MCP1252

The MCP1252-33X50 and MCP1252-ADJ are inductorless, positive regulating, low noise charge pump DC-to-DC converters. The MCP1252-33X50 has selectable outputs of either 3.3 or 5.0 V, while the MCP1252-ADJ has an adjustable output between 1.5 and 5.5 V. Both can deliver 120 mA of load current at the selected 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. These charge pumps operateat a switching frequency of 650 kHz, and feature power saving shutdown pins, short circuit protection, thermal shutdown, and power-good pins that report out-of-regulation conditions.

Features
  • Wide 2.1 to 5.0V input range
  • Fixed, regulated 3.3 V, 5.0 V, or adjustable (1.5 to 5.5 V) outputs
  • Supplies regulated output voltages for up to 120 mA loads
  • Low 60 µA supply current in no load conditions
  • High 2.5% voltage accuracy (on fixed voltage outputs)
  • High 650 kHz operation to aoivd interference with IF bands
  • Logic level shutdown control reduces current consumption to 0.1 µA during standby operation
  • Power-good output indicator with hysteresis
  • Thermal shutdown protection with hysteresis
  • Short circuit protection
  • Soft-start circuitry to minimize inrush current
  • -40 ºC to +85 ºC operation
Parameter
Parameter Name Value Value
Typical Active Output Current (mA) 120 120
Output Voltage (V) Selectable 3.3V/5.0V, or Adjustable 1.5V to 5.5V Selectable 3.3V/5.0V, or Adjustable 1.5V to 5.5V
Typical Quiescent Current (µA) 120 120
Input Voltage Range (V) 2.1 to 5.5 2.1 to 5.5
Operating Temp. Range (°C) -45 to 85 -45 to 85
Device Description Regulated Regulated
Documents
MCP1252/53 Data SheetData Sheets08/07/2014622KB
AN1025 - Converting a 5.0V Supply Rail to a Regulated 3.0V, AN1025AppNote02/23/2006527KB
Analog & Interface Guide (Volume 2)Brochures10/11/20051067KB
Electronic Solutions for Medical and FitnessBrochures09/10/201410216KB
Intelligent Lighting Solutions BrochureBrochures04/29/20148386KB
Quick Guide to Microchip Development ToolsBrochures10/15/201411223KB
Portable Power Conversion Design GuideDesign Guides05/21/20146555KB
MCP1252 Charge Pump Backlight Demo Board FirmwareFirmware Drivers01/06/200613KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's GuideUser Guides01/24/20061367KB
MCP1252 Charge Pump Backlight Demo Board User's GuideUser Guides05/26/2005359KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP1252-33X50I/MS8MSOP-40C to +85CTUBE1.371.141.041.000.99
MCP1252-ADJI/MS8MSOP-40C to +85CTUBE1.371.141.041.000.99
MCP1252T-33X50I/MS8MSOP-40C to +85CT/R1.371.141.041.000.99
MCP1252T-ADJI/MS8MSOP-40C to +85CT/R1.371.141.041.000.99
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP1252-33X50I/MS0.0256000.0700008MSOP3x3mmMatte Tine3
MCP1252-ADJI/MS0.0256000.0700008MSOP3x3mmMatte Tine3
MCP1252T-33X50I/MS0.0256000.2156008MSOP3x3mmMatte Tine3
MCP1252T-ADJI/MS0.0256000.2156008MSOP3x3mmMatte Tine3
MCP1252/53 Data Sheet MCP1253
MCP1252/53 Data Sheet MCP1252DM-BKLT
AN1025 MCP1253
Analog & Interface Guide (Volume 2) MCP23S08
Electronic Solutions for Medical and Fitness 24VL025
Intelligent Lighting Solutions Brochure MCP2551
Quick Guide to Microchip Development Tools ENC28J60
Portable Power Conversion Design Guide MCP6295
MCP1252 Charge Pump Backlight Demo Board Firmware MCP1252DM-BKLT
Analog & Interface Product Selector Guide ENC624J600
8-Pin SOIC/MSOP/TSSOP/DIP Evaluation Board User's Guide SOIC8EV
MCP1252 Charge Pump Backlight Demo Board User's Guide MCP1252DM-BKLT