参数资料
型号: TPS54350PWP
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 6.5 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO16
封装: GREEN, PLASTIC, HTSSOP-16
文件页数: 15/32页
文件大小: 762K
代理商: TPS54350PWP
TPS54350
SLVS456C OCTOBER 2003 REVISED OCTOBER 2004
www.ti.com
22
Figure 29
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
5 6 7 8 9 10 11 12 13141516 17 18 1920
700 kHz
600 kHz
500 kHz
400 kHz
300 kHz
200 kHz
IO > 0.5 A
MINIMUM OUTPUT VOLTAGE
vs
INPUT VOLTAGE
Minimum
Output
V
oltage
V
VI Input Voltage V
Figure 30
0
100
200
300
400
500
600
700
800
56 78 9 10 11 12 13 14 15 16 17 18 19 20
IO > 0.5 A
MAXIMUM SWITCHING FREQUENCY
vs
INPUT VOLTAGE
Maximum
Switching
Frequency
kHz
VI Input Voltage V
VO = 3.3 V
VO = 2.5 V
VO = 1.8 V
VO = 1.5 V
VO = 0.9 V
VO = 1.2 V
Figure 31
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
5 6 7 8 9 10 11 121314 15 161718 19 20
700 kHz
600 kHz
500 kHz
400 kHz
300 kHz
200 kHz
IO = 0 A
MINIMUM OUTPUT VOLTAGE
vs
INPUT VOLTAGE
Minimum
Output
V
oltage
V
VI Input Voltage V
Figure 32
0
100
200
300
400
500
600
700
800
5 6789 10 11 12 13 14 15 16 17 18 19 20
IO < 0.1 A
MAXIMUM SWITCHING FREQUENCY
vs
INPUT VOLTAGE
Maximum
Switching
Frequency
kHz
VI Input Voltage V
VO = 3.3 V
VO = 2.5 V
VO = 0.9 V
VO = 1.8 V
VO = 1.5 V
VO = 1.2 V
Figure 33
50
75
100
125
150
175
200
225
200
300
400
500
600
700
RT RESISTANCE
vs
SWITCHING FREQUENCY
RT
Resistance
k
W
Switching Frequency kHz
Figure 34
3.5
3.7
3.9
4.1
4.3
4.5
50 25
0
25
50
75
100 125 150
VIN(UVLO) START AND STOP
vs
FREE-AIR TEMPERATURE
V
I
Input
V
oltage
V
TA Free-Air Temperature 5C
TJ = 25°C
Start
Stop
Figure 35
3
4
5
6
7
8
9
10
0
5
10
15
20
25
ENABLED SUPPLY CURRENT
vs
INPUT VOLTAGE
Enabled
Supply
Current
mA
VI Input Voltage V
TJ = 25°C
fS = 500 kHz
Figure 36
0.9
1.0
1.1
1.2
1.3
0
5
10
15
20
25
DISABLED SUPPLY CURRENT
vs
INPUT VOLTAGE
Disabled
Supply
Current
mA
VI Input Voltage V
TJ = 25°C
Figure 37
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
0
5
10
15
20
25
BIAS VOLTAGE
vs
INPUT VOLTAGE
V
BIAS
Bias
V
oltage
V
VI Input Voltage V
TJ = 25°C
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