Datasheet

TPS2421-1
TPS2421-2
www.ti.com SLUS907H –JANUARY 2009–REVISED JANUARY 2014
REVISION HISTORY
Changes from Revision A (March 2009) to Revision B Page
• Changed MARKING .............................................................................................................................................................. 2
• Added For the most current package and ordering information, see the Package Option Addendum at the end of
this document, or visit the device product folder on www.ti.com. ......................................................................................... 2
Changes from Revision B (June 2010) to Revision C Page
• Changed T
SD
(ms) column in Table 3. (the table was deleted in revision F) ...................................................................... 14
Changes from Revision C (July 2010) to Revision D Page
• Added Feature: UL Listed - File Number E169910 .............................................................................................................. 1
Changes from Revision D (August 2010) to Revision E Page
• Changed equation 3 from RIFLT to RISET and IFAULT to ISET ......................................................................................... 7
• Changed RFLT to RSET ....................................................................................................................................................... 8
Changes from Revision E (September 2011) to Revision F Page
• Changed C
CT
values From: MIN = 100 pF/µF To 0.1 nF and MAX From: 10 pF/µF To: -- in the RECOMMENDED
OPERATING CONDITIONS table ........................................................................................................................................ 2
• Added R
RSET
to the RECOMMENDED OPERATING CONDITIONS table ........................................................................... 2
• Changed the conditions statement of the ELECTRICAL CHARACTERISTICS table .......................................................... 3
• Changed the TEST CONDITIONS for R
ON
........................................................................................................................... 3
• Changed I
LIM
/ I
FLT
To: I
LIM
/ I
SET
............................................................................................................................................ 3
• Changed the conditions statement of the ELECTRICAL CHARACTERISTICS table .......................................................... 4
• Changed the PIN DESCRIPTION section ............................................................................................................................ 6
• Changed the APPLICATION INFORMATION SECTION. .................................................................................................. 13
Changes from Revision F (April 2013) to Revision G Page
• Deleted I
SET
, C
T
Voltage from the ABSOLUTE MAXIMUM RATINGS table ........................................................................ 2
Changes from Revision G (May 2013) to Revision H Page
• Deleted minimum voltage from voltage range in the document title, features list and description ...................................... 1
• Added 5-A to document title ................................................................................................................................................. 1
• Changed listed to recognized in UL FEATURES bullet, also added specific UL number .................................................... 1
• Added SSDs, PCIE, and Fan Control to the APPLICATIONS list ........................................................................................ 1
• Added maximum-UV turn-on threshold of 2.9 V sentence to the first paragraph of the DESCRIPTION ............................. 1
• Deleted capacitor, C
VIN
, and diode from the Typical Application image. Also changed R
SET
to R
RSET
and C
OUT
to
C
LOAD
. Removed voltage range and changed OUT to VOUT. Also removed note on the former C
OUT
stating that this
is only required in systems with lead and/or load inductance .............................................................................................. 1
• Changed C
OUT
to C
LOAD
and R
SET
to R
RSET
throughout document ........................................................................................ 1
• Changed C
OUT
to C
VOUT
for the power limit parameter in the ELECTRICAL CHARACTERISTICS table ............................ 3
• Changed current limit value of the ISET description from 125% to 150% in the TERMINAL FUNCTIONS table. Also
removed TPS2421 only text form this description ................................................................................................................ 6
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Product Folder Links: TPS2421-1 TPS2421-2