3.0MHz High Efficiency Low IQ Synchronous Boost


  • Wide Input Voltage Range: 2.5V to 5.5V
  • Output Voltage 5.4V
  • IOUT up to 1.0 A at VOUT = 5.4 V, VIN ≥ 3.0 V
  • 3MHz PWM Switching Frequency
  • High Efficiency and Low Quiescent Current
    • Over 95% Efficiency
    • 35μA Quiescent Current in Bypass Mode
    • 55μA Quiescent Current in PFM Operation
  • ±2% DC Voltage Accuracy in PWM mode
  • Undervoltage Lockout (UVLO)
  • Short Circuit Protection
  • Hiccup Current Limit
  • Over Temperature Protection
  • Output Capacitor Pre-Charge and Soft-Start
  • Pb-free 9-Bump, WLCSP 1.38mm x 1.38mm
  • RoHS and Green Compliant
  • -40°C to 85°C Operating Temperature Range


  • Smartphones and Tablets
  • Mobile Internet Devices
  • Wearables
  • NFC Applications
  • Portable Devices

Key Electrical Specifications

VIN (Min) VIN (Max) VOUT Iout IQ Control FSW Package
2.5V 5.5V 5.4V 1.0A 55µA EN 3MHz WLCSP33-9 1.38mm x 1.38mm

Typical Application Diagram