參數(shù)資料
型號(hào): TPS54980PWP
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 16 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28
封裝: GREEN, PLASTIC, HTSSOP-28
文件頁數(shù): 4/21頁
文件大?。?/td> 568K
代理商: TPS54980PWP
TPS54980
SLVS452A FEBRUARY 2003 REVISED FEBRUARY 2005
www.ti.com
12
PERFORMANCE GRAPHS
Figure 12
50
55
60
65
70
75
80
85
90
95
100
0
246
8
10
IO Output Current A
Efficiency
%
EFFICIENCY
vs
OUTPUT CURRENT
VI = 3.3 V
Figure 13
1.79
1.792
1.794
1.796
1.798
1.8
1.802
1.804
1.806
1.808
1.81
02
4
6
8
10
IO Output Current A
Output
V
oltage
V
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
VI = 3.3 V
V
O
Figure 14
1.79
1.792
1.794
1.796
1.798
1.8
1.802
1.804
1.806
1.808
1.81
3
3.25
3.5
3.75
4
IO = 9 A
IO = 4.5 A
IO = 0 A
VI Input Voltage V
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
Output
V
oltage
V
O
Figure 15
60
50
40
30
20
10
0
10
20
30
40
50
60
180
150
120
90
60
30
0
30
60
90
120
150
180
Phase
Gain
f Frequency Hz
Gain
dB
LOOP RESPONSE
Phase
Degrees
VI = 5 V,
IO = 0 A,
fS = 700 kHz
100
1 k
10 k
100 k
1 M
Figure 16
25
35
45
55
65
75
85
95
105
115
125
Ambient
T
emperature
AMBIENT TEMPERATURE
vs
LOAD CURRENT(1)
C°
IO Output Current A
02468
10
12
14
16
fs = 700 kHz,
TJ = 125°C,
VI = 3.3 V,
VO = 1.8 V
Figure 17
OUTPUT AND INPUT RIPPLE
10
mV/div
2
V/div
50
mV/div
t Time 1
s/div
Figure 18
LOAD TRANSIENT RESPONSE
20
mV/div
2
V/div
t Time 100
s/div
I = 2.25 A to 6.75 A
Figure 19
START-UP TIMING
1
V/div
t Time 1 ms/div
5
V/div
5
V/div
VIO
V(core)
PWRGD(I/O)
PWRGD(CORE)
Figure 20
POWER DOWN TIMING
1
V/div
t Time 100 ms/div
5
V/div
5
V/div
VIO
V(core)
PWRGD(I/O)
PWRGD(CORE)
(1) Safe operating area is applicable to the test board conditions in the Dissipation Ratings
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