Datasheet

VOUT
VIN
t-Time-2ms/div
VOUT
SS
t-Time-2ms/div
TPS54232
SLVS876C –NOVEMBER 2008–REVISED OCTOBER 2013 www.ti.com
Figure 22. TPS54232 Start Up Figure 23. TPS54232 Start-up Relative to Enable
REVISION HISTORY
Changes from Original (November 2008) to Revision A Page
• Added a new table to the Description - For additional design needs ................................................................................... 2
• Changed Changed the ABSOLUTE MAXIMUM RATINGS table, Input Voltage - EN pin max value From: 5V to 6V ........ 2
Changes from Revision A (March 2010) to Revision B Page
• Changed Figure 15 x-axis From: I
O
- Output Current - mA To: I
O
- Output Current - A ..................................................... 18
Changes from Revision B (February 2011) to Revision C Page
• Removed Swift™ from the data sheet title ........................................................................................................................... 1
• Deleted Feature Item: For SWIFT™ Documentation, See the TI Website at www.ti.com/swift ........................................... 1
• Deleted graph "Maximum Power Dissipation vs Junction Temperature " from the Supplemental Application Curves ......... 6
• Changed text From: "Where N
C
is the number of output capacitors in parallel." To: ":Where C
O
is the number of
output capacitors in parallel." Following Equation 12 ......................................................................................................... 12
• Changed Equation 25 ......................................................................................................................................................... 14
• Changed Equation 28 ......................................................................................................................................................... 15
• Changed: Switching loss: Paw = 0.5 x 10
-9
x VIN
2
x I
OUT
x Few To: Switching loss: Psw = 0.5 x 10
-9
x VIN
2
x I
OUT
x
Fsw ..................................................................................................................................................................................... 16
• Changed: Gate charge loss: P.C. = 22.8 x 10
-9
x Few To: Gate charge loss: Pgc. = 22.8 x 10
-9
x Fsw ............................ 16
20 Submit Documentation Feedback Copyright © 2008–2013, Texas Instruments Incorporated
Product Folder Links: TPS54232