DatasheetsPDF.com

LM3351

National Semiconductor
Part Number LM3351
Manufacturer National Semiconductor
Description Switched Capacitor Voltage Converter
Published Mar 22, 2005
Detailed Description LM3351 Switched Capacitor Voltage Converter December 1999 LM3351 Switched Capacitor Voltage Converter General Descript...
Datasheet PDF File LM3351 PDF File

LM3351
LM3351

Overview
LM3351 Switched Capacitor Voltage Converter December 1999 LM3351 Switched Capacitor Voltage Converter General Description The LM3351 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 LM3351 is pin for pin compatible with the LM3350 but consumes 66% less quiescent current.
The LM3351 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 n 4.
2Ω typical step-up output impedance 1.
8Ω typical step-down output impedance 95% typical power conversion efficiency at 50 mA 250 nA typical shutdown current Low quiescent current extends b...


Similar Datasheet


Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)