The LTM4663 is a complete 1.5A µModule®Thermoelectric Cooler (TEC) regulator in a tiny 3.5mm × 4mm × 1.3mm LGA package. Included in the package are the TEC controller, linear power stage, switching regulator, inductor and all support components.Operating over an input voltage range of 2.7V to 5.5V, the LTM4663 supports a 1.5A continuous sink or source current capability. Only input and output capacitors are needed. The LTM4663 has two zero drift, rail-to-rail chopper amplifiers to serve as the thermistor input amplifier and the temperature feedback control loop.The LTM4663 supports NTC, PTC thermistors and resistive temperature detectors (RTD). The maximum cooling and heating currents can be programmed independently as well as the maximum TEC voltage.The LTM4663 is available in LGA RoHS compliant terminal finish.APPLICATIONSTEC Temperature ControlOptical Networking System, Optical ModuleLiDAR System