MCP1253-ADJ Datasheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifMCP1252/53 DatasheetThe MCP1253-ADJ is an inductorless, positive regulating, low noise charge pump DC-to-DC converter. It has an adjustable output of either 1.5V to 5.0V and can deliver 120mA of load current at the desired regulated output voltage. Since the device incorporates an automatic buck/boost feature, it will maintain the regulated output voltage whether the input voltage is above or below the output voltage. The MCP1252 operates at a switching frequency of 1.0MHZ and features a power-good pin that monitors out-of-regulation conditions.
Parameter NameValue
Typical Active Output Current (mA)120
Output Voltage (V)Selectable 3.3V or 5.0V
Typical Quiescent Current (µA)80
Input Voltage Range (V)2.0 to 5.5
Operating Temp. Range (°C)-45 to 85
Device DescriptionRegulated
Features
Shutdown Control to minimize current drain during stand-by conditions Logic level shutdown mode 2.0V to 5.5V input voltage range -40 C to +85 C operation Power-good output indicator with hysteresis Thermal shutdown protection with hysteresis Short circuit protection 2.1/2.7 to 5.5, 2.0 to 5.5 Selectable 3.3V or 5.0V or Adjustable 1.5V to 5.5V
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