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-VQFN3249 - 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-VQFN2093 - 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
DM160214 datasheet linkBOARD DEV LIGHTING COMM MAINDM160214BOARD DEV LIGHTING COMM MAIN6 - Immediate
DM160214 product page link
AC160214 datasheet linkBOARD DEV LIGHTING COMM PROTOAC160214BOARD DEV LIGHTING COMM PROTO0AC160214 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 MCP163210ADM00414 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