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 (f_SW)
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)

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
	296-28061-1-ND	Cut Tape
	296-28061-6-ND	Digi-Reel®

Evaluation Module

Photo	Digi-Key Part Number	Texas Instruments Part Number	Description
	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