Features
• Operating input voltage from 3 V to 12 V
• Adjustable output voltage from 1.23 V to 9 V
• Low-dropout voltage: 0.35 V @ IO = 400 mA
• Overtemperature protection
• Overcurrent protection
• Adjustable current limitation
• Inhibit (ON/OFF) TTL-compatible control
• Gold bonding
• Nickel/palladium/gold-lead-finished (NiPdAu), whisker-free
• RML <1% and CVCM <0.1% guaranteed outgassing
• 50 krad(Si) total ionizing dose
• SEL free up to 62.5 MeV.cm²/mg
• Compliant with ST-LEO-specification

Description
The LEO3910 is a positive adjustable voltage regulator housed into a Power-SO 20L
slug-down package, which is able to provide in regulation a maximum output current
up to 2 A.
It can operate over a large temperature range of -40 °C to +125 °C.
The LEO3910 is compliant with the ST-LEO-specification, dedicated specifications for
space-ready rad-hard plastic products. This AEC-Q100-based specidfication offers
a specific trade-off among footprint size savings, cost of ownership and quality
assurance together with radiation hardness and a large quantity capability.

Application
• Low earth orbit (LEO) applications