MCP16311

The MCP16311 is a compact, high-efficiency, fixed frequency PWM/PFM, synchronous step-down DC-DC converter in a 8-pin MSOP, or 2 x 3 TDFN package that operates from input voltage sources up to 30V.  Integrated features include a high-side and a low-side switch, fixed frequency Peak Current Mode Control, internal compensation, peak-current limit and overtemperature protection. The MCP16311 provides all the active functions for local DC-DC conversion, with fast transient response and accurate regulation.

Features
  • Up to 95% Efficiency
  • Input Voltage Range: 4.4V to 30V
  • 1A Output Current Capability
  • Output Voltage Range: 2.0V to 24V
  • Integrated N-Channel Low and High-Side Switches: 170mΩ, Low Side 300mΩ, High Side
  • 170mΩ, Low Side
  • 300mΩ, High Side
  • Stable Reference Voltage: 0.8V
  • Automatic Pulse Frequency Modulation/Pulse-Width Modulation (PFM/PWM) Operation: PWM Operation: 500 kHz MCP16312 provides PWM-only operation
  • MCP16312 provides PWM-only operation
  • Low Device Shutdown Current: 3 μA typical
  • Low Device Quiescent Current: 44 μA (non-switching, PFM Mode)
  • 44 μA (non-switching, PFM Mode)
  • Internal Compensation
  • Internal Soft-Start: 300 μs (EN low to high)
  • Peak Current Mode Control
  • Cycle-by-Cycle Peak Current Limit
  • Undervoltage Lockout (UVLO): 4.1V typical to start 3.6V typical to stop
  • 4.1V typical to start
  • 3.6V typical to stop
  • Overtemperature Protection
  • MSOP-8 or 2x3 TDFN-8 package
Parameter
Parameter Name Value Value
Regulator Type Step Down (Buck) Step Down (Buck)
# of Outputs 1 1
Input Voltage Range Min (V) 4.4 4.4
Input Voltage Range Max (V) 30 30
Output Voltage Range Min (V) 2 2
Output Voltage Range Max (V) 24 24
Quiescent Current (mA) typ 0.085 0.085
Switching Frequency (kHz) 500 500
Synchronous Rectifier Yes Yes
Operating Temp Range -40 to 125 -40 to 125
Automotive Rated Yes Yes
Vfb (V) 0.8 0.8
Duty Cycle Max (%) 0.94 0.94
SHUTDOWN Current (µA) (Typ) 3 3
Light Load Efficiency Mode Yes Yes
Documents
MCP16311/2 Data SheetData Sheets11/21/20141088KB
AN1960 - Using the MCP16311/2 Synchronous Buck Converter Design AnalyzerAppNote07/06/2015461KB
MCP16311 Design AnalyzerSoftware07/06/2015854KB
MCP16311/2 Synchronous Buck Converter Evaluation Board User's GuideUser Guides12/17/2013328KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
MCP16311-E/MS8MSOP-40C to +125CTUBE1.321.101.000.970.96
MCP16311T-E/MNY8TDFN-40C to +125CT/R1.321.101.000.970.96
MCP16311T-E/MS8MSOP-40C to +125CT/R1.211.010.920.890.88
相关开发工具
RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
MCP16311T-E/MS0.0256000.2156008MSOP3x3mmMatte Tine3
MCP16311-E/MS0.0256000.0700008MSOP3x3mmMatte Tine3
MCP16311T-E/MNY0.0143000.2484858TDFN2x3x0.8mmNiPdAue4
MCP16311T-E/MNYVAO0.0143000.2484858TDFN2x3x0.8mmNiPdAue4
MCP16311/2 Data Sheet MCP16312
MCP16311/2 Data Sheet ADM00467
AN1960 MCP16311
MCP16311/2 Synchronous Buck Converter Evaluation Board User's Guide ADM00467