Datasheet

TPS54229
SLVSAZ8A –SEPTEMBER 2011–REVISED MARCH 2012 www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION
(1)
TRANSPORT
T
A
PACKAGE ORDERABLE PART NUMBER PIN
MEDIA
TPS54229DDA Tube
–40°C to 85°C DDA 8
TPS54229DDAR Tape and Reel
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
VALUE
UNIT
MIN MAX
VIN, EN –0.3 20 V
VBST –0.3 26 V
VBST (10 ns transient) –0.3 28 V
Input voltage range VBST (vs SW) –0.3 6.5 V
VFB, SS –0.3 6.5 V
SW –2 20 V
SW (10 ns transient) –3 22 V
VREG5 –0.3 6.5 V
Output voltage range
GND –0.3 0.3 V
Voltage from GND to thermal pad, V
diff
–0.2 0.2 V
Human Body Model (HBM) 2 kV
Electrostatic discharge
Charged Device Model (CDM) 500 V
Operating junction temperature, T
J
–40 150 °C
Storage temperature, T
stg
–55 150 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
THERMAL INFORMATION
TPS54229
THERMAL METRIC UNITS
DDA (8 PINS)
θ
JA
Junction-to-ambient thermal resistance 45.3
θ
JCtop
Junction-to-case (top) thermal resistance 54.8
θ
JB
Junction-to-board thermal resistance 16.2
°C/W
ψ
JT
Junction-to-top characterization parameter 6.6
ψ
JB
Junction-to-board characterization parameter 16.0
θ
JCbot
Junction-to-case (bottom) thermal resistance 8.5
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Product Folder Link(s): TPS54229