參數(shù)資料
型號: TPS74812DRCT
廠商: Texas Instruments, Inc.
英文描述: 1.5A LDO Linear Regulator with Programmable Soft-Start
中文描述: 1.5A的LDO線性穩(wěn)壓器,具有可編程軟啟動
文件頁數(shù): 7/19頁
文件大?。?/td> 351K
代理商: TPS74812DRCT
www.ti.com
200
180
160
140
120
100
80
60
40
20
0
0
1.5
1.0
0.5
2.0
2.5
3.0
3.5
4.0
V
(
)
D
I
O
(
V
-
V
V
-
BIAS
OUT
(V)
4.5
+125 C
°
+25 C
°
-
°
40 C
I
= 0.5A
OUT
2200
2000
1800
1600
1400
1200
1000
800
600
0
0.5
1.0
V
(
-
B
D
V
)
O
I
(A)
OUT
1.5
+125 C
°
+25 C
°
-
°
40 C
90
70
60
50
40
30
20
10
0
10
100
1k
10k
100k
1M
P
Frequency (Hz)
10M
V
V
V
C
= 1.8V
= 1.2V
OUT
= 5V
BIAS
= 1nF
SS
IN
I
= 0.5A
OUT
I
= 0.1A
OUT
I
= 1.5A
OUT
80
90
80
70
60
50
40
30
20
10
0
10
100
1k
10k
100k
1M
P
Frequency (Hz)
10M
V
V
C
= 1.8V
= 1.2V
OUT
= 1nF
SS
IN
I
= 100mA
OUT
I
= 1.5A
OUT
90
80
70
60
50
40
30
20
10
0
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
P
V
V
-
IN
OUT
(V)
2.25
1kHz
10kHz
100kHz
500kHz
V
OUT
= 1.2V
I
OUT
= 1.5A
C
SS
= 1nF
1
0.1
0.01
100
1k
10k
O
m
V
)
H
Frequency (Hz)
100k
C
= 1nF
SS
C
= 0nF
SS
C
= 10nF
SS
I
V
= 100mA
= 1.2V
OUT
OUT
TPS74801
SBVS074–JANUARY 2007
TYPICAL CHARACTERISTICS (continued)
At T
= +25
°
C, V
= V
OUT(TYP)
+ 0.3V, V
BIAS
= 5V, I
OUT
= 50mA, V
EN
= V
IN
, C
IN
= 1
μ
F, C
BIAS
= 4.7
μ
F, and C
OUT
= 10
μ
F,
unless otherwise noted.
V
DROPOUT VOLTAGE vs
(V
BIAS
– V
OUT
) AND TEMPERATURE (T
J
)
V
BIAS
DROPOUT VOLTAGE vs
I
OUT
AND TEMPERATURE (T
J
)
Figure 9.
Figure 10.
V
BIAS
PSRR vs FREQUENCY
V
IN
PSRR vs FREQUENCY
Figure 11.
Figure 12.
V
IN
PSRR vs (V
IN
– V
OUT
)
NOISE SPECTRAL DENSITY
Figure 13.
Figure 14.
7
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