TPS54202HDDCR Description
The TPS54202HDDCR is a synchronous buck converter with an input voltage range of 4.5m V to 28m V and a synchronous buck of 2mi A. The device includes two integrated switches FET, internal loop compensation and 5ms internal soft start to reduce the number of components. By integrating MOSFET and using SOT-23 packaging, TPS54202HDDCRachieves high power density and provides a small footprint on printed circuit boards. The implementation of the advanced ecological model maximizes the light load efficiency and reduces the power consumption. In order to reduce electromagnetic interference, spread spectrum operation is introduced. The cycle-by-cycle current limit in the two high-end MOSFET protects the converter under overload conditions and is enhanced by the continuous current limit of the low-end MOSFET to prevent the current from getting out of control. If the overcurrent state lasts longer than the current time, hiccup mode protection is triggered.
TPS54202HDDCR Features
? 4.5-V to 28-V wide input voltage range
? Integrated 148-mΩ and 78-mΩ MOSFETs for 2-A,
continuous output current
? Low 2-μA shutdown, 45-μA quiescent current
? Internal 5-mS soft start
? Fixed 500-kHz switching frequency
? Frequency spread spectrum to reduce EMI
? Advanced Eco-mode? pulse skip
? Peak current mode control
? Internal loop compensation
? Overcurrent protection for both MOSFETs with
hiccup mode protection
? Overvoltage protection
? Thermal shutdown
? SOT-23 (6) package
TPS54202HDDCR Applications
? 12-V, 24-V distributed power-bus supply
? Industry application
– White goods
? Consumer application
