Datasheet

Falling
Edge
Deglitch
Enable
Comparator
1.2V
VIN
2.95V
Hysteresis:0.03V
2.5 sm
2.5 sm
Falling
and
Rising
Edge
Deglitch
VINUVLO
Comparator
Hysteresis:0.16V
Internal/External
Slow-start
(InternalSlow-startTime=3.35ms
Reference
VREF=0.891V
−
+
Error
Amplifier
Thermal
Shutdown
150 C
o
SHUTDOWN
SS DIS_
PWM
Comparator
OSC
Leading
Edge
Blanking
100ns
R Q
S
AdaptiveDead-Time
and
ControlLogic
SHUTDOWN
59mW
VIN
REG
VBIAS
VIN
BOOT
VIN
PH
C
O
PGND
PWRGD
Falling
Edge
Deglitch
35 sm
VSENSE
SHUTDOWN
0.90V
ref
Hysteresis:0.03V
ref
Powergood
Comparator
AGND
VBIAS
ILIM
Comparator
3V − 6V
V
O
SYNC
RT
COMPVSENSE
SS/ENA
TPS54317
59mW
L
OUT
TPS54317
SLVS619B –NOVEMBER 2005–REVISED SEPTEMBER 2009 ..................................................................................................................................... www.ti.com
FUNCTIONAL BLOCK DIAGRAM
ADDITIONAL 3-A SWIFT DEVICES
DEVICE OUTPUT VOLTAGE DEVICE OUTPUT VOLTAGE
TPS54310 Adjustable TPS54372 DDR/Adjustable
TPS54380 Sequencing/Adjustable TPS54373 Prebias/Adjustable
RELATED DC/DC PRODUCTS
• TPS40007 – dc/dc controller
• PTH0407W – 3-A plug-in module
• UC282-ADJ – 3-A low dropout regulator
6 Submit Documentation Feedback Copyright © 2005–2009, Texas Instruments Incorporated
Product Folder Link(s): TPS54317