The LTM4623EV#PBF is a complete 3A step-down switching mode Module (micro module) Regulator. Included in the package are the switching controller, power FETs, inductor and support components. Operating over an input voltage range of 4 to 20V or 2.375 to 20V with an external bias supply, the regulator supports an output voltage range of 0.6 to 5.5V, set by a single external resistor. Its high efficiency design delivers 3A continuous output current. Only ceramic input and output capacitors are needed. This supports selectable discontinuous mode operation and output voltage tracking for supply rail sequencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability.
● Input voltage down to 2.375V with external bias
● ±1.5% Maximum total DC output voltage error
● Current mode control and fast transient response
● Low EMI EN55022 class B compliant
● External frequency synchronization
● Multiphase operation with current sharing
● Output voltage tracking
● Selectable discontinuous mode
● Power good indicator
● Overvoltage, overcurrent and over-temperature protection
