AA battery DCDC boost module

It was originally used in Arduino, ZigBee and GPS modules,
but the PW5100 was too cheap, so 30 more PCBs were made (a single piece of a certain treasure is 0.3 soft sister coins).
 
Lichuang Mall does not sell or replaces the components:
Component name
link
Lichuang Mall No.
Pingxin Micro PW5100-50
Xuebao
 
dual-cell No. 5 battery compartment
Xuebao
C238059
 
R3 and C2 are RC circuits and can be omitted to prevent instant unplugging To insert a large current and increase reaction efficiency, R3 can be set to 300 to 500 milliohms.
As long as U1 (PW5100) + C3 (10uF) + L1 (1uH~3.3uH) + C6 (22uF) can work, the extra components are filtering and decoupling.
 
The measured peak performance can reach about 6W (5V 1.2A), but the chip temperature has risen to 95 degrees at this time, and it is not recommended to use it under high load for a long time.
Actual measurement data (using new Panasonic Evolta Neo 1.5V alkaline batteries*2)
 
Datasheel values
​​Actual measurement values
​​Minimum operating voltage
0.7V
1V
operating voltage (300mA load)
5.05V
4.9V
ripple performance (300mA load)
 
+/- 55~70 mV
 
 
Added 3.3V LDO, which can be used by microcontrollers