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參數(shù)資料
| 型號： | TPS54357MPWPREP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 6.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, HTSSOP-16 |
| 文件頁數(shù)： | 6/35頁 |
| 文件大?。?/td> | 1132K |
| 代理商： | TPS54357MPWPREP |
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TYPICAL CHARACTERISTICS
0.3
0.2
0.1
0
0.1
0.2
0.3
0
0.5
1
1.5
2
2.5
3
3.5
VI = 18 V
VI = 12 V
VI = 6 V
LOAD REGULATION
IO Output Current A
Output
V
oltage
Change
%
See Figure 25
0.1
0.08
0.06
0.04
0.02
0
0.02
0.04
0.06
0.08
0.1
4
6
8
10
12
14
16
18
20
22
IO = 1.5 A
IO = 0 A
IO = 3 A
Output
V
oltage
Change
%
VI Input Voltage V
LINE REGULATION
See Figure 25
Figure 1
60
50
40
30
20
10
0
10
20
30
40
50
60
100
1 k
10 k
100 k
1 M
180
150
120
90
60
30
0
30
60
90
120
150
180
Gain
Phase
f Frequency Hz
G
Gain
dB
Phase
Degrees
MEASURED LOOP RESPONSE
See Figure 25
VI(RIPPLE) = 100 mV/div (ac coupled)
V(PH) = 5 V/div
INPUT RIPPLE VOLTAGE
Time 1
s/div
Amplitude
See Figure 25
VO(RIPPLE) = 10 mV/div (ac coupled)
V(PH) = 5 V/div
OUTPUT RIPPLE VOLTAGE
Time 1
s/div
Amplitude
See Figure 25
50
55
60
65
70
75
80
85
90
95
100
0
1
2
3
4
VI = 18 V
VI = 12 V
VI = 6 V
IO Output Current A
Efficiency
%
EFFICIENCY
vs
OUTPUT CURRENT
See Figure 25
VI = 5 V/div
VO= 2 V/div
V(PWRGD)= 2 V/div
POWER UP
Time 2 ms/div
Power
Up
Response
mV
See Figure 25
V(LSG) = 5 V/div
V(PH) = 5 V/div
GATE DRIVE VOLTAGE
Time 1
s/div
Amplitude
See Figure 25
VO = 50 mV/div (ac coupled)
I(PH) = 1 A/div
LOAD TRANSIENT RESPONSE
Time 200
s/div
Load
T
ransient
Response
mV
See Figure 25
SLVS684A – JANUARY 2007 – REVISED JULY 2009 ....................................................................................................................................................... www.ti.com
Conditions are VI = 12 V, VO = 3.3 V, fs = 500 kHz, IO = 3 A, TA = 25°C (unless otherwise noted).
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
14
Copyright 2007–2009, Texas Instruments Incorporated
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