FEATURES
n Wide Input Voltage Range: 2.8V to 40V n Ultralow Quiescent Current and Low Ripple Burst Mode® Operation: IQ = 9μA n 5A, 40V Power Switch n Positive or Negative Output Voltage Programming with a Single Feedback Pin n Programmable Frequency (300kHz to 2MHz) n Sychronizable to an External Clock n Spread Spectrum Frequency Modulation for Low EMI n Bias Pin for Higher Efficiency n Programmable Undervoltage Lockout (UVLO) n Overcurrent and Overtemperature Protection n Thermally Enhanced 12-Lead 4mm × 3mm DFN APPLICATIONS
n Industrial and Automotive n Telecom n Medical Diagnostic Equipment n Portable Electronics DESCRIPTION
The LT®8334 is a current mode DC/DC converter with a 40V, 5A switch operating from a 2.8V to 40V input. With a unique single feedback pin architecture, it is capable of boost, SEPIC or inverting configurations. Burst Mode operation consumes as low as 9μA quiescent current to maintain high efficiency at very low output currents, while keeping typical output ripple below 15mV.
Analog Devices
