High-performance Synchronous Buck EVM Using the TPS51220

Reference Design using part TPS51220RHB by Texas Instruments

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Manufacturer

Texas Instruments
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Multi-Output Power Supplies
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For End Products

  • Laptop
  • Notebook

Description

  • High-Performance Synchronous Buck EVM Using the TPS51220. TPS51220 is a dual peak-current mode, synchronous step-down controller with three low-dropout (LDO) regulators. It is optimized for 5V/3.3V notebook system power supplies. A 99% duty cycle operation enables designers to complete Li-ion battery applications from 2-cells to 4-cells cost effectively. The TPS51220 supports high-efficiency, fast transient response and 99% duty cycle operation. DCR current sensing provides lossless current sensing and free MOSFET selection, resistor sensing supports accurate current-sensing operation. It supports supply input voltages ranging from 4.5V to 30V and output voltages from 1V to 12V. High-current, 5V at 100am, 3.3V at 10am, on-board linear regulators have glitch-free switchover function to SMPS, and the 2V reference has a 100mA capability

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    8 to 20 V
  • Output Voltage
    3.3|5 V
  • Output Current
    6@3.3V|6@5V A
  • Topology
    Buck

Featured Parts (4)

Featured Parts
Part Number Manufacturer Type Description
G12AP NKK Switches Switch Toggle Switch Toggle ON None ON SPDT Round Lever PC Pins 0.1A 28VAC 28VDC 0.4VA PC Mount Buy
G12AP-RO NKK Switches Switch Toggle Switch Toggle ON None ON SPDT Round Lever PC Pins 0.1A 28VAC 28VDC 0.4VA PC Mount Buy
TPS51220RHBT Texas Instruments DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 333kHz 32-Pin VQFN EP T/R Buy
TPS51220RHBR Texas Instruments DC to DC Controllers DC/DC Cntrlr Dual-OUT Step Down 333kHz 32-Pin VQFN EP T/R Buy

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