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參數資料
| 型號： | TPS73250DCQT |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩壓器的反向電流保護 |
| 文件頁數： | 4/18頁 |
| 文件大小： | 427K |
| 代理商： | TPS73250DCQT |
www.ti.com
ELECTRICAL CHARACTERISTICS
Over operating temperature range (T
J
= -40
°
C to +125
°
C), V
IN
= V
OUT(nom)
+ 0.5V
(1)
, I
OUT
= 10mA, V
EN
= 1.7V, and
C
OUT
= 0.1μF, unless otherwise noted. Typical values are at T
J
= 25
°
C.
TPS73201, TPS73215, TPS73216
TPS73218, TPS73225, TPS73230
TPS73233, TPS73250
SBVS037F–AUGUST 2003–REVISED SEPTEMBER 2004
PARAMETER
Input voltage range
(1)
Internal reference (TPS73201)
Output voltage range (TPS73201)
(2)
TEST CONDITIONS
MIN
1.7
1.198
V
FB
-0.5
TYP
MAX
5.5
1.210
5.5-V
DO
+0.5
UNIT
V
V
V
V
IN
V
FB
T
J
= 25
°
C
1.20
Nominal
T
J
= 25
°
C
V
+ 0.5V
≤
V
≤
5.5V;
10 mA
≤
I
OUT
≤
250mA
V
OUT(nom)
+ 0.5V
≤
V
IN
≤
5.5V
1mA
≤
I
OUT
≤
250mA
10mA
≤
I
OUT
≤
250mA
V
OUT
Accuracy
(1)
%
V
IN
, I
OUT
, and T
-1.0
±
0.5
+1.0
V
OUT
%/
V
IN
Line regulation
(1)
0.01
0.002
0.0005
%/V
V
OUT
%/
I
OUT
Load regulation
%/mA
Dropout voltage
(3)
(V
IN
= V
OUT
(nom) - 0.1V)
Output impedance in dropout
Output current limit
Short-circuit current
Reverse leakage current
(4)
(-I
IN
)
V
DO
I
OUT
= 250mA
40
150
mV
Z
O
(DO)
I
CL
I
SC
I
REV
1.7 V
≤
V
IN
≤
V
OUT
+ V
DO
V
OUT
= 0.9
×
V
OUT(nom)
V
OUT
= 0V
V
EN
≤
0.5V, 0V
≤
V
IN
≤
V
OUT
I
OUT
= 10mA (I
Q
)
I
OUT
= 250mA
V
EN
≤
0.5V, V
OUT
≤
V
IN
≤
5.5
0.25
425
300
0.1
400
650
0.02
mA
mA
μA
250
600
10
550
950
I
GND
Ground pin current
μA
I
SHDN
I
FB
Shutdown current (I
GND
)
FB pin current (TPS73201)
1
.3
μA
μA
.1
58
37
f = 100Hz, I
OUT
= 250 mA
f = 10kHz, I
OUT
= 250 mA
C
OUT
= 10μF, No C
NR
C
OUT
= 10μF, C
NR
= 0.01μF
V
OUT
= 3V, R
L
= 30
C
OUT
= 1 μF, C
NR
= 0.01 μF
Power-supply rejection ratio
(ripple rejection)
PSRR
dB
27
×
V
OUT
8.5
×
V
OUT
Output noise voltage
BW = 10Hz - 100kHz
V
N
μV
RMS
t
STR
Startup time
600
μs
V
EN
(HI)
V
EN
(LO)
I
EN
(HI)
Enable high (enabled)
Enable low (shutdown)
Enable pin current (enabled)
1.7
V
IN
0.5
0.1
V
V
μA
0
V
EN
= 5.5V
Shutdown
Reset
0.02
160
140
Temp increasing
Temp decreasing
T
SD
Thermal shutdown temperature
°
C
T
J
Operating junction temperature
-40
125
°
C
(1)
(2)
(3)
(4)
Minimum V
= V
+V
DO
or 1.7V, whichever isgreater.
TPS73201 is tested atV
= 2.5V.
V
is not measured for the TPS73214, TPS73215 orTPS73216 since minimum V
IN
=1.7V.
Fixed-voltage versions only;refer to
Applications
section for more information.
4
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