2.5MHz 1.5A High Efficiency Low IQ Synchronous Boost

Features

  • Wide Input Voltage Range: 2.7V to 5.5V
  • Output Voltage 5.0V
  • IOUT up to 1.5 A at VOUT = 5.0 V, VIN ≥ 3 V
  • 2.5MHz PWM Switching Frequency
  • High Efficiency and Low Quiescent Current
    • Over 95% Efficiency
    • 1µA Shutdown Current
    • 33µA Quiescent Current in Pass Through
    • 56µA Quiescent Current in PFM Operation
  • ±2% DC Voltage Accuracy in PWM mode
  • Undervoltage Lockout (UVLO)
  • Short Circuit Protection
  • Hiccup Current Limit
  • Over Temperature Protection
  • Selectable Pass-Through Mode or True Load Disconnect During Shutdown
  • Output Capacitor Pre-Charge and Soft-Start
  • Pb-free 9-Bump, WLCSP 1.27mm x 1.30mm
  • RoHS and Green Compliant
  • -40°C to 85°C Operating Temperature Range

Applications

  • Smartphones and Tablets
  • Mobile Internet Devices
  • USB OTG
  • Wearables
  • Portable Devices

Key Electrical Specifications

Vin(Min) Vin(Max) VOUT IOUT IQ Control FSQ Package
2.7V 5.5V 5.0V 1.5A 56µA EN 2.5MH WLCSP33-9 1.27mm x 1.30mm

Typical Application Diagram

KTC2115