Power ICs
Renesas Electronics Introduces Power Semiconductor Devices Capable of Reducing Mounting Area by Half
Renesas Electronics, a premier provider of advanced semiconductor solutions, today announced the development of the RJK0222DNS and RJK0223DNS, two power semiconductor devices with ultra-compact packages for use in DC/DC converters (Note 1) that provide power to the MCU/CPU, memory, and other circuit blocks of products such as servers and notebook PCs.
Toshiba Electronics launches ultra-miniature, low-power 200mA LDO regulators
Toshiba Electronics Europe (TEE) has announced a new family of low-power 200mA low drop out (LDO) voltage regulators that are supplied in ultra-miniature wafer-level chip scale (WCSP) packages... Measuring just 0.79mm x 0.79mm x 0.5mm, devices in the new TCR4SxxWBG and TCR4SxxDWBG LDO families require just 8% of the board area of an equivalent SOT-25 device, while maintaining excellent ripple rejection and output noise performance.
Fairchild's High Voltage Gate Driver ICs Provide Improved Noise Immunity and Performance
Power engineers designing motor and industrial applications such as motor drive inverters, distributed power supplies and telecom system power supplies, need a high voltage gate driver solution that provides improved noise immunity and increased performance, while being pin-compatible to solutions currently available.
IR’s Family of -30 V P-channel Power MOSFETs Offers Design Flexibility and Simplicity
International Rectifier has introduced a new family of -30 V devices featuring IR's latest P-channel MOSFET silicon in an SO-8 package for battery charge and discharge switches, and system/load switches used in DC applications.
MAX8895: Industry's first battery charger with automatic USB enumeration
Maxim introduced the MAX8895, a linear battery charger for Bluetooth(R) headsets and portable devices that is compatible with the USB Battery Charging Specification, Revision 1.1. The MAX8895 is uniquely equipped with automatic adapter detection for distinguishing between USB devices, USB chargers, and dedicated chargers. It also integrates a USB enumeration function that automatically negotiates with the USB host to optimize charging current without processor intervention. This capability eliminates the need for a separate microcontroller and system software, thus providing the industry's only stand-alone charging solution.
IR's AUIRF7648M2 and AUIRF7669L2 Automotive DirectFET®2 Power MOSFETs Optimized for Switching Applications
International Rectifier has launched two automotive DirectFET2 power MOSFETs optimized with low gate charge for switching applications including Switch Mode Power Supplies (SMPS), Class D Audio systems, High Intensity Discharge (HID) lighting, and other automotive power conversion applications.
2.4MHz Step-Down DC/DC Converter Draws Only 85µA of Quiescent Current & Withstands 80V Transients
Linear Technology has announced the LT3980, a 2A, 58VIN step-down switching regulator with Burst Mode operation to maintain quiescent current under 85µA. The LT3980 operates within a VIN range of 3.6V to 58V, with overvoltage lockout protection against transients as high as 80V, making the device ideal for load dump and cold-crank conditions commonly found in automotive applications. Its internal 3.4A switch can deliver up to 2A of continuous output current at voltages as low as 0.79V. The LT3980's Burst Mode operation provides ultralow quiescent current, well suited for applications such as automotive or telecom systems, which have always-on circuits and demand optimal battery life.
DIOFETs raise efficiency and increase reliability of PoL converters
Diodes Incorporated has introduced the first products from its proprietary DIOFET process that monolithically integrates a power MOSFET and anti-parallel Schottky diode into a single die. Used in the low side MOSFET position of synchronous buck point-of-load (PoL) converters, the DMS3014SSS and DMS3015SSS improve the efficiency and lower the operating temperature of fast switching PoL converters in high volume computing, telecom and industrial applications.
Semtech Expands Buck Regulator Platform with World’s Smallest 1.8A Dual Point-of-Load Regulator
Semtech Corp. (Nasdaq: SMTC), a leading supplier of analog and mixed-signal semiconductors, today announced the latest device in its buck controller platform. The new SC283 is the world's smallest 1.8A dual-channel regulator for point-of-load (POL) applications, combining two step-down regulators in an ultra-small, low-profile 2 x 3 x 0.8mm, 18-pad MLPQ package. With integrated VID pins to enable independent configuration and control of the output voltages of each regulator, the SC283 eliminates the need for two pairs of external feedback resistors, further reducing the overall design footprint of the device. The SC283 POL regulator operates at a fixed switching frequency of 2.5MHz enabling it to work with very small chip inductors, providing an ultra-compact, 111mm2 solution footprint.
Dialog Semiconductor's power management IC and audio codec adopted by Renesas Electronics' SH7724 mobile device platform
Dialog Semiconductor plc (FWB: DLG), a leading provider of highly integrated innovative power management semiconductor solutions, has announced its DA9052 system level power management (PMIC) and DA7210 Class G audio ICs have been incorporated in the Renesas Electronics' SH7724 reference platform, which is now shipping and generally available.
IR Introduces Family of Rugged AEC-Q100 Qualified 600 V ICs for Energy-Efficient Automotive Gate Drive Applications
International Rectifier has launched a family of rugged 600 V ICs for energy-efficient automotive gate drive applications including Piezo and common rail injection, starter alternator, electronic power steering, fan and compressor applications.
XC2401A8167R-G Low Cost 1.575GHz CMOS LNA for GPS, Galileo, and GLONASS Applications
Torex is proud to unveil its next generation Low Noise Amplifier (LNA). Using an advanced CMOS process the XC2401A8167R-G is a single stage, high-gain LNA, which offers both low noise operation (NF) and ultra low power consumption.
TI introduces industry's first -36-V, 200-mA LDO
Texas Instruments introduced the industry's first -36-V low dropout regulators (LDO). The TPS7A30, paired with the positive voltage TPS7A49, provides designers with a total solution for powering precision analog applications. The devices feature ultra-high power supply rejection ratio (PSRR) performance and as low as 16uVrms of output noise. The TPS7A30 generates 200 mA, while the TPS7A49 manages 150 mA.
2A, 42V Boost Converter Now Offered in High Temperature H & MP Grades
Linear Technology announced the H-grade and MP-grade versions of the LT3580, a current-mode, fixed frequency step-up DC/DC converter with internal 2A, 42V switch. The device operates from an input voltage range of 2.5V to 32V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive inputs. The H-grade version operates with a junction temperature range of -40°C to 150°C, whereas the MP-grade operates with a junction temperature range of -55°C to 125°C. This compares to the E- and I-grade versions' 125°C maximum junction temperature. All electrical specifications are identical for the E, I, H and MP. The H-grade parts are both tested and guaranteed to the junction temperature range of -40°C to 150°C and are ideal for automotive and industrial applications, which are subject to high ambient temperatures. Similarly, the MP-grade parts are tested and guaranteed to the junction temperature range of -55°C to 125°C and are well suited for militar
Renesas Electronics - Power MOSFET Products that Realize High-Efficiency DC/DC Converters
Renesas Electronics, a premier provider of advanced semiconductor solutions, today announced the availability of its new 12th-generation power MOSFET products, the RJK0210DPA, RJK0211DPA, and RJK0212DPA, as power semiconductor devices for DC/DC converters used in applications such as general point-of-load, base stations, computer servers and notebook PCs.
7-Channel I2C-Controlled PMIC for High Power 1-Cell Li-Ion Systems
Linear Technology announced the LTC3675, a highly integrated general-purpose power management solution for high power single cell Lithium-Ion/Polymer cell systems. The device features seven independent rails, with I2C control, flexible sequencing and fault monitoring in a compact 28mm2 QFN package. The LTC3675 contains four high efficiency synchronous step-down regulators, a high current/high efficiency buck-boost regulator, a synchronous boost regulator, a dual-string 40V-LED driver and an always-on LDO. Pushbutton ON/OFF/RESET control, precision enable inputs and a power-on reset output provide flexible and reliable power-up sequencing. The LTC3675's I2C interface provides complete regulator control, status reporting and a maskable interrupt output. Quiescent current is only 16uA with all DC/DCs off to maximize battery run time.
500mA ''CL Capacitorless'' CMOS LDO Regulator
The new XC6503 series from Torex, integrates internal phase compensation circuitry, removing the need for expensive output capacitors and dramatically reducing the necessary PCB layout area. Even with no capacitor, the XC6503 can deliver output currents up to 500mA and is readily available with fixed output Voltages from 1.2V to 5.0V in 0.05V increments.
IR Introduces Automotive DirectFET®2 Power MOSFETs Optimized for Class D Applications
The AUIRF7640S2, AUIRF7647S2 and AUIRF7675M2 devices expand IR's portfolio of automotive DirectFET®2 power MOSFETs for Class D Audio systems, and are optimized with low gate charge (Qg) to improve Total Harmonic Distortion (THD) and efficiency, while low Diode Reverse Recovery Charge (Qrr) further improves THD and lowers EMI.
500mA Negative Micropower LDO Offers New High Reliability Grade Operating Down to -55°C
Linear Technology Corporation announces a new high reliability, military plastic MP-grade version of the LT1175, a 500mA negative micropower low dropout regulator. The MP-grade LT1175 is offered in SOIC-8 and DD-Pak packages with a -55°C to +125°C operating junction temperature range. With a wide input voltage range of -4.3V to -20V, the LT1175 features micropower operating currents of 45uA quiescent and 10uA in shutdown, preventing output voltage rise under no-load conditions. The device's reference amplifier topology ensures precision DC characteristics and the ability to maintain good loop stability with a wide range of output capacitors. The device's power transistor anti-saturation design enables very low dropout voltage of 500mV (typical at full load). Fixed 5V and adjustable (-3.8V to -19.5V) output voltage versions are available.
Power Integrations’ New SENZero High-Voltage ICs Eliminate Sense Resistor Power Losses in Standby Mode
Power Integrations (Nasdaq: POWI), the leader in high-voltage integrated circuits for energy-efficient power conversion, today introduced SENZero, a family of ICs that disconnect sense resistors from high-voltage rails during standby or remote-off conditions. SENZero devices eliminate sense resistor power losses in standby mode and reduce total system power consumption, helping to meet the stringent demands of energy-conscious equipment makers and efficiency standards regulators.
Synchronous Monolithic 1-Cell Li-Ion/Polymer Battery Charger Delivers up to 4A Charge Current
Linear Technology introduced the LT3651-4.2, a highly efficient, 4A monolithic synchronous buck battery charger for 1-cell Li-Ion/Polymer batteries. The LT3651-4.2 accepts inputs up to 32V with a 40V absolute maximum rating for added system margin. Charge current is programmable and dynamically adjustable up to 4A; fully integrated synchronous power devices minimize power dissipation and save board space. User-selectable timer or C/10 termination requires no external microcontroller and simplifies the design. The LT3651-4.2 does not require external high-precision resistors to set the float voltage, further saving cost and space. Applications include industrial handheld instruments, 12V to 24V automotive and heavy equipment applications, desktop cradle chargers and notebook or tablet computers.
SOT23 Voltage Reference Offers 10ppm/°C Drift While Limiting Noise to Only 1.6ppm
Linear Technology introduced the LT6654, a SOT23 series voltage reference designed specifically for precision operation from -40°C to 125°C. This voltage reference combines 0.05% initial accuracy, 10ppm temperature drift and low frequency noise of only 1.6ppm. The LT6654 can operate on a supply voltage as low as 100mV above the output, and it maintains a line regulation error of only 5ppm/V on a supply voltage up to 36V. The buffered output enables source or sink capability up to 10mA, and limits load regulation error to only 8ppm/mA.
Intersil's Battery Charger is Most Efficient and Versatile for 1-Cell and 2-Cell Li-Ion/Li-Polymer Batteries
Intersil added to its growing family of compact, fully integrated battery chargers by introducing the new ISL9220. The new device is based on a true switched-mode topology that ensures the highest operating efficiency and lowest power dissipation for 1-cell and 2-cell Li-ion and Li-polymer based portable applications such as smartphones and tablet computers.
Programmable 1A Buck-Boost 2-Cell Supercap Chargers with Automatic Cell Balancing in Compact 12mm2 Package
Linear Technology Corporation introduces the LTC3625 and LTC3625-1, the latest in a family of 2-cell supercapacitor chargers for addressing high peak power, data backup and dying gasp needs in portable and data storage applications. The LTC3625/LTC3625-1's high efficiency switchmode topology includes an internal buck converter between VIN and the series capacitor mid-point VMID to regulate the voltage on the bottom capacitor, as well as an internal boost converter between VMID and VOUT to regulate the voltage across the top capacitor. The devices can charge two supercapacitors in series from a 2.7V to 5.5V current-limited supply to a pin-selectable output voltage (4.8V/5.3V for LTC3625 or 4V/4.5V for LTC3625-1). These ICs are optimized to provide fast capacitor charge times with high efficiency. The combination of high efficiency, high charge current, low quiescent current and low minimum external parts count make the LTC3625/-1 ideal for small form factor backup or high peak power s
austriamicrosystems announced low power consumption Class G and Class H Stereo Headphone Amplifiers
austriamicrosystems, has announced the AS3560 and AS3561 Stereo Headphone Amplifiers for mobile phones, portable navigation devices, music / media players and any media device that uses headphones. These new 30 mW headphone amplifiers continuously adjust the supply rails in response to the input signal, thus drastically minimizing power consumption as compared to traditional Class AB amplifiers.
IR Introduces Online IGBT Selection Tool to Optimize Power Management Design
International Rectifier has introduced a new online Insulated Gate Bipolar Transistor (IGBT) selection tool that enables design optimization in a wide range of applications including motor drives, uninterruptable power supplies (UPS), solar inverters, and welding.
Battery-monitoring IC reduces BMS cost by 80% in hybrid and electric vehicles
Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX11068, a high-voltage, 12-cell, battery-monitoring IC for hybrid vehicles, electric vehicles, and any system that stacks long series strings of batteries. This highly integrated solution employs a proprietary SMBus(TM)-laddered communication bus that allows multiple MAX11068s to be daisy chained together without expensive isolators. This approach reduces battery-management system (BMS) cost by up to 80%, while simplifying battery pack design and precisely balancing cells for maximum energy delivery.
100V Isolated Flyback DC/DC Controller Simplifies Design & Eliminates Optocoupler
Linear Technology announced the LT3748, a high input voltage isolated flyback DC/DC controller that significantly simplifies the design of an isolated DC/DC converter. No opto-isolator, third winding or signal transformer is required for feedback since the output voltage is sensed from the primary-side flyback signal. The LT3748 operates over a 5V to 100V input voltage range and drives an external N-channel power MOSFET, making it well suited for a wide variety of industrial, medical, telecom, datacom and automotive applications.
Renesas Electronics Introduces Seven New Power MOSFET Products with 8-Pin HSON Package for More Compact Automotive Electronic Units
Renesas introduced seven new power metal-oxide-semiconductor field-effect-transistor (MOSFET) products equipped in HSON packages for use in automotive electronics control units for applications including direct injection engine management and electric pump motor control.
Infineon Introduces 30V MOSFETs with 180A Current Capacity and Best-in-Class On-Resistance of less than 1 Milliohm for Automotive Applications
Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) today introduced a 30V Power MOSFET (Metal Oxide Semiconductor Field Effect Transistor) with the world's lowest R DS(on) for high current automotive applications. The new OptiMOS™-T2 30V MOSFET is a N-channel device with drain current of 180A and R DS(on) of just 0.9mΩ at 10V gate-to-source voltage. The IPB180N03S4L-H0, which comes in a D2PAK-7 package, addresses customer needs for Power MOSFETs in standard packages offering both high nominal currents and lowest R DS(on) at lowest cost.
Summit’s Tiny Programmable Single and Dual Integrated Buck Regulators Support “Green” Standards in Multimedia Consumer Electronics
Summit Microelectronics, has announced new programmable power manager (PPM) integrated circuits that will bring sophisticated digital power control and programmability to a much wider range of high-volume consumer applications than previously available. Summit's new SMB20X family supports advanced power management for "green" and EnergyStar® applications, including digital LCD/LED televisions, cable/satellite/IP set-top boxes, and other multimedia, broadband and small-office-home-office (SoHo) communications equipment.
AnalogicTech’s New Charger IC Improves Battery Performance in Today’s Portable Electronics
Advanced Analogic Technologies, Inc. (AnalogicTech) (Nasdaq: AATI), an analog semiconductor company focused on powering innovative solutions in consumer, industrial, and communications markets, today introduced the AAT3698, a single input 1.6A linear charger with 28V input protection and 50mA low dropout (LDO) to manage the charging, sequencing and protection of Lithium (Li)-Ion and Lithium Polymer-powered portable devices. Targeting portable electronic devices including cellular phones, GPS navigation systems, portable media players and general hand-held consumer devices, the AAT3698 incorporates key safety features that adjust for excessive temperature or voltage, up to 28V, to avoid over-charging or other damage to the battery during charging.
Fairchild Semiconductor’s IntelliMAX™ Load Switches Simplify Complex Power Design Challenges
Designers of higher-complexity consumer applications like set-top boxes, ultra-mobile PCs, mobile internet devices and eBooks need a power switch solution that can handle the battery management and green energy challenges associated with the higher load currents, lower supply voltages, larger batteries and more dynamic operating conditions found in these applications.
Isolated Monolithic Flyback Regulator
Linear Technology announced the LT3575, an isolated monolithic flyback switching regulator that significantly simplifies the design of an isolated DC/DC converter. No opto-isolator, third winding or signal transformer are required for feedback since the output voltage is sensed from the primary-side flyback signal. The LT3575 operates over a 3V to 40V input voltage range, has a 2.5A power switch and delivers up to 14 Watts of output power, making it well suited for a wide variety of industrial, medical, telecom, datacom and automotive applications.
National Semiconductor Adds Nine Extended Temperature Products to SIMPLE SWITCHER Power Module Family
National Semiconductor introduced nine new SIMPLE SWITCHER power modules that feature an extended operating temperature range and vibration and drop testing for use in harsh environments. The ruggedized, easy-to-use LMZ10503/4/5EXT, LMZ12001/2/3EXT and LMZ14201/2/3EXT power modules provide the efficiency of a synchronous switching regulator with the simplicity of a linear regulator, eliminating the external inductor and complex layout placement challenges typical of switching regulator designs.
Dual 2.25MHz Synchronous Step-Down DC/DC Converter with Programmable Input Current Limit Delivers 400mA & 800mA Independently
Linear Technology has announced the LTC3619, a dual output, high efficiency, 2.25 MHz, synchronous buck regulator with programmable average input current limit. It can deliver up to 800mA of continuous output current from one channel and 400mA from the other with efficiencies as high as 96%. Using a constant frequency and current mode architecture, the LTC3619 operates from an input voltage range of 2.5V to 5.5V, making it ideal for single-cell Li-Ion and USB applications.
Vishay Siliconix Releases Industry's Smallest and Thinnest N-Channel Chipscale Power MOSFET With 0.64-mm2 Area
Vishay Intertechnology, Inc. (NYSE: VSH) today unveiled the industry's smallest and thinnest n-channel chipscale power MOSFET and the first with a sub-1-mm2 outline. The 20-V MICRO FOOT® Si8800EDB combines an ultra-small 0.8-mm by 0.8 mm outline with a height of 0.357 mm to save space in portable electronics.
IDT claims industry's most flexible intelligent system power management IC
Integrated Device Technology, Inc. (IDT®; NASDAQ: IDTI), a leading provider of essential mixed signal semiconductor solutions that enrich the digital media experience, today announced a highly integrated microcontroller-based Intelligent System Power Management Solution targeted for portable consumer products, such as Smartphones, portable navigation devices, mobile Internet devices and eBooks.
EN55022 Class B Noise Compliant 3A DC/DC µModule Regulator Operates from 3.6V to 36V Input
Linear Technology Corporation introduces the LTM8033, a complete 3A DC/DC µModule regulator system. In addition to the device's onboard inductor, DC/DC converter and supporting circuitry, it includes an EMI filter, making it compliant with EN55022 Class B by a wide margin. The circuitry is housed in a small 11.25mm x 15mm x 4.32mm enclosed plastic LGA package and weighs only 2.3g. The LTM8033 operates from a wide input voltage range of 3.6V to 36V and can provide a regulated output voltage ranging from 0.8V to 24V at up to 3A. If more than 3A is required, multiple LTM8033 devices can be paralleled for current sharing.
4.5V to 26.5V Input 6A DC/DC µModule Regulator with Tracking & Phase-Lockable Frequency Synchronization in 135mm2 Footprint
Linear Technology Corporation introduces the LTM4618, a 6A DC/DC µModule® Regulator, which includes the inductor, MOSFETs, DC/DC regulator, input and output bypass capacitors and supporting circuitry in a 2.3g, 9mm x 15mm x 4.32mm LGA package. The LTM4618 features output voltage tracking for systems that need to sequence multiple rails for proper power up and down, and 250kHz to 780kHz fixed frequency PLL capability for noise-sensitive applications that require the switching frequency of the regulator to be a set value. For low voltage loads such as Vcore of FPGAs and processors, the LTM4618 includes safety features such as output overvoltage and short-circuit protection, as well as guaranteed +1.75% maximum total output DC error. Applications for the LTM4618 include medical systems, ATCA cards, single-board computers, plus industrial and networking equipment.
