MCP1603

The MCP1603 is a high efficiency fully integrated 500 mA 2.0 MHz synchronous buck regulator ideally suited for Li-Ion/NiMH Battery powered application powered. At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution. When the load is reduced to light levels, the MCP1603 automatically changes operation to a PFM mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation allow the MCP1603 to achieve the highest efficiency over the entire operating current range.

Features
  • Small packages: TSOT-23 and 2x3 DFN
  • PWM/PFM automatic transistion
  • Over current and temperature protection
  • Automatic PWM/PFM mode transition
  • Eff. 90%, Shutdown Current 100 nA
  • Small passives 4.5 microhenry, 4.5 microfarad
Parameter
Parameter Name Value Value
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 2.7 2.7
Input Voltage Range Max (V) 5.5 5.5
Output Voltage Range Min (V) 0.8 0.8
Output Voltage Range Max (V) 4.5 4.5
Quiescent Current (mA) typ 0.045 0.045
Switching Frequency (kHz) 2000 2000
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 85 -40 to 85
Vfb (V) 0.8 0.8
Duty Cycle Max (%) 1 1
SHUTDOWN Current (µA) (Typ) 0.1 0.1
Light Load Efficiency Mode Yes Yes
Documents
MCP1603 DatasheetData Sheets11/10/2012775KB
Analog Solutions for Automotive Applications Design GuideBrochures12/08/2009284KB
Automotive Recommended Product Selector GuideBrochures09/16/20147598KB
Low Power Analog SolutionsSell Sheets05/16/2011120KB
Analog & Interface Product Selector GuideProduct Line Card03/21/20164116KB
MCP1603 Tiny Reference Design (User's Guide)User Guides11/12/2008265KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP1603-120I/MC8DFN-40C to +85CTUBE1.060.880.800.770.76
MCP1603-150I/MC8DFN-40C to +85CTUBE1.060.880.800.770.76
MCP1603-180I/MC8DFN-40C to +85CTUBE1.060.880.800.770.76
MCP1603-250I/MC8DFN-40C to +85CTUBE1.060.880.800.770.76
MCP1603-330I/MC8DFN-40C to +85CTUBE1.060.880.800.770.76
MCP1603-ADJI/MC8DFN-40C to +85CTUBE1.060.880.800.770.76
MCP1603BT-180I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603BT-330I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603BT-ADJI/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603T-120I/MC8DFN-40C to +85CT/R1.060.880.800.770.76
MCP1603T-120I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603T-150I/MC8DFN-40C to +85CT/R1.060.880.800.770.76
MCP1603T-150I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603T-180I/MC8DFN-40C to +85CT/R1.060.880.800.770.76
MCP1603T-180I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603T-250I/MC8DFN-40C to +85CT/R1.060.880.800.770.76
MCP1603T-250I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603T-330I/MC8DFN-40C to +85CT/R1.060.880.800.770.76
MCP1603T-330I/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
MCP1603T-ADJI/OS5TSOT-40C to +85CT/R0.980.820.740.720.71
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP1603T-330I/MC0.0170000.1306068DFN2x3x0.9mmMatte Tine3
MCP1603-120I/MC0.0170000.0333338DFN2x3x0.9mmMatte Tine3
MCP1603-330I/MC0.0170000.0333338DFN2x3x0.9mmMatte Tine3
MCP1603-250I/MC0.0170000.0333338DFN2x3x0.9mmMatte Tine3
MCP1603T-250I/MC0.0170000.1306068DFN2x3x0.9mmMatte Tine3
MCP1603-150I/MC0.0170000.0333338DFN2x3x0.9mmMatte Tine3
MCP1603-180I/MC0.0170000.0333338DFN2x3x0.9mmMatte Tine3
MCP1603T-180I/MC0.0170000.1306068DFN2x3x0.9mmMatte Tine3
MCP1603-ADJI/MC0.0170000.0333338DFN2x3x0.9mmMatte Tine3
MCP1603T-120I/MC0.0170000.1306068DFN2x3x0.9mmMatte Tine3
MCP1603T-150I/MC0.0170000.1306068DFN2x3x0.9mmMatte Tine3
MCP1603T-ADJI/MC0.0170000.1306068DFN2x3x0.9mmMatte Tine3
MCP1603LT-120I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603T-120I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603T-180I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603LT-180I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603T-250I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603LT-150I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603LT-250I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603LT-330I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603T-330I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603LT-ADJI/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603T-150I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603T-ADJI/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603BT-330I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603BT-180I/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603BT-ADJI/OS0.0128000.0333335TSOT-Matte Tine3
MCP1603 Datasheet MCP1603
MCP1603 Datasheet MCP1603EV
Analog Solutions for Automotive Applications Design Guide MCP2022
Automotive Recommended Product Selector Guide MCP23S09
Low Power Analog Solutions MCP3551
Analog & Interface Product Selector Guide ENC624J600
MCP1603 Tiny Reference Design (User's Guide) MCP1603
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