Using TI's TPS75003 and TPS62040 power management ICs, the TPS75003 has two maximum 3 A topology power supplies and one 300 mA LDO power supply. Each Buck output voltage ranges from 1.2V to 6.5V and the LDO output voltage ranges from 0.9V. Between 6.5V, the input voltage range is between 2.2V and 6.5V. The TPS62040 is a high efficiency asynchronous switching DC/DC converter power supply with 95% conversion efficiency, an input voltage range of 2.5V to 6.0V, and an output voltage of 0.7V to 6.0V, so it can be powered from mains +5V.
The system power supply is divided into four types: +5V, +3.3V, +1.8V, +1.2V. The main power supply of the system is +5V, and the rest are supplied by +5V power supply. Therefore, a TPS75003 and a TPS62040 are used to complete the conversion of the four power supplies of the system. The SW1 pin of the TPS75003 is designed to pass through the SI2323 free-wheel shaping and output 1.2V voltage for the DM6446 core. The IS1 pin is connected to the reference voltage, the FB1 pin is connected to the output 1.2V as the feedback, and the SW2 pin is outputting the 3.3V voltage. The DM6446 peripheral interface is powered. The SW1 and SW2 pins of the TPS62040 are shorted and output 1.8V for the DM6446 memory interface. The FB pin is connected to 1.8V as a feedback input. In this way, a TPS75003 and TPS62040 power management chip can be used to supply power to the system. The TPS75003 and TPS62040 power conversion circuits are shown in the figure.
universal dual USB Car Charger compatible with any Android and iOS mobile devices. Car charger adapter charges your mobile device at maximum charging speed your device supports. charge your mobile devices including the iPad (max speed), iPhone (max speed), iPod.
All of our product had 100% tested before delivery to FBA warehouse, include the car charger and the Cable compatibility with iPhone,iPad.
Charging will stop automatically when battery is full.to maximize the safety of your devices.
Car Charger
Car Mobile Charger,Car Charger,Double Car Charger,Dual Port Car Charger
Hebei Baisiwei Import&Export Trade Co., LTD. , https://www.baisiweicable.com