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CP2128 Dataheets PDF



Part Number CP2128
Manufacturers CHIP
Logo CHIP
Description Low Noise Charge Pump DC/DC Converter
Datasheet CP2128 DatasheetCP2128 Datasheet (PDF)

CP2128 Product Brief DC/DC Series CP2128_PB_ENG_Rev1.0 March,2005 Regulated Charge Pump DC/DC Converters www.datasheet4u.com OVERVIEW The CP2128 are low noise, constant frequency switched capacitor voltage doublers. They produce regulated output voltage from a 2.7V to 4.5V input with up to 100mA of output current. Low external parts count make the CP2128 ideally suited for small, battery-powered application. A new charge-pump architecture maintains constant switching frequency to zero load and.

  CP2128   CP2128


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CP2128 Product Brief DC/DC Series CP2128_PB_ENG_Rev1.0 March,2005 Regulated Charge Pump DC/DC Converters www.datasheet4u.com OVERVIEW The CP2128 are low noise, constant frequency switched capacitor voltage doublers. They produce regulated output voltage from a 2.7V to 4.5V input with up to 100mA of output current. Low external parts count make the CP2128 ideally suited for small, battery-powered application. A new charge-pump architecture maintains constant switching frequency to zero load and reduces both output and input ripple. The CP2128 have thermal shutdown capability and can survive a continuous short circuit from Vout to GND. High switching frequency enables the use of small ceramic capacitors. SOT23-6L -40℃~85℃ FEATURES Low Noise Constant Frequency Operation Output Current:100mA 2MHz Switching Frequency Fixed 5V± 4% Output Vin Range: 2.7V to 4.5V Automatic soft-Start Reduces Inrush Current No Inductors Icc<1uA in Shutdown Soft Start & Switch Control VOUT 3 SHDN 1 + 2MHz Oscilator VIN Charge Pump 6 C+ 4 C- 5 2 GND Copyright ©2005 Chiphomer Technology Limited Page 1 of 1 CP2128 Product Brief DC/DC Series CP2128_PB_ENG_Rev1.0 March,2005 Regulated Charge Pump DC/DC Converters www.datasheet4u.com APPLICATIONS Cellular phones Digital Cameras MP3 Players PDAs, Handheld computers GPS Receivers TYPICAL APPLICATION 1uF CVIN C+ VOUT 100Ω 100Ω 100Ω 100Ω 100Ω 1uF CP2128 1uF SHDN GND RELATED PRODUCTS CP2126: CP2127: Step up White LED Driver, Switches at 900kHz, can drive two to four LEDs in series. Step up White LED Driver, Switches at 1200kHz, can drive two to four LEDs in series. Chiphomer Technology Limited Add: 4F, Building D, 1618 Yishan Road, Shanghai, P.R.C. Tel: +86-(0)21-64058488, 64014543 Fax: +86-(0)21-64050030 Email: [email protected] Web: www.chiphomer.com Copyright ©2005 Chiphomer Technology Limited Page 2 of 2 .


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