ST1S03A Datasheet (STMicroelectronics) - step-down switching regulator

ST1S03A, step-down switching regulator

The ST1S03A is a step down DC-DC converter optimized for powering low-voltage digital core in HDD applications and, generally, to replace the high current linear solution when the power Order codes Part number ST1S03APMR ST1S03AIPMR ST1S03APUR ST1S03AIPUR May 2007 Packaging Tape & reel Tape & reel

ST1S03A Features

* Step-down current mode PWM (1.5MHz) DCDC converter 2% DC output voltage tolerance soft start for start-up current limitation and power on delay of 50-100µs Typical efficiency: > 85% Inhibit function 1.5A Output current capability Not switching quiescent current: max 1.5mA over temperatu