Tuesday, April 24, 2018
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Intersil Intros Buck-Boost/Boost Switching Regulators
High-efficiency buck-boost switching regulators for cell phones.
Milpitas, CA — Intersil Corporation (NASDAQ: ISIL), a provider of innovative power management and precision analog solutions, has introduced the industry's first high-current buck-boost and boost switching regulator family in a tiny, integrated CSP package, enabling improved efficiency for high current designs in a small form factor.

The company is extending its coverage of DC/DC switching regulator technology for battery-powered mobile devices and consumer electronics with the introduction of the ISL91110, ISL91108 and ISL91117 power management solutions. The ISL911xx switching regulators' architecture offers up to 96 percent efficiency to extend battery life and reduce overheating in high-current handheld devices. The proprietary architecture allows for smooth transitions from buck to boost to prevent glitches and noise in smartphones, tablets and other single-cell lithium ion (Li) battery-based systems.

The ISL91110 and ISL91108 buck-boost switching regulators are used in mobile devices to supply the system power management IC (PMIC), the Wi-Fi or radio frequency (RF) power amplifier, as well as other system peripherals such as the camera and memory interfaces. The ISL911xx family is based on proprietary, fully synchronous four-switch architecture. This advanced architecture enables the seamless transition from buck to boost, delivery of up to 2.5A output current at the lowest single-cell Li battery voltages to significantly improve power efficiency, increase battery life and prevent overheating of mobile devices. The ISL91117 boost converter is ideal for USB on-the-go implementations in handheld devices that require high current and high efficiency.

The ISL911xx family was designed for space constrained applications, and is capable of working with the smallest inductors and capacitors, making the product the ideal converter solution for mobile devices. A 2.6MHz switching frequency further reduces the power supply solution size. The regulators are packaged in an advanced wafer-level CSP package, reducing the footprint of the device to as small as 2.34 x 1.72mm. In addition, the switching regulators require only a single inductor and very few external components, minimizing overall space requirements.

The ISL911xx series consists of three models that are tailored specifically for user applications.

Contact: Intersil, 1001 Murphy Ranch Road, Milpitas, CA 95035 888-468-3774 or 408-432-8888 fax: 408-434-5351 Web:

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