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TPS54980PWPR 数据表(PDF) 6 Page - Texas Instruments

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部件名 TPS54980PWPR
功能描述  3-V TO 4-V INPUT 9-A OUTPUT TRACKING SYNCHRONOUS BUCK PWM SWITCHER WITH INTEGRATED FETS FOR SEQUENCING
PDF  17 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TPS54980PWPR 数据表(HTML) 6 Page - Texas Instruments

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TPS54980
SLVS452A − FEBRUARY 2003 − REVISED FEBRUARY 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
15 m
Ω
VIN
REG
VBIAS
VIN
BOOT
VIN
PH
CO
PGND
PWRGD
Falling
Edge
Deglitch
35
µs
VSENSE
SHUTDOWN
0.90 Vref
Hysteresis: 0.03 Vref
Powergood
Comparator
AGND
VBIAS
ILIM
Comparator
Core
RT
COMP
VSENSE
ENA
TPS54980
15 m
Ω
LOUT
TRACKIN
25 ns Adaptive
Dead Time
Sense
FET
VIN
I/O



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