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It looks like LiPo batteries stay above 3.3V in normal charge levels, and drop to 3.0V when they're below ~80% capacity.

Image source: https://learn.adafruit.com/li-ion-and-lipoly-batteries/voltages

Based on this, you can stick with an LDO since it's the cheapest and easiest way to step down a voltage, assuming you don't mind the efficiency losses when your battery is >4.0V. LDOs will dissipate any unused power as heat; the greater the difference between Vin and Vout, the lower the efficiency. A benefit when compared with switching topologies is a much smaller ripple on Vout, which is good for sensitive electronics.

It looks like LiPo batteries stay above 3.3V in normal charge levels, and drop to 3.0V when they're below ~80% capacity.

Based on this, you can stick with an LDO since it's the cheapest and easiest way to step down a voltage, assuming you don't mind the efficiency losses when your battery is >4.0V. LDOs will dissipate any unused power as heat; the greater the difference between Vin and Vout, the lower the efficiency. A benefit when compared with switching topologies is a much smaller ripple on Vout, which is good for sensitive electronics.

It looks like LiPo batteries stay above 3.3V in normal charge levels, and drop to 3.0V when they're below ~80% capacity.

Image source: https://learn.adafruit.com/li-ion-and-lipoly-batteries/voltages

Based on this, you can stick with an LDO since it's the cheapest and easiest way to step down a voltage, assuming you don't mind the efficiency losses when your battery is >4.0V. LDOs will dissipate any unused power as heat; the greater the difference between Vin and Vout, the lower the efficiency. A benefit when compared with switching topologies is a much smaller ripple on Vout, which is good for sensitive electronics.

Source Link
ibuz
ibuz
  • 21
  • 2

It looks like LiPo batteries stay above 3.3V in normal charge levels, and drop to 3.0V when they're below ~80% capacity.

Based on this, you can stick with an LDO since it's the cheapest and easiest way to step down a voltage, assuming you don't mind the efficiency losses when your battery is >4.0V. LDOs will dissipate any unused power as heat; the greater the difference between Vin and Vout, the lower the efficiency. A benefit when compared with switching topologies is a much smaller ripple on Vout, which is good for sensitive electronics.