ISL91128 Buck-Boost Regulator IC from China
Intersil ISL91128 integrates adjustable buck-boost regulator with programmable output voltage 1.8V-5.4V via I2C for battery-powered devices. Classified HTS 8542.39.00.70 due to performance adjustability features. Enables seamless battery voltage transitions.
Duty Rate — China → United States
50%
Rate breakdown
9903.91.0550%Effective with respect to entries on or after January 1, 2025, articles the product of China, as provided for in subdivision (f) of U.S. note 31 to this subchapter
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Demonstrate 0.1V step voltage programming capability in specs
• Load transient response graphs required for verification
• Avoid static converter classification by showing dynamic adjustment