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¹¦ÄÜÃèÊö | Regulated 3.3V, Low-Ripple Charge Pump with Low- Operating Current SLEEP Mode or BYPASS Mode |
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MCP1256-EMFÊý¾ÝÊÖ²á¹æ¸ñÊéPDFÏêÇé
Description
The MCP1256, MCP1257, MCP1258 and MCP1259 are inductorless, positive regulated charge pump DC/DC converters. The devices generate a regulated 3.3V output voltage from a 1.8V to 3.6V input. The devices are specifically designed for applications operating from 2-cell alkaline, Ni-Cd, or Ni-MH batteries or by one primary lithium MnO2 (or similar) coin cell battery.
Features
? Inductorless 1.5x, 2x Boost DC/DC Converter
? Output Voltage: 3.3V
? High Output Voltage Accuracy:
- ¡À3.0 (VOUT Fixed)
? Output Current Up To 100 mA
? 20 mVPP Output Voltage Ripple
? Thermal Shutdown and Short Circuit Protection
? Uses Small Ceramic Capacitors
? Switching Frequency: 650 kHz
? Low-Power SLEEP Mode: MCP1256/7
? BYPASS Mode: MCP1258/9
? Low-Power Shutdown Mode: 0.1 ¦ÌA (Typical)
? Shutdown Input Compatible with 1.8V Logic
? VIN Range: 1.8V to 3.6V
? Soft-Start Circuitry to Minimize Inrush Current
? Temperature Range: -40¡ãC to +125¡ãC
? Packaging:
- 10-Pin, 3 mm x 3 mm DFN
- 10-Pin, MSOP
Applications
? Pagers
? Portable Measurement Instruments
? Home Automation Products
? PICmicro? MCU Bias
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Regulated 3.3V, Low-Ripple Charge Pump with Low- Operating Current SLEEP Mode or BYPASS Mode
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MCP1256-EMF ×ÊÁÏÏÂÔظü¶à...
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