TPS54327 3A SWIFT™ Converter

Texas Instruments' 3A output single synchronous step down switcher with integrated FET

image of Texas Instruments' TPS54327 3A SWIFT™ ConverterTexas Instruments' TPS54327, with D-CAP2 architecture, provides better than 20µs transient response time, which is ¼ of the response time of typical current mode or voltage mode control using similar 22 µF ceramic output capacitors. As a result, output voltage ripples less than 10 mV and is achievable without compensation components and tedious loop response calculations. The TPS54327 also has a proprietary circuit that enables the device to adopt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors.

Features Applications
  • D-CAP2™ mode enables fast transient response
  • Low output ripple and allows ceramic output capacitor
  • Wide VIN input voltage range: 4.5 V to 18 V
  • Output voltage range: 0.76 V to 7.0 V
  • Highly efficient integrated FET's optimized for lower duty cycle applications
    • 100 mΩ (high side) and 70 mΩ (low side)
  • High efficiency, less than 10µA at shutdown
  • High initial bandgap reference accuracy
  • Adjustable soft start
  • Pre-biased soft start
  • 700 kHz switching frequency (fSW)
  • Cycle by cycle over current limit
  • Wide range of applications for low voltage system
    • Digital TV power supply
    • High definition Blu-ray Disc™ players
    • Networking home terminal
    • Digital set top box (STB)

TPS54327 Converter

ImageManufacturer Part NumberDescriptionPart StatusFunctionAvailable Quantity
TPS54327DDAR datasheet linkIC REG BUCK ADJ 3A SYNC 8SOPWRTPS54327DDARIC REG BUCK ADJ 3A SYNC 8SOPWRActiveStep-Down8986 - Immediate
TPS54327DDAR product page link

Evaluation Module

ImageManufacturer Part NumberDescriptionPart StatusMain PurposeAvailable Quantity
TPS54327EVM-686 datasheet linkEVAL MODULE FOR TPS54327-686TPS54327EVM-686EVAL MODULE FOR TPS54327-686ActiveDC/DC, Step Down4 - Immediate
25 - Factory Stock
TPS54327EVM-686 product page link
Published: 2011-02-03