參數(shù)資料
型號： TPS731XX
廠商： Texas Instruments, Inc.
元件分類： 基準(zhǔn)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(wěn)壓器的反向電流保護
文件頁數(shù)： 3/18頁
文件大?。?/td> 291K
代理商： TPS731XX
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
= 0.1
μ
F, unless otherwise noted. Typical values are at T
J
= 25
°
C.
TPS731xx
SBVS034H–SEPTEMBER 2003–REVISED OCTOBER 2006
PARAMETER
Input voltage range
(1)
Internal reference (TPS73101)
Output voltage range (TPS73101)
TEST CONDITIONS
MIN
1.7
1.198
V
FB
–0.5
TYP
MAX
5.5
1.210
UNIT
V
V
V
V
IN
V
FB
T
J
= 25
°
C
1.20
5.5 – V
DO
Nominal
T
J
= 25
°
C
V
+ 0.5V
≤
V
≤
5.5V;
10 mA
≤
I
OUT
≤
150mA
V
OUT(nom)
+ 0.5V
≤
V
IN
≤
5.5V
1mA
≤
I
OUT
≤
150mA
10mA
≤
I
OUT
≤
150mA
+0.5
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
(2)
(V
IN
= V
OUT
(nom) – 0.1V)
Output impedance in dropout
Output current limit
Short-circuit current
Reverse leakage current
(3)
(-I
IN
)
V
DO
I
OUT
= 150mA
30
100
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
= 150mA
V
≤
0.5V, V
≤
V
IN
≤
5.5
–40
°
C
≤
T
J
≤
+100
°
C
0.25
360
200
0.1
400
550
mA
mA
μA
150
500
10
550
750
I
GND
Ground pin current
μ
A
I
SHDN
Shutdown current (I
GND
)
0.02
1
μ
A
I
FB
FB pin current (TPS73101)
0.1
58
37
0.3
μ
A
f = 100Hz, I
OUT
= 150 mA
f = 10kHz, I
OUT
= 150 mA
C
OUT
= 10
μ
F, No C
NR
C
OUT
= 10
μ
F, C
NR
= 0.01
μ
F
V
OUT
= 3V, R
L
= 30
C
OUT
= 1
μ
F, C
NR
= 0.01
μ
F
Power-supply rejection ratio
(ripple rejection)
PSRR
dB
27
×
V
OUT
8.5
×
V
OUT
Output noise voltage
BW = 10Hz - 100kHz
V
N
μ
V
RMS
t
STR
Startup time
600
μ
s
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
μ
A
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)
Minimum V
= V
+ V
or 1.7V, whichever is greater.
V
is not measured for the TPS73115 (V
= 1.5V) since minimum V
= 1.7V.
Fixed-voltage versions only; refer to the
Applications
section for more information.
3
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