New Industry Products

Integrated Voltage Regulators with COT Engine for Enhanced Transient Response

March 16, 2020 by Paul Shepard

Infineon Technologies AG has introduced the IR3887M, IR3888M and IR3889M devices in its new family of integrated-point-of-load voltage regulators featuring a fast constant-on-time (COT) engine. This product family is designed for today's server, base station and telecom (operating at 85˚C ambient temperature) and storage applications requiring both high efficiency and high density.

The IR3887M is the smallest 30A device on the market. Fusing Infineon's latest FET generation and enhanced package technology allows for thermal support for 30A in a small 4mm x 5mm footprint.

The OptiMOS™ IPOL product family comes with an enhanced-stability COT engine with ceramic capacitors without the need for external compensation. Wide input voltage range of 4.3V to 17V, 2V min with 5V external bias, and precise output voltage (0.5% accurate reference voltage) are supported. The voltage regulators offer high efficiency at light-load and thermally-compensated internal overcurrent protection with four selectable limits for a less expensive and smaller inductor.

High switching frequency (up to 2MHz) for small PCB size and fewer bill-of-materials (BOM) is guaranteed with easy design and layout. These products provide benchmark efficiency, low power losses and the ability to thermally handle up to 30A of continuous current. Customers can also benefit from the benchmark output voltage regulation and enhanced load transient response.

The IR3888M and IR3889M come in a small, 5mm x 6mm footprint in a PQFN package. The IR3888M handles continuous current up to 25A and is RoHS2 compliant.


The IR388M and IR3889M are in stock now. The IR3887M device is also planned for release in 2020.