Intersil Corporation Announces High-efficiency 1.2A Buck-Boost Regulator

Intersil Corporation, a major player in the design and manufacture of high-performance analog, mixed-signal and power management semiconductors, unveiled a compact, high-efficiency 1.2A buck-boost regulator that uses a proprietary H-Bridge Buck-Boost control architecture.

The newly announced ISL9110 boasts of a compact size that makes it ideal for battery-powered devices such as handheld instruments, games, point-of-sale systems and similar applications.

The ISL9110 features the industry's lowest voltage deviation during transitions between buck and boost modes. This further provides designers with flexibility in selecting the optimal output voltage.

It also simplifies design by providing a regulated output voltage from an input that can be either above or below the output voltage. The regulator minimizes external components that require just a single inductor and two capacitors.  

The ISL9110's 2.5MHz switching frequency is also the highest available in a buck-boost regulator, which further minimizes external component sizes.

Delivering more than 2A at 2Vout or 1.2A at 3.0Vout from a single Li-Ion battery, the device is available now in a compact 12-pin, 3x3mm TDFN package.

External feedback resistors can set the output voltage on the ISL9110's adjustable version to deliver output voltages as low as 1V, an important capability for loads such as RF power amplifiers.

Additional features and benefits of ISL9110 include input voltage as low as 1.8V, up to 95 percent efficiency in buck mode, over-current, under-voltage and over-temperature shutdown , mode/Sync pin controls PFM/PWM operation and switching frequency and switching frequency can be synchronized up to 3.25MHz.

The pricing of the ISL9110 is starts at $2.08 each in 1,000-piece quantities.  

In related news, Intersil Corporation has introduced the industry's first automotive grade ambient light sensor designed to support continuous operation up to 105 degrees Celsius.

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