FEATURES
n 8-Channel Independent Step-Down DC/DCs n Master-Slave Configurable for Up to 4A Per Output Channel with a Single Inductor n Independent VIN Supply for Each DC/DC (2.25V to 5.5V) n All DC/DCs Have 0.425V to VIN Output Voltage Range n Precision Enable Pin Thresholds for Autonomous Sequencing (or I2C Control) n 1MHz to 3MHz Programmable/Synchronizable Oscillator Frequency (2MHz Default) n I2C Selectable Phasing (90° Steps) Per Channel n Programmable Power-On Reset/Watch Dog/ Pushbutton Timing n Die Temperature Monitor Output n 48-Lead (7mm × 7mm) QFN Package APPLICATIONS
n General Purpose Multichannel Power Supplies n Industrial/Automotive/Communications DESCRIPTION
The LTC®3375 is a digitally programmable high efficiency multioutput power supply IC. The DC/DCs consist of eight synchronous buck converters (IOUT up to 1A each) all powered from independent 2.25V to 5.5V input supplies. DC/DC enables, output voltages, operating modes, and phasing may all be independently programmed over I2C or used in standalone mode via simple I/O with power-up defaults.
Linear Technology
