-- Monolithic Power Systems (MPWR) reported Q1 adjusted earnings late Thursday of $5.10 per diluted share, up from $4.04 a year earlier.
Analysts polled by FactSet expected $4.90.
Revenue in the three months ended March 31 rose to $804.2 million from $637.6 million a year earlier.
Analysts polled by FactSet expected $781.9 million.
The company expects Q2 revenue of $890 million to $910 million. Analysts expect $817.1 million.
Monolithic shares rose 7% in after-hours trading.