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For low power single cell Li-ion battery charging applications
About Richtek ▶ Product Newsletters ▶ Newsletter Issue 3
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Most linear chargers for single cell Li-Ion batteries are fed by 5V supply, and are normally used for charge currents up to 1A, suitable for battery cells up to 1Ah
https://www.richtek.com/selection-guide/en/selection-charger.html
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The IC also monitors the battery voltage, Once the battery voltage exceeds 4.35V and last for
Products ▶ Battery Management ▶ Monitoring and Protection ▶ RT9718
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The RT9538 is a PWM switch mode battery charger controller to fast charge single or multiple Li-ion, NiMH and NiCd batteries, using constant current
Products ▶ Battery Management ▶ Multiple Cell Li-ion Battery Chargers ▶ RT9538
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Manufacturer U1 1 RT9525GQW RT9525GQW Single Cell Li-Ion Battery Charger WQFN-16L 4x4 RICHTEK C2 1
https://www.richtek.com/~/media/EVB PDF File/EVB_RT9525GQW/EVB_RT9525GQW-00_EN.pdf
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provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum
Products ▶ Switching Regulators ▶ Step-Up (Boost) Converters ▶ RT4813C
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Deliver 3.3V 100mA with 1 alkaline cell SOT-23-6 SOT-89-5 RT4812 1.8V-5.5V 1.8V-5.5V 2.1A
https://www.richtek.com/~/media/AN PDF/SG012_03_EN.pdf
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provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum
Products ▶ Switching Regulators ▶ Step-Up (Boost) Converters ▶ RT4813
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provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum
Products ▶ Switching Regulators ▶ Step-Up (Boost) Converters ▶ RT4813A
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