Datasheet


SLVS397C − JULY 2001 − REVISED FEBRUARY 2005
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6
INTERNAL BLOCK DIAGRAM
Falling
Edge
Deglitch
Enable
Comparator
1.2 V
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
Slow-start
(0.25 V/ms minimum)
−
+
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
L
OUT
C
O
PGND
STATUS
AGND
VBIAS
ILIM
Comparator
VIN
V
tt
RTCOMPVSENSE
ENA
TPS54672
30 mΩ
SS_DIS
REFIN
VDDQ
RELATED DC/DC PRODUCTS
D TPS54372
D TPS54972
D TPS54872