IR Introduces iP1837 and iP1827 Compact and Flexible Single Input Voltage DC-DC Regulators for High Current Applications Requiring High Efficiency and Density

Mar 1, 2011 | Technology Media

EL SEGUNDO, Calif. — International Rectifier, IR® (NYSE: IRF), a world leader in power management technology, today introduced the iP1837 and iP1827 iPowIR® voltage regulators for point-of-load (POL) applications including servers, netcom, data storage and telecom equipment requiring high current.

The iP1837 and iP1827 devices integrate a control MOSFET, synchronous FETKY®, bootstrap diode, bootstrap capacitor and internal over-current protection in a compact 7.7 mm x 7.7 mm LGA wireless package, reducing component count and shrinking PCB size by 20 percent compared to discrete solutions.

The new devices feature true differential voltage sensing for precise regulation, +/- 0.5 percent accurate reference voltage over-temperature, precision dead time trim to maximize efficiency, and body braking to optimize transient response. Additionally, the iP1837 and iP1827 are pin compatible for 25 A and 35 A applications, offer wide input voltage range of 1.5 V to 16 V, programmable frequency up to 1.5 MHz, flexible 5V bias or 3.3V bias/single input, and are optimized for 12 V input operations and low output voltages.

"The iP1837 and iP1827 provide a highly scalable integrated POL solution up to 35 A with best-in-class efficiency over the entire load range to offer high efficiency and excellent thermal management tailored to server, storage and netcom applications that require a compact, energy-efficient and flexible high current solution," said Cecilia Contenti, IR's POL product marketing manager, Enterprise Power Business Unit.

The devices are fully protected and feature enhanced thermally compensated internal hiccup over-current protection allowing flat current limit over-temperature. Additional features include pre-bias start-up, over-voltage protection, thermal shutdown, enable pin with voltage monitoring capability, power good output, and programmable soft start.

Datasheets and application notes for the devices are available via the part number links above. In addition, the IRDCiP1837 and IRDCiP1827 reference designs featuring the iP1837 and iP1827 respectively are also available.

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