Datasheet
TPS54680
SLVS429B − OCTOBER 2002 − REVISED OCTOBER 2005
www.ti.com
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
Multiplexer
Reference
−
+
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
Core
RTCOMPVSENSE
ENA
TPS54680
30 mΩ
L
OUT
TRACKIN
25 ns Adaptive
Dead Time
sense Fet
VIN
I/O
ADDITIONAL 6A SWIFT™ DEVICES, (REFER TO SLVS397 AND SLVS400)
DEVICE OUTPUT VOLTAGE DEVICE OUTPUT VOLTAGE DEVICE OUTPUT VOLTAGE
TPS54611 0.9 V TPS54614 1.8 V TPS54672 Active terminal
TPS54612 1.2 V TPS54615 2.5 V TPS54610 Adjustable
TPS54613 1.5 V TPS54616 3.3 V
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