Does nPM2100 support CR123A 1S2P?

Question

Hi Sir, 
 As we know the nPM2100 support AA/AAA batteries, LiMnO2 coin cells (e.g., CR2032), Alkaline coin cells (e.g., LR44) . 
 But could nPM2100 support CR123A 1S2P? 
 
 Thank you. 
 BRs, Han

Tharaka · Accepted Answer

Hi To clarify, the nPM2100 does support high-capacity batteries such as the CR123A (1550 mAh), E91 (2500 mAh Alkaline &ndash; AA), and L91 (3500 mAh Lithium &ndash; AA), as well as other AA variants. The battery capacity itself is not a limitation. 
 From a PMIC perspective: 
 
 The boost regulator can deliver up to 150 mA total. 
 The LDO/load switch is supplied from the boost rail, so it shares this 150 mA current limit&mdash;not in addition to it. 
 
 So yes, the nPM2100 can work with CR123A or high-capacity AA/AAA batteries, as long as the system load remains within the 150 mA budget. 
 From a fuel gauge perspective: 
 
 The fuel gauge currently supports Alkaline AA/AAA cells like the E91. 
 For CR123A or similar Li/MnO₂ chemistry cells, the CR2032 model can be used as a reference for early evaluation. 
 However, a custom model may be required for accurate state-of-charge estimation. Knowing the expected peak and average currents would help in assessing this further. 
 
 Hope this clarifies. 
 Thanks, Tharaka

Does nPM2100 support CR123A 1S2P?

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