LTM4663
Ultrathin 1.5A µModule Thermoelectric
Cooler (TEC) Regulator
FEATURES DESCRIPTION Built-in Two Zero-Drift, Rail-to-Rail Chopper
Amplifiers
n 2.7V to 5.5V Input Voltage Range
n 1.5A Driving Capability
n 1% Accuracy 2.5V Internal Reference Output
n TEC Voltage and Current Monitoring
n Independent Programmable Heating and Cooling
Current Limit
n Programmable Maximum TEC Voltage
n Default 2MHz Switching Frequency
n Synchronization from 1.85MHz to 3.25MHz
n Capable of NTC, PTC and RTD Thermal Sensors
n 3.5mm × 4mm × 1.3mm LGA Package The LTM ®4663 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. n 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 …