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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： | 7/26页 |
| 文件大小： | 850K |
| 代理商： | TPS54073PWP |
PERFORMANCE GRAPHS
10
1M
Gain
-60
60
Phase-
o
-180
180
-50
-40
-30
-20
-10
0
10
20
30
40
50
-150
-120
-90
-60
-30
0
30
60
90
120
150
100
1k
10k
100k
Phase
Gain
f-Frequency-Hz
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0
2
4
6
8
10
12
14
I-OutputCurrent- A
O
OutputV
olt
ageV
ariation-%
-0.3
-0.25
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
2.2 2.4 2.6
2.8
3
3.2 3.4
3.6 3.8
4
IO =0 A
IO =7 A
IO =14 A
OutputV
olt
ageV
ariation-%
VO -OutputVoltage-V
t-Time=500ns/div
V
(RIPPLE)=10mV/div(accoupled)
O
I
=14 A
O
V
=2V/div
(PH)
t-Time=500ns/div
PVIN(RIPPLE)=100mV/div
(accoupled)
I
=14 A
O
V
=2V/div
(PH)
50
55
60
65
70
75
80
85
90
95
0
2
4
6
8
10
12
14
16
Efficiency-%
I-OutputCurrent- A
O
t- Time =500nsec/div
V
=1V/div
(PH)
I =500mA/div(accoupled)
O
t-Time=250 s/div
m
V (RIPPLE)=50mV/div(accoupled)
O
I
=5 A/div
O
t-Time=5ms/div
V(SS/ENA)=500mV/div
V
=500mV/div
O
www.ti.com ............................................................................................................................................................................................ SLVS547 – FEBRUARY 2005
The performance data for Figure 14 through Figure 22 are for the circuit in Figure 12. Conditions are PVIN = 2.5
V, VIN = 3.3 V, VO = 1.5 V, fs = 700 kHz, and IO = 7 A, TA = 25°C, unless otherwise specified.
MEASURED LOOP RESPONSE
LOAD REGULATION
LINE REGULATION
vs
FREQUENCY
OUTPUT CURRENT
INPUT VOLTAGE
Figure 14.
Figure 15.
Figure 16.
EFFICIENCY
vs
OUTPUT CURRENT
INPUT RIPPLE VOLTAGE
OUTPUT VOLTAGE RIPPLE
Figure 17.
Figure 18.
Figure 19.
START-UP WAVEFORM
OUTPUT INDUCTOR
LOAD TRANSIENT RESPONSE
WITH PRECHARGE
RIPPLE CURRENT
Figure 20.
Figure 21.
Figure 22.
Copyright 2005, Texas Instruments Incorporated
15
Product Folder Link(s): TPS54073
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