New from International Rectifier are the iP1837 and iP1827 iPowIR voltage regulators for point-of-load (POL) applications requiring high current. The devices integrate a control MOSFET, synchronous FETKY, bootstrap diode, bootstrap capacitor and internal over-current protection in a 7,7 x 7,7 mm LGA package.
The new devices feature true differential voltage sensing for precise regulation, ±0,5% accurate reference voltage over temperature, precision dead time trim to maximise efficiency, and body braking to optimise 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, 5 V bias or 3,3 V bias/single input, and are optimised for 12 V input operations and low output voltages.
The regulators are fully protected and feature thermally compensated internal hiccup over-current protection allowing flat current limit over temperature. Additional features include pre-bias startup, over-voltage protection, thermal shutdown, enable pin with voltage monitoring capability, power good output and programmable soft start.
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