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參數(shù)資料
| 型號： | TL5209KTTR |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 500-mA LOW-NOISE LOW-DROPOUT VOLTAGE REGULATOR WITH SHUTDOWN |
| 中文描述： | 500 - mA的低噪音低，具有關斷穩(wěn)壓器 |
| 文件頁數(shù)： | 6/22頁 |
| 文件大?。?/td> | 359K |
| 代理商： | TL5209KTTR |
www.ti.com
Electrical Characteristics
V
IN
= V
OUT
+ 1 V, C
OUT
= 4.7
μ
F, I
OUT
= 1 mA, full range T
J
= –40
°
C to 125
°
C
TL5209
500-mA LOW-NOISE LOW-DROPOUT VOLTAGE REGULATOR
WITH SHUTDOWN
SLVS581–SEPTEMBER 2006
PARAMETER
TEST CONDITIONS
T
J
MIN
–1
–2
TYP
MAX
UNIT
25
°
C
1
2
Output voltage accuracy
V
OUT
= 2.5 V for ADJ only
%
Full range
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
Full range
Full range
25
°
C
25
°
C
Full range
25
°
C
25
°
C
Full range
α
V
OUT
Output voltage temperature coefficient
40
ppm/
°
C
0.009
0.05
0.1
0.5
0.7
60
80
175
250
250
300
500
600
140
170
650
900
Line regulation
V
IN
= (V
OUT
+ 1 V) to 16 V
%/V
0.05
Load regulation
I
OUT
= 1 mA to 500 mA
(1)
%
45
I
OUT
= 1 mA
115
I
OUT
= 50 mA
V
IN
– V
OUT
Dropout voltage
(2)
mV
150
I
OUT
= 100 mA
350
I
OUT
= 500 mA
100
V
EN
≥
3 V, I
OUT
= 1 mA
μ
A
350
V
EN
≥
3 V, I
OUT
= 50 mA
I
Q
Quiescent current
1.2
2
3
V
EN
≥
3 V, I
OUT
= 100 mA
mA
8
20
25
1
3
V
EN
≥
3 V, I
OUT
= 500 mA
I
min
Minimum load current
(3)
mA
V
EN
≤
0.4 V
0.05
0.1
I
SD
Shutdown current
μ
A
V
EN
≤
0.18 V
8
Ripple rejection
f = 120 Hz
75
dB
700
900
1000
I
LIMIT
Current limit
V
OUT
= 0 V
mA
V
= 16 V, 500-mA load
pulse for t = 10 ms
V
OUT
= 2.5 V, I
= 50 mA,
C
OUT
= 2.2
μ
F, C
BYP
= 0
I
OUT
= 50 mA, C
OUT
= 2.2
μ
F,
C
BYP
= 470 pF
(5)
V
OUT
/
P
D
Thermal regulation
(4)
25
°
C
0.05
%/W
25
°
C
500
V
n
Output noise
nV/
√
Hz
25
°
C
300
25
°
C
0.4
0.18
V
EN
= logic LOW (shutdown)
V
EN
Enable logic voltage
Full range
25
°
C
V
V
EN
= logic HIGH (enabled)
2
(1)
Low duty cycle testing is used to maintain the junction temperature as close to the ambient temperature as possible. Changes in output
voltage due to thermal effects are covered separately by the thermal regulation specification.
Dropout is defined as the input to output differential at which the output drops 2% below its nominal value measured at 1-V differential.
For stability across the input voltage and temperature. For ADJ versions, the minimum current can be set by R1 and R2.
Thermal regulation is defined as the change in output voltage at a specified time after a change in power dissipation is applied,
excluding line and load regulation effects.
C
BYP
is optional and connected to the BYP/ADJ pin.
(2)
(3)
(4)
(5)
6
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