![](http://datasheet.mmic.net.cn/300000/REG1117-285_datasheet_16204618/REG1117-285_3.png)
REG1117, REG1117A
SBVS001B
3
www.ti.com
ELECTRICAL CHARACTERISTICS
At T
J
= +25
°
C, unless otherwise noted.
REG1117, REG1117A
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
REG1117-2.85
See Note 1
I
= 10mA, V
IN
= 4.85V
I
O
= 0 to 800mA, V
IN
= 4.05 to 10V
I
= 10mA, V
IN
= 5.3V
I
O
= 0 to 800mA, V
IN
= 4.8 to 10V
I
= 10mA, V
IN
= 7V
I
O
= 0 to 800mA, V
IN
= 6.5 to 10V
I
= 10mA, V
= 3.8V
I
O
= 0 to 1A, V
IN
= 3.8V to 10V
I
= 10mA, V
= 4.5V
I
O
= 0 to 1A, V
IN
= 4.5V to 10V
I
= 10mA, V
= 7V
I
O
= 0 to 1A, V
IN
= 7V to 10V
2.820
2.790
2.85
2.85
2.880
2.910
V
V
REG1117-3.3
See Note 1
3.270
3.240
3.30
3.30
3.330
3.360
V
V
REG1117-5
See Note 1
4.950
4.900
5.00
5.00
5.050
5.100
V
V
REG1117A-1.8
See Note 1
1.782
1.764
1.8
1.8
1.818
1.836
V
V
REG1117A-2.5
See Note 1
2.475
2.450
2.5
2.5
2.525
2.550
V
V
REG1117A-5
See Note 1
4.950
4.900
5.0
5.0
5.050
5.100
V
V
REFERENCE VOLTAGE
REG1117 (Adjustable)
See Note 1
I
= 10mA, V
IN
–
V
O
= 2V
I
O
= 10 to 800mA, V
IN
–
V
O
= 1.4 to 10V
I
= 10mA, V
IN
–
V
O
= 2V
I
O
= 10mA to 1A, V
IN
–
V
O
= 1.4 to 10V
1.238
1.225
1.250
1.250
1.262
1.280
V
V
REG1117A (Adjustable)
See Note 1
1.238
1.225
1.250
1.250
1.262
1.280
V
V
LINE REGULATION
REG1117-2.85
(1)
REG1117-3.3
(1)
REG1117-5
(1)
REG1117 (Adjustable)
(1)
REG1117A (Adjustable)
(1)
REG1117A-1.8
(1)
REG1117A-2.5
(1)
REG1117A-5.0
(1)
I
O
= 0, V
IN
= 4.25 to 10V
I
O
= 0, V
IN
= 4.8 to 10V
I
= 0, V
IN
= 6.5 to 15V
I
O
= 10mA, V
IN
–
V
O
= 1.5 to 13.75V
I
O
= 10mA, V
IN
–
V
= 1.5 to 13.75V
I
O
= 0, V
IN
= 3.8V to 10V
I
O
= 0, V
IN
= 4.5V to 10V
I
O
= 0, V
IN
= 7V to 15V
1
2
3
7
7
mV
mV
mV
%
%
mV
mV
mV
10
0.4
0.4
7
7
10
0.1
0.1
1
1
3
LOAD REGULATION
REG1117-2.85
(1)
REG1117-3.3
(1)
REG1117-5
(1)
REG1117
(Adjustable)
(1)(2)
REG1117A
(Adjustable)
(1)(2)
REG1117A-1.8
REG1117A-2.5
REG1117A-5
I
O
= 0 to 800mA, V
IN
= 4.25V
I
O
= 0 to 800mA, V
IN
= 4.8V
I
= 0 to 800mA, V
IN
= 6.5V
I
O
= 10 to 800mA, V
IN
–
V
O
= 3V
I
O
= 10mA to 1A, V
IN
–
V
= 3V
I
O
= 0 to 1A, V
IN
= 3.8V
I
O
= 0 to 1A, V
IN
= 4.5V
I
O
= 0 to 1A, V
IN
= 7.0V
2
3
3
10
12
15
0.4
0.4
10
10
15
mV
mV
mV
%
%
mV
mV
mV
0.1
0.1
2
2
3
DROPOUT VOLTAGE
(3)
All Models
(1)
See Note 1
REG1117 Models
(1)
REG1117A
See Note 1
I
O
= 100mA
I
O
= 500mA
I
O
= 800mA
I
O
= 1A
I
O
= 1A
1.00
1.05
1.10
1.2
1.2
1.10
1.15
1.20
1.30
1.55
V
V
V
V
V
CURRENT LIMIT
REG1117 Models
REG1117A
V
IN
–
V
O
= 5V
V
IN
–
V
O
= 5V
800
1000
950
1250
1200
1600
mA
mA
MINIMUM LOAD CURRENT
Adjustable Models
(1)(2)
V
IN
–
V
O
= 13.75V
1.7
5
mA
QUIESCENT CURRENT
Fixed-Voltage Models
(1)
V
IN
–
V
O
= 5V
4
10
mA
Adjust Pin Current
(1)(2)
vs Load Current, REG1117
(1)
vs Load Current, REG1117A
(1)
I
= 10mA, V
–
V
O
= 1.4 to 10V
I
O
= 10mA to 800mA, V
IN
–
V
= 1.4 to 10V
I
O
= 10mA to 1A, V
IN
–
V
O
= 1.4 to 10V
50
0.5
0.5
120
5
5
μ
A
μ
A
μ
A
THERMAL REGULATION
All Models
(4)
30ms Pulse
0.01
0.1
%/W
RIPPLE REJECTION
All Models
f = 120Hz, V
IN
–
V
OUT
= 3V + 1Vp-p Ripple
62
dB
TEMPERATURE DRIFT
Fixed-Voltage Models
Adjustable Models
T
J
= 0
°
C to +125
°
C
T
J
= 0
°
C to +125
°
C
0.5
2
%
%