TPS54327 3A SWIFT™ Converter



Texas Instruments TPS54327 3A SWIFT™ Converter

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

Texas 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 22µF ceramic output capacitors. As a result, output voltage ripples less than 10mV 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: 4.5V to 18V
  • Output voltage range: 0.76V to 7.0V
  • Highly efficient integrated FET's optimized for lower duty cycle applications
    – 100mΩ (high side) and 70mΩ (low side)
  • High efficiency, less than 10µA at shutdown
  • High initial bandgap reference accuracy
  • Adjustable soft start
  • Pre-biased soft start
  • 700kHz 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)
  • RoHS Compliant

Texas Instruments
Part Number
Digi-Key
Part Number
Packaging Voltage -
Input/Output
Current -
Output
Package  
TPS54327DDAR 296-28061-2-ND Tape & Reel 4.5V ~ 18V
0.76V ~ 7V
3A 8-SOIC
(0.154", 3.90mm width)
exposed pad
TPS54327 Datasheet
 296-28061-1-ND Cut Tape
 296-28061-6-ND Digi-Reel®

Evaluation Module
Photo Digi-Key
Part Number
Texas Instruments
Part Number
Description
TPS54327 (click to enlarge) 296-28143-ND TPS54327EVM-686 The TPS54327EVM-686 evaluation module is a single, synchronous buck converter providing 1.05V at 3A from 5V to 18V input.  User's Guide