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renesas

Bidirectional buck-boost, dual-phase buck DC/DC controllers handle 48-V apps

November 18, 2020 By Redding Traiger Leave a Comment

The ISL81801 buck-boost controller acts as a “UPS on a chip” by enabling bidirectional current flow (forward or reverse) using constant-voltage and constant-current regulation. This allows a battery or supercapacitor to be charged and discharged using a single controller and power path. The ISL81801’s combination of the industry’s highest 80V buck-boost switching frequency (600 kHz) […]

Filed Under: Controllers, DC-DC, Development Tools, LED Lighting, Power Management, Telecommunications Tagged With: renesas

Buck-boost regulator features ultra-low quiescent current

October 13, 2020 By Redding Traiger Leave a Comment

Renesas Electronics Corporation introduced the ISL9122A, a flexible buck-boost switching regulator with bypass mode that provides ultra-low quiescent current (IQ) for powering sensors, microcontrollers (MCUs), wireless devices, and other system components. Operating with battery output from 1.8V to 5.5V, the ISL9122A extends the battery life of smart IoT devices powered by coin-cell, lithium, and multiple […]

Filed Under: Converters, IoT, Power Management, Regulators, RF Power, Wireless Tagged With: renesas, renesaselectronicscorp

Improve automobile battery life with the right chemistry

December 5, 2017 By Aimee Kalnoskas Leave a Comment

automobile battery life

by Theju Bernard, Intersil, a Renesas Company The automotive industry is quickly moving toward more electrification. The deployment of start-stop systems, emergency call (eCall) telematics, and hybrid vehicles is fueling the need for advanced battery management systems that not only charge the battery in a safe manner but also prolong its useful life. There are […]

Filed Under: batteries, Battery Management, Featured Tagged With: intersil, renesas

PMIC delivers 91% efficiency at 1.1 V output voltage for space/power constrained systems

May 15, 2017 By Aimee Kalnoskas Leave a Comment

Intersil, a subsidiary of Renesas Electronics Corporation, introduced a highly integrated programmable power management IC (PMIC) that delivers 91% efficiency at 1.1V output voltage for application processors, GPUs, FPGAs and high-performance system power. The new PMIC’s low RDS(on) MOSFETs and programmable PWM frequency allows designers to use fewer low-profile external components, enabling a 50mm2 power-supply […]

Filed Under: Power Management Tagged With: intersilcorporation, renesas

Synchronous buck regulators and overcurrent protection (OCP)

May 12, 2017 By Aimee Kalnoskas Leave a Comment

by Haifeng Fan, Intersil, a subsidiary of Renesas Electronics Synchronous buck regulators are widely used in industrial and infrastructure applications to step down 12V rails to point-of-load inputs as low as 0.6V for microcontrollers, FPGAs, memory and peripheral I/Os. Overcurrent protection (OCP) is essential to protect these switching regulators from damage by excessive current. Cycle-by-cycle current […]

Filed Under: DC-DC, FAQ, Featured, Industry Experts, Regulators Tagged With: FAQ, intersilcorporation, renesas

Avoiding mobile device brownouts

March 27, 2017 By Aimee Kalnoskas Leave a Comment

By Chuck Wong, Intersil, a Renesas Company With the ever-increasing performance of mobile application processors and GPUs, the need for a buck-boost regulator to stabilize the Li-ion battery supply-voltage terminals is becoming more and more important. Buck-boost regulators prevent brownout (a condition where power is briefly lost) by boosting the supply voltage during the notching […]

Filed Under: DC-DC, Featured, Industry Experts, Regulators Tagged With: intersil, renesas

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