Five-LDO chip eases power management

Camarillo, Calif. – Semtech Corp.’s SC900, a power management IC with five ultra-low dropout regulators (ULDOs), includes an I2C interface to facilitate precise control of each regulator’s output voltage, power-good monitor setpoint, reset logic and active/nonactive shutdown mode. The chip is suited to cellular phones, PDAs and similar portable equipment applications where it’s essential to maintain performance as the battery voltage slowly declines.