MCP1632x Synchronous Buck Regulators

Microchip's highly integrated, fixed frequency, synchronous step-down DC-DC converters

MCP1632x Synchronous Buck RegulatorsMicrochip's MCP16321/2/3 highly integrated, high-efficiency, fixed frequency, synchronous step-down DC-DC converters are available in a 16-pin QFN package which operates from input voltages up to 18 V (MCP16323) and 24 V (MCP16321/2). Integrated features include a high-side and low-side N-Channel switch, fixed frequency Peak Current Mode Control, internal compensation, peak current limit, VOUT overvoltage protection, and over-temperature protection. Minimal external components are necessary to develop a complete synchronous, step-down DC-DC converter power supply.

Features Applications
  • Up to 95% typical efficiency
  • Input voltage range: 6.0 V to 24 V
  • Output currents: 1 A (MCP16321), 2 A (MCP16322), 3 A (MCP16323)
  • Fixed output voltages: 0.9 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5 V, with 2% output voltage accuracy
  • Adjustable-version output voltage range: 0.9 V to 5 V with 1.5% reference voltage accuracy
  • Integrated N-channel high-side switch: 180 mΩ
  • Integrated N-channel low-side switch: 120 mΩ
  • 1 MHz fixed frequency Peak current mode control
  • PIC® /dsPIC® microcontroller bias supply
  • 12 V, industrial-input DC-DC conversion
  • Set-top boxes
  • DSL cable modems
  • Automotive
  • Wall cube regulation
  • SLA battery powered devices
  • AC-DC digital control power source
  • Power meters
  • Consumer
  • Medical and health care
  • Distributed power supplies

MCP16321 Series

ImageManufacturer Part NumberDescriptionAvailable Quantity
MCP16321T-150E/NG datasheet linkIC REG BUCK 1.5V 1A SYNC 16-VQFNMCP16321T-150E/NGIC REG BUCK 1.5V 1A SYNC 16-VQFN3244 - Immediate
MCP16321T-150E/NG product page link
MCP16321T-180E/NG datasheet linkIC REG BUCK 1.8V 1A SYNC 16-VQFNMCP16321T-180E/NGIC REG BUCK 1.8V 1A SYNC 16-VQFN2865 - Immediate
MCP16321T-180E/NG product page link
MCP16321T-250E/NG datasheet linkIC REG BUCK 2.5V 1A SYNC 16-VQFNMCP16321T-250E/NGIC REG BUCK 2.5V 1A SYNC 16-VQFN2088 - Immediate
MCP16321T-250E/NG product page link
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MCP16322 Series

ImageManufacturer Part NumberDescriptionAvailable Quantity
DV160214-1 datasheet linkKIT DEV DALI LIGHTING COMMDV160214-1KIT DEV DALI LIGHTING COMM5 - Immediate
DV160214-1 product page link
AC160214 datasheet linkBOARD DEV LIGHTING COMM PROTOAC160214BOARD DEV LIGHTING COMM PROTO10 - Immediate
AC160214 product page link
DM160214 datasheet linkBOARD DEV LIGHTING COMM MAINDM160214BOARD DEV LIGHTING COMM MAIN6 - Immediate
DM160214 product page link
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MCP16323 Series

ImageManufacturer Part NumberDescriptionAvailable Quantity
MCP16323T-250E/NG datasheet linkIC REG BUCK 2.5V 3A SYNC 16-VQFNMCP16323T-250E/NGIC REG BUCK 2.5V 3A SYNC 16-VQFN3298 - Immediate
MCP16323T-250E/NG product page link
MCP16323T-150E/NG datasheet linkIC REG BUCK 1.5V 3A SYNC 16-VQFNMCP16323T-150E/NGIC REG BUCK 1.5V 3A SYNC 16-VQFN3285 - Immediate
MCP16323T-150E/NG product page link
MCP16323T-180E/NG datasheet linkIC REG BUCK 1.8V 3A SYNC 16-VQFNMCP16323T-180E/NGIC REG BUCK 1.8V 3A SYNC 16-VQFN3240 - Immediate
MCP16323T-180E/NG product page link
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Evaluation Modules

ImageManufacturer Part NumberDescriptionAvailable Quantity
ADM00414 datasheet linkBOARD EVALUATION MCP16321ADM00414BOARD EVALUATION MCP163212 - Immediate
ADM00414 product page link
ADM00423 datasheet linkBOARD EVALUATION MCP16322ADM00423BOARD EVALUATION MCP163220ADM00423 product page link
ADM00427 datasheet linkBOARD EVALUATION MCP16323ADM00427BOARD EVALUATION MCP163230ADM00427 product page link
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Published: 2013-01-09