2A output and 2.5MHz switching shrink the BOM
Rated for 2A continuous output, the ISL91127IRAZ-T7A drives moderate loads such as sensor modules, wireless transceivers, or small processor cores without external pass transistors. Synchronous rectification eliminates the external Schottky diode, improving efficiency at light loads and reducing component count.
Input voltage spans 1.8V to 5.5V, covering single-cell Li-ion (2.7-4.2V), two alkaline cells, or a regulated 5V rail — the part transitions seamlessly between buck and boost modes around the output setpoint. Output is adjustable from 1V up to 5.2V, or a fixed voltage option is available — the adjustable version uses an external resistor divider to set the regulation point.
Active production and compliance
ROHS3 compliant, the part meets the latest EU restriction requirements for lead, mercury, cadmium, and phthalates — no exemption declarations needed for EU-market shipments.