LTC3601

FEATURES nn 4V to 15V Operating Input Voltage Range nn 1.5A Output Current nn Up to 96% Efficiency nn Very Low Duty Cycle Operation: 5% at 2.25MHz nn Adjustable Switching Frequency: 800kHz to 4MHz nn External Frequency Synchronization nn Current Mode Operation for Excellent Line and Load Transient Response nn User Selectable Burst Mode® (No Load IQ = 300µA) or Forced Continuous Operation nn 0.6V Reference Allows Low Output Voltages nn Short-Circuit Protected nn Output Voltage Tracking Capability nn Programmable Soft-Start nn Power Good Status Output nn Available in Small, Thermally Enhanced 16-Pin QFN (3mm × 3mm) and MSOP Packages APPLICATIONS nn Distributed Power Systems nn Lithium-Ion Battery-Powered Instruments nn Point-of-Load Power Supply L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks and Hot Swap is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611. LTC3601 1.5A, 15V Monolithic Synchronous Step-Down Regulator DESCRIPTION The LTC®3601 is a high efficiency, monolithic synchronous buck regulator using a phase-lockable controlled on-time, current mode architecture capable of supplying up to 1.5A of output current. The operating supply voltage range is from 4V to 15V, making it suitable for a wide range of power supply applications. The operating frequency is programmable from 80...