参数资料
型号: TPS54073PWP
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 25 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
封装: GREEN, PLASTIC, HTSSOP-28
文件页数: 23/26页
文件大小: 850K
代理商: TPS54073PWP
Falling
Edge
Deglitch
Enable
Comparator
1.2 V
VIN
2.95 V
Hysteresis: 0.03 V
2.5
s
Falling
and
Rising
Edge
Deglitch
2.5
s
VIN UVLO
Comparator
Hysteresis: 0.11 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
R
Q
S
Adaptive Dead-Time
and
Control Logic
SHUTDOWN
8 m
VIN
REG
VBIAS
PVIN
BOOT
VIN
PH
CO
PGND
PWRGD
Falling
Edge
Deglitch
35
s
VSENSE
SHUTDOWN
0.90 Vref
Hysteresis: 0.03 Vref
Power-Good
Comparator
AGND
VBIAS
ILIM
Comparator
2.2 4.0 V
VO
RT
COMP
VSENSE
SS/ENA
TPS54073
8 m
LOUT
VIN
3.0 4.0 V
SYNC
StartUp
Driver
Suppression
TYPICAL CHARACTERISTICS
250
350
450
550
650
750
40
0
25
85
125
TJ Junction Temperature °C
f
Internally
Set
Oscillator
Frequency
kHz
SYNC
≥ 2.5 V
SYNC
≤ 0.8 V
0
2
4
6
8
10
12
-40
-20
0
20
40
60
80
100
T -JunctionTemperature- C
J
o
Drain-SourceOn-S
tateResist
ance-m
W
VIN=3.6V,
PVIN=2.5V,
IO =9 A
125
0
2
4
6
8
10
12
-40
-20
0
20
40
60
80
100 125
T -JunctionTemperature- C
J
o
Drain-SourceOn-S
tateResist
ance-m
W
VIN=3.3V,
PVIN=2.5V,
IO =9 A
SLVS547 – FEBRUARY 2005 ............................................................................................................................................................................................ www.ti.com
FUNCTIONAL BLOCK DIAGRAM
DRAIN-SOURCE ON-STATE
INTERNALLY SET OSCILLATOR
RESISTANCE
FREQUENCY
vs
JUNCTION TEMPERATURE
Figure 1.
Figure 2.
Figure 3.
6
Copyright 2005, Texas Instruments Incorporated
Product Folder Link(s): TPS54073
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