DESCRIPTION
The LTC®3701 is a 2-phase dual constant frequency current mode step-down DC/DC controller providing excellent load and line regulation. Power loss and noise due to ESR of the input capacitor are minimized by operating the two controller output stages out-of-phase.

FEATURES
■ Out-of-Phase Controllers Reduce Required Input Capacitance
■ True PLL for Frequency Locking or Frequency Adjustment
■ Operating Frequency Range: 300kHz to 750kHz
■ Wide VIN Range: 2.5V to 10V
■ Constant Frequency Current Mode Architecture
■ Low Dropout: 100% Duty Cycle
■ Power Good Output Voltage Monitor
■ Internal Soft-Start Circuitry
■ Selectable Burst Mode®/Pulse Skipping Operation at Light Loads
■ Output Overvoltage Protection
■ Low Quiescent Current: 460µA
■ 0.8V ±2% Voltage Reference
■ Small 16-Lead Narrow SSOP Package

APPLICATIONS
■ One or Two Lithium-Ion Powered Applications
■ Notebook and Handheld Computers
■ Personal Digital Assistants
■ Portable Instruments
■ Distributed DC Power Systems