Datasheet

TPS54310-Q1
SGLS280D − JANUARY 2005 − REVISED JUNE 2009
www.ti.com
7
FUNCTIONAL BLOCK DIAGRAM
Falling
Edge
Deglitch
Enable
Comparator
1.2 V
VIN
2.95 V
Hysteresis: 0.03
V
2.5 µs
Falling
and
Rising
Edge
Deglitch
2.5 µs
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
SHUTDOWN
SS_DIS
PWM
Comparator
OSC
Leading
Edge
Blanking
100 ns
RQ
S
Adaptive Dead-Time
and
Control Logic
SHUTDOWN
30 mΩ
VIN
REG
VBIAS
VIN
BOOT
VIN
PH
C
O
PGND
PWRGD
Falling
Edge
Deglitch
35 µs
VSENSE
SHUTDOWN
0.90 V
ref
Hysteresis: 0.03 Vref
Powergood
Comparator
AGND
VBIAS
ILIM
Comparator
3 − 6 V
V
O
FSEL
RTCOMPVSENSE
SS/ENA
TPS54310
30 mΩ
L
OUT
ADDITIONAL 3-A SWIFT DEVICES
DEVICE OUTPUT VOLTAGE DEVICE OUTPUT VOLTAGE DEVICE OUTPUT VOLTAGE
TPS54311 0.9 V TPS54313 1.5 V TPS54315 2.5 V
TPS54312 1.2 V TPS54314 1.8 V TPS54316 3.3 V
RELATED DC/DC PRODUCTS
D UCC3585—dc/dc controller
D PT5500 series—3-A plug-in modules
D TPS757XX—3-A low dropout regulator