Adafruit 1903 PowerBoost 5V USB Boost 500mA from 1.8V+

Order Code:

75-0576

Brand: Adafruit MPN: 1903 EAN-13: 0700161459869

Discontinued


The Adafruit PowerBoost 500 is a great power supply for your next portable project. Starting from a 1.8V (or higher) battery, it will produce a steady 5.2V output giving you headroom for cable resistance, high inrush currents or maybe a protection diode. Its internal 2A boost converter will supply more than 500mA from sources down to 2V and up to 1000mA from a 3.7V LiPo or Li-ion battery. The TPS61090 chip at the heart of the PowerBoost comes with some useful extra features such as an enable pin which can turn the voltage output off, low battery indication, support for iPhone / iPod 500mA charging, and a greater than 90% conversion efficiency.

Supplied fully assembled plus a USB A socket (host socket). Choose whether to solder on the USB socket to supply a USB peripheral, add your own terminal block or if you prefer it wire directly to the board for a lower profile solution (22AWG recommended).


  • DC boost converter supplies 5.2V from 1.8V or above
  • Up to 1A output at 5V DC from suitable batteries
  • 90% plus power efficiency for longer life
  • Adafruit part no. 1903

Please check that the batteries you use with this device are rated for the current you wish to draw from them. Batteries are available separately.

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.

*Customers looking to resell on eBay or Amazon should contact Adafruit directly.


Type 5V

Questions


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Wednesday, July 3, 2019 Question by: Rapid Customer | Product code: 75-0576
Q. I am not IT expert just entuasiast, what i need is 5v constant power supply with power cut OFF when battery charge reaches 4.1v at 800-1200mA and turns charge ON when battery reaches 3.6v (adjustable V is disarable option) in other words i need item costantly powered but charge only when battery is drained to about 20% and stop charging when battery charged to 90% capacity
A. Hi Saul, thank you for your question. The unit mentioned does have a low battery detector for when the voltage drops below a user set threshold. The full data sheet for the applications and technical information can be found here.

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