Datasheet

TPS54326
SLVSA13E –OCTOBER 2009–REVISED JUNE 2012 www.ti.com
REVISION HISTORY
Changes from Original (October 2009) to Revision A Page
• Changed the data sheet From: Product Preview To: Production Data ................................................................................ 1
Changes from Revision A (October 2009) to Revision B Page
• Changed the title to include Eco-Mode ................................................................................................................................. 1
• Changed features bullet to reference Eco-mode .................................................................................................................. 1
• Added Eco-Mode text to the DESCRIPTION ....................................................................................................................... 1
• Added the QFN package to the DESCRIPTION .................................................................................................................. 1
• Added the QFN package to the ORDERING INFORMATION table .................................................................................... 2
• Added the RGT PACKAGE drawing ..................................................................................................................................... 5
• Added the RGT 16 pin column to the PIN FUNCTIONS table ............................................................................................. 5
• Changed Functional Block Diagram ..................................................................................................................................... 6
• Added text Note to the Functional Block Diagram ................................................................................................................ 6
• Added Eco-Mode text to the OVERVIEW section ................................................................................................................ 6
• Changed section title From: Light Load Mode Control To: Light Load Eco-Mode Control ................................................... 7
• Added Eco-Mode to text in Light Load Eco-Mode Control section ....................................................................................... 7
• Added Note 1 to Table 1 ..................................................................................................................................................... 13
• Added text to the THERMAL INFORMATION section for the QFN package. .................................................................... 14
• Deleted figure "Thermal Pad Dimensions" ......................................................................................................................... 14
Changes from Revision B (June 2010) to Revision C Page
• Changed TPS54326PWPR tape and reel quantity From: 3000 To: 2000 ............................................................................ 2
• Added V
CC
, V
IN
= 12V to the condition statement in the Electrical Characteristics table ..................................................... 3
Changes from Revision C (October 2010) to Revision D Page
• Deleted quantities from Transport Media column ................................................................................................................. 2
• Changed from –45°C to 85°C to –40°C to 85°C in Ordering Information ............................................................................ 2
• Added Thermal Information table ......................................................................................................................................... 2
• Added I
O
row to the ROC table ............................................................................................................................................. 3
• Changed Functional Block Diagram ..................................................................................................................................... 6
• Changed section title From: Light Load Eco-Mode Control To: Auto-Skip Eco-Mode Control ............................................. 7
• Added Auto-Skip to text in Auto-Skip Eco-Mode Control section ......................................................................................... 7
• Changed Equation 1 ............................................................................................................................................................. 7
• Changed Power Good section text ....................................................................................................................................... 7
• Changed Current Protection section text .............................................................................................................................. 8
• Changed Design Guide information .................................................................................................................................... 12
• Changed Table 1 C4 values ............................................................................................................................................... 13
16 Copyright © 2009–2012, Texas Instruments Incorporated
Product Folder Link(s) :TPS54326