LTC3541-3

LTC3541-3 High Efficiency Buck + VLDO Regulator High Efficiency 500mA Buck Plus 300mA VLDO Regulator Auto Start-Up Powers VLDO/Linear Regulator Output Prior to Buck Output ■ Independent 500mA High Efficiency Buck (VIN: 2.7V to 5.5V) ■ 300mA VLDO Regulator with 30mA Standalone Mode ■ No External Schottky Diodes Required ■ Fixed Buck Output Voltage: 1.8V ■ VLDO Input Voltage Range (LV : 1.675V to 5.5V) IN ■ Fixed VLDO Output Voltage: 1.575V ■ Selectable Fixed Frequency, Pulse-Skip Operation or Burst Mode® Operation ■ Short-Circuit Protected ■ Current Mode Operation for Excellent Line and Load Transient Response ■ Shutdown Current: