck MOSFET drivers and the MCP1804 Low Dropout Regulators (LDOs), provide maximum efficiency in small packages.
ON Semiconductor Expands Power Management Offerings for Computing and Game Console Applications with New High-Density Trench MOSFETs
ON Semiconductor has introduced 24 new 30 volt (V), N-channel Trench MOSFETs in DPAK, SO-8FL, µ8FL, and SOIC-8 packages featuring enhanced switching performance for synchronous buck converters in computing and game console applications.
Semtech - New Platform of Tiny Charge Pumps for LED Backlighting in Handheld Devices
Semtech has announced the SC654, SC657 and SC658 LED backlight charge pump drivers for 6, 5, and 4 LEDs, respectively. Optimized for single-cell Li-ion battery applications, each part in this new platform is packaged in ultra-thin (0.6mm max.) 14-pin 2x2mm MLPQ package to provide the industry's smallest solution in reliable and easy-to-handle plastic packaging.
LTM8031 - EMC Compliant, 1A, 36V DC/DC µModule Regulator
Linear Technology Corporation introduces a complete 1A DC/DC regulator system-in-a-package, the LTM8031. This is the second member of Linear's new electromagnetic-compatible DC/DC µModule family. The LTM8031 includes the inductor, switching DC/DC controller, power switches, filters and all support components housed in a 9mm x 15mm x 2.82mm land grid array package.
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.
