Intersil Corporation Announces Two New High Performance, Single Output Low-Dropout Voltage Regulators
Oct 5 15
Intersil Corporation announced two new high performance, single output low-dropout (LDO) voltage regulators that provide best-in-class dropout and transient performance for noise sensitive loads. The ISL80510 and ISL80505 deliver 1A and 0.5A of continuous output current and ultra-low dropout of 130mV and 45mV at full load, respectively. The ISL80510's maximum dropout is nearly 50% lower than the nearest competitor, which enables lower power dissipation in industrial, wired and wireless equipment. Intersil's ISL80510/05 LDOs also provide better transient performance with peak-to-peak excursions up to nine times lower than competitive LDOs. This transient performance level and DC accuracy of 1.8% safeguards against voltage undershoots and overshoots to deliver clean point-of-load voltage to CPUs, DSPs and MCUs, which require tight voltage accuracy and low noise. The ISL80510/05's compensation loop provides excellent noise filtering by maintaining a flat power supply rejection ratio (PSRR) response over a wide range of frequencies. The ISL80510 operates from input voltages of 2.2V to 6V, and the ISL80505 supports 1.8V to 6V. The output voltage of these LDOs can be adjusted from 0.8V to 5.5V, which enables designers to cover a broad range of applications including low power RF amplifiers, communications equipment, industrial process control systems, test instruments, medical equipment, and consumer network routers. An adjustable soft-start feature allows designers to control the input inrush current and program the startup time to accommodate any power-up sequencing requirement.
Intersil Corporation Announces the Ultimate Power Combo for 2-in-1s, Ultrabooks and Tablets
Sep 28 15
Intersil Corporation introduced its latest power saving solutions for 2-in-1s, ultrabooks and tablets: the ISL95852 highly integrated power management IC (PMIC) and the ISL95521 battery charger. Both devices meet Intel's IMVP8 specifications to support its new ‘Skylake’ 6th Gen Intel Core processors. The ISL95852 and ISL95521 leverage Intersil's patented R3 modulation technology, which delivers best-in-class light load efficiency, superior regulation accuracy and fast dynamic response, resulting in better system power management and longer battery life. The ISL95852 is the industry's most integrated Vcore PMIC for IMVP8 platforms. Its 4mm x 4mm size and high switching frequency enable the use of small external inductors and capacitors to reduce board space by 50% compared to discrete solutions. The ISL95852 integrates control, MOSFET drivers, power MOSFETs and fault monitoring and protection for three synchronous buck switching regulators. These high-efficiency voltage regulators convert system voltage from a battery or AC adapter into three voltage rails required for the core processor, graphics processor and system agent. The ISL95852's programmable switching frequency is 2x faster than competitive solutions and is adjustable up to 1.3MHz during load transients. The ISL95521 is the industry's first Hybrid Power Boost (HPB) and Narrow VDC (NVDC) combination battery charger. Its charge current accuracy of 1.2% is 4x higher than competing solutions, and extends battery run-time while enabling faster system test and calibration for improved manufacturing yields. The ISL95521 combo battery charger is pin-configurable for HPB or NVDC mode, eliminating the need for circuit redesigns. Both configurations support 2-cell to 4-cell Li-ion batteries as well as system turbo-boost-mode, which helps the battery and AC adapter work together to supply the system load when it exceeds the adapter's capability. The HPB charger configuration reverse boosts battery energy to the system bus in turbo mode, while the NVDC charger quickly turns on the battery BGATE to help the adapter deliver system power. Intersil's total IMVP8-compliant power management solution, which also includes the ISL95908 peripheral PMIC, powers up the CPU/GPU, battery pack, and subsystem peripherals: flash memory, USB, HDMI, audio, sensors, camera module and WiFi. Key Features and Specifications of ISL95852 PMIC: Highly integrated power management IC for Intel IMVP8 CPUs; Three high frequency integrated FET switching regulators produce core processor, graphics processor and system agent voltage rails; Extensive fault protection for over-current, over-voltage, under-voltage, and over-temperature with alert signal; I2C bus allows system fault monitoring, enable control, configurable GPIO and output voltage offset programming; and PROCHOT# and PSYS monitoring delivers system power information from AC adapter or ISL95521 battery charger to ISL95852 PMIC where it's digitized and sent to CPU. Key Features and Specifications of ISL95521 Hybrid Battery Charger: Pin configurable as HPB charger or NVDC charger enables AC adapter to provide system power in turbo mode; Protection features include PROCHOT# and PSYS indicator for system low voltage, adapter over-current, battery over-current, system overheat, adapter/battery current limits; SMBus programmable limit settings with adapter/battery current monitors and 1.2% high accuracy extends battery run-time; NFETs actively control inrush current to prevent FET damage; Prevents system crash and memory loss: the adapter instantly takes over the system load when battery pack is removed during turbo and learn mode; and 16 switching frequency options from 350kHz to 1MHz allows use of smaller, lower cost inductors. Pricing and Availability: The ISL95852 PMIC is available now in a 4mm x 4mm, 64-bump WLCSP package and is priced at $6.99 in 1k quantities. The ISL95521 HPB/NVDC combo battery charger is available now in a 4mm x 4mm, 32-lead QFN package and priced at $2.49 in 1k quantities.
Intersil Delivers First Encapsulated 80A Digital Power Module
Sep 14 15
Intersil Corporation announced the first 80A fully encapsulated digital DC/DC PMBus power module that provides point-of-load (POL) conversions for advanced FPGAs, DSPs, ASICs, processors and memory. The ISL8273M is a complete step-down regulated power supply that delivers up to 80A output current and operates from industry standard 5V or 12V input power rails. Multi-phase current sharing of up to four ISL8273M power modules enables power supply designers to create a 320A solution with output voltages as low as 0.6V. Housed in a compact 18mm x 23mm module, the ISL8273M delivers the high power density and performance for increasingly space-constrained data center equipment and wireless communications infrastructure systems. The ISL8273M digital power module leverages a patented ChargeMode™ control architecture that delivers best-in-class efficiencies, with up to 94% peak efficiency and better than 90% efficiency on most conversions. It also provides a single clock cycle fast transient response to output current load steps common in FPGAs and DSPs processing power bursts. The ISL8273M's compensation-free design keeps the device stable regardless of output capacitor changes due to temperature, variation or aging while eliminating the need for an external discrete compensation network. The 80A ISL8273M further distances itself from competitive digital power modules by delivering 2x higher output current. Its proprietary High Density Array (HDA) package offers unmatched electrical and thermal performance through a single-layer conductive package substrate that reduces lead inductance and dissipates heat primarily through the system board. The ISL8273M is built on Intersil's proven, fourth generation digital controller technology and is pin-for-pin compatible with the 50A ISL8272M. It expands Intersil's existing 6A - 50A digital power module family, giving customers an easy migration path to higher current rails. These fully encapsulated power modules are compatible with all industry pick and place equipment for full manufacturing automation.