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Part Number LM3350
Manufacturers National Semiconductor
Logo National Semiconductor
Description Switched Capacitor Voltage Converter
Datasheet LM3350 DatasheetLM3350 Datasheet (PDF)

  LM3350   LM3350
LM3350 Switched Capacitor Voltage Converter December 1999 LM3350 Switched Capacitor Voltage Converter General Description The LM3350 is a CMOS charge-pump voltage converter which efficiently provides a 3.3V to 5V step-up, or 5V to 3.3V step-down. The LM3350 uses four small, low cost capacitors to provide the voltage conversion. It eliminates the cost, size and radiated EMI related to inductor based circuits, or the power loss of a linear regulator. Operating power conversion efficiency greater than 90% provides ideal performance for battery powered portable systems. The architecture provides a fixed voltage conversion ratio of 3/2 or 2/3. Thus it can be used for other DC-DC conversions as well. n n n n 4.2Ω typical step-up output impedance 1.8Ω typical step-down output impedance 90% typical power conversion efficiency at 50 mA 250 nA typical shutdown current Features n Conversion of 3.3V to 5V, or 5V to 3.3V n Small Mini SO-8 package n No inductor required Applications n n n n Any .



LM335 LM3350 LM3351


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