Over-voltage protectors claim smallest package size

Sunnyvale, Calif. — Maxim Integrated Products has introduced a family of 2 x 1.5-mm over-voltage protectors (OVPs) that protect low-voltage systems against faults up to 28 V. To minimize voltage dropout, these OVPs integrate an ultra-low, 40-milliohm (typ) internal on-resistance FET.

Small size and the industry's lowest on-resistance make the MAX4970, MAX4971, and MAX4972 devices suitable for media players, cell phones, PDAs, digital cameras, and other portable applications that require accurate over-voltage protection. For enhanced protection, these devices can drive an optional, external pFET to protect against reverse-polarity voltages.

The overvoltage thresholds are preset to 4.65 V (MAX4972), 5.8 V (MAX4970), or 6.35 V (MAX4971). Each OVP is packaged in a 12-ball WLP that operates over the -40°C to +85°C extended temperature range.

Pricing: Starts at $1.44.
Datasheet: MAX4970-72

Maxim Integrated Products , 1-800-998-8800,

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