EL SEGUNDO, USA: International Rectifier (IR) has 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 5 V bias or 3.3 V 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.
Tuesday, March 1, 2011
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