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参数资料
| 型号： | TPS793285DBVRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 2.85 V FIXED POSITIVE LDO REGULATOR, 0.2 V DROPOUT, PDSO5 |
| 封装： | PLASTIC, SOT-23, 5 PIN |
| 文件页数： | 14/16页 |
| 文件大小： | 356K |
| 代理商： | TPS793285DBVRQ1 |
TPS79301Q1,'79318Q1, '79325Q1
'79328Q1,'793285Q1,'79330Q1
TPS79333Q1,'793475Q1
SGLS162B APRIL 2003 REVISED JUNE 2005
www.ti.com
7
TYPICAL CHARACTERISTICS
Figure 1
2.795
2.796
2.797
2.798
2.799
2.8
2.801
2.802
2.803
2.804
2.805
0
50
100
150
200
IO Output Current mA
TPS79328
OUTPUT VOLTAGE
vs
OUTPUT CURRENT
VI = 3.8 V
Co = 10 F
TJ = 25° C
Output
V
oltage
V
O
Figure 2
2.775
2.78
2.785
2.79
2.795
2.8
2.805
40 25 10 5
20 35 50 65 80 95 110 125
TJ Junction Temperature °C
TPS79328
OUTPUT VOLTAGE
vs
JUNCTION TEMPERATURE
Output
V
oltage
V
O
IO = 200 mA
IO = 1 mA
VI = 3.8 V
Co = 10 F
Figure 3
0
50
100
150
200
250
40 25 10 5
20 35 50 65 80 95 110 125
TJ Junction Temperature °C
TPS79328
GROUND CURRENT
vs
JUNCTION TEMPERATURE
Ground
Current
A
IO = 1 mA
VI = 3.8 V
Co = 10 F
IO = 200 mA
Figure 4
0
0.05
0.1
0.15
0.2
0.25
0.3
100
1 k
10 k
100 k
f Frequency Hz
IO = 1 mA
VI = 3.8 V
Co = 2.2 F
C(byp) = 0.1 F
IO = 200 mA
TPS79328
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
V/
Hz
Output
Spectral
Noise
Density
Figure 5
0
0.05
0.1
0.15
0.2
0.25
0.3
100
1 k
10 k
100 k
V/
Hz
Output
Spectral
Noise
Density
f Frequency Hz
IO = 1 mA
IO = 200 mA
TPS79328
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
VI = 3.8 V
Co = 10 F
C(byp) = 0.1 F
Figure 6
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
100
1 k
10 k
100 k
f Frequency Hz
V/
Hz
Output
Spectral
Noise
Density
TPS79328
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
VI = 3.8 V
IO = 200 mA
Co= 10 F
C(byp) = 0.1 F
C(byp) = 0.001 F
C(byp) = 0.0047 F
C(byp) = 0.01 F
Figure 7
0.001
0.01
0.1
RMS
Root
Mean
Squared
Output
Noise
ROOT MEAN SQUARED OUTPUT NOISE
vs
BYPASS CAPACITANCE
(RMS)
V
C(byp) Bypass Capacitance F
0
10
20
30
40
50
60
VO = 2.8 V
IO = 200 mA
Co = 10 F
BW = 100 Hz to 100
kHz
Figure 8
100
1 M
10
1 k
f Frequency Hz
10 k
Output
Impedance
Z
o
OUTPUT IMPEDANCE
vs
FREQUENCY
100 k
IO = 1 mA
0
0.5
1
1.5
2
2.5
0
IO = 100 mA
10 M
VI = 3.8 V
Co = 10 F
TJ = 25° C
0
20
40
60
80
100
120
140
160
180
40 25 10 5
20 35 50 65 80 95 110 125
IO = 200 mA
IO = 10 mA
VI = 2.7 V
Co = 10 F
TJ Junction Temperature °C
Dropout
V
oltage
mV
V
DO
TPS79328
DROPOUT VOLTAGE
vs
JUNCTION TEMPERATURE
Figure 9
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相关代理商/技术参数 |
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|---|---|
| TPS793285DBVT | 功能描述:低压差稳压器 - LDO High PSRR Fast RF High-Enable 200mA RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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