LTC3115-1

FEATURES nn Wide VIN Range: 2.7V to 40V nn Wide VOUT Range: 2.7V to 40V nn 1A Output Current for VIN ≥ 3.6V, VOUT = 5V nn 2A Output Current in Step-Down Operation for VIN ≥ 6V nn Programmable Frequency: 100kHz to 2MHz nn Synchronizable Up to 2MHz with an External Clock nn Up to 95% Efficiency nn 30µA No-Load Quiescent Current in Burst Mode® Operation nn Ultralow Noise Buck-Boost PWM nn Internal Soft-Start nn 3µA Supply Current in Shutdown nn Programmable Input Undervoltage Lockout nn Small 4mm × 5mm × 0.75mm DFN Package nn Thermally Enhanced 20-Lead TSSOP Package nn AEC-Q100 Qualified for Automotive Applications APPLICATIONS nn 24V/28V Industrial Applications nn Automotive Power Systems nn Telecom, Servers and Networking Equipment nn FireWire Regulator nn Multiple Power Source Supplies LTC3115-1 40V, 2A Synchronous Buck-Boost DC/DC Converter DESCRIPTION The LTC®3115-1 is a high voltage monolithic synchronous buck-boost DC/DC converter. Its wide 2.7V to 40V input and output voltage ranges make it well suited to a wide variety of automotive and industrial applications. A proprietary low noise switching algorithm optimizes efficiency with input voltages that are above, below or even equal to the output voltage and ensures seamless transitions between operational modes. Programmable frequency PWM mode operation provides low noise, high efficiency operation and the ability to synchronize switching to an external clock. Switching frequencies up to 2MHz are supported to allow use o...