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| 型號： | TPS79350 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | ULTRALOW-NOISE, HIGH PSRR, FAST RF 200-mA LOW-DROPOUT LINEAR REGULATORS(超低噪聲,200mA低壓差線性穩(wěn)壓器) |
| 中文描述： | 超低噪聲，高PSRR，快速射頻200毫安低壓差線性穩(wěn)壓器（超低噪聲，200mA的低壓差線性穩(wěn)壓器） |
| 文件頁數(shù)： | 7/14頁 |
| 文件大?。?/td> | 267K |
| 代理商： | TPS79350 |
TPS79301, TPS79318, TPS79325
TPS79328, TPS793285, TPS79330
TPS79333, TPS793475
SLVS348C
–
JULY 2001
–
REVISED APRIL 2002
7
www.ti.com
TYPICAL CHARACTERISTICS
Figure 10
10
100
1 k
10 k
10
40
80
100 k
1 M
10 M
R
–
f
–
Frequency
–
Hz
TPS79328
RIPPLE REJECTION
vs
FREQUENCY
IO = 10 mA
50
0
VI = 3.8 V
Co = 10
μ
F
C(byp) = 0.01
μ
F
IO = 200 mA
20
30
60
70
90
100
Figure 11
10
100
1 k
f
–
Frequency
–
Hz
10 k
20
60
100
100 k
1 M
10 M
R
–
TPS79328
RIPPLE REJECTION
vs
FREQUENCY
VI = 3.8 V
Co = 2.2
μ
F
C(byp) = 0.01
μ
F
IO = 10 mA
IO = 200 mA
40
70
90
30
50
80
10
0
Figure 12
10
100
1 k
f
–
Frequency
–
Hz
10 k
20
60
100
100 k
1 M
10 M
R
–
TPS79328
RIPPLE REJECTION
vs
FREQUENCY
VI = 3.8 V
Co = 2.2
μ
F
C(byp) = 0.1
μ
F
IO = 10 mA
IO = 200 mA
40
70
90
30
50
80
10
0
Figure 13
3
TPS79328
OUTPUT VOLTAGE, ENABLE VOLTAGE
vs
TIME (START-UP)
VO
t
–
Time
–
μ
s
0
60
40
20
80 100
140
120
160 180 200
–
–
VI = 3.8 V
VO = 2.8 V
IO = 200 mA
Co = 2.2
μ
F
TJ = 25
°
C
E
–
1
2
0
0
2
C(byp) = 0.0047
μ
F
C(byp) = 0.01
μ
F
4
C(byp) = 0.001
μ
F
Figure 14
TPS79328
LINE TRANSIENT RESPONSE
VO
t
–
Time
–
μ
s
0
30
20
10
40
50
70
60
80
90 100
–
–
IO = 200 mA
Co = 2.2
μ
F
C(byp) = 0.01
μ
F
VI
–
–
0
-20
3.8
dv
dt
0.4 V
s
m
20
4.8
Figure 15
t
–
Time
–
μ
s
TPS79328
LOAD TRANSIENT RESPONSE
0
0
150
100
50
200 250
350
300
400 450
20
0
–
20
VO
–
–
100
500
–
–
IO
VI = 3.8 V
Co = 10
μ
F
–
40
200
300
di
dt
0.02A
s
1mA
Figure 16
5
1s/div
POWER UP / POWER DOWN
VI
VO
VO = 3 V
RL = 15
Figure 17
100
50
0
20
40 60
IO
–
Output Current
–
mA
80 100 120
D
–
150
200
DC DROPOUT VOLTAGE
vs
OUTPUT CURRENT
250
140 160 180 200
0
TJ = 125
°
C
TJ = 25
°
C
TJ =
–
55
°
C
Figure 18
0
50
100
150
200
250
300
350
400
450
2.5
3
3.5
4
4.5
5
TPS79301
DROPOUT VOLTAGE
vs
INPUT VOLTAGE
VI
–
Input Voltage
–
V
–
–
VD
IO = 200 mA
TJ = 25
°
C
TJ =
–
40
°
C
TJ = 125
°
C
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| TPS79401DCQR | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| TPS79401DCQRG4 | 功能描述:低壓差穩(wěn)壓器 - LDO High PSRR Fast RF High-Enable 250-mA RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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