Aimed at energy-efficient computing and consumer applications, International Rectifier's latest SupIRBuck integrated point-of-load (POL) voltage regulators feature hysteretic constant on-time (COT) modulators with adaptive dead-time control.
The IR347x and IR386x SupIRBuck families integrate a high performance controller with optimized power MOSFETs in a 4x5 mm or 5x6 mm PQFN package. The devices are designed with a 0.5V, 1 percent accurate internal reference voltage, allowing low and precise output voltage programmability. Features include over-temperature protection, thermally compensated over-current protection, over- and under-voltage protection, pre-bias start-up, power good output, and enable input with voltage monitoring capability.
Pricing: In 10,000-unit quantities, prices range from $1.10 for the IR3473 to $1.75 for the IR3477. The IR3863 costs $1.25 and the IR3865 costs $1.50 each. Pricing for the IRDC347x and IRDC386x SupIRBuck reference designs is $29.99 per kit.
Availability: Production orders are available immediately.
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