UNISONIC TECHNOLOGIES CO., LTD
UR133/A
300/500mA LOW DROPOUT
LINEAR VOLTAGE
REGULATORS
DESCRIPTION
The UTC
UR133/A
are 300/500mA fixed output voltage low
dropout linear regulators. Wide range of available output voltage fits
most of applications. Built-in output current-limiting most
thermal-limiting provide maximal protection against any fault
conditions.
LINEAR INTEGRATED CIRCUIT
FEATURES
*Guaranteed 300/500mA output current
*Input voltage range up to 12V
*Extremely tight load regulation
*Fast transient response
*Current-limiting and Thermal-limiting
*Three-terminal adjustable or fixed 1.5V, 1.8V, 2.2V, 2.5V, 2.7V,
2.8V, 2.9V,3.0V, 3.3V, 3.5V, 3.6V, 3.7V, 4.7V, 5.0V
ORDERING INFORMATION
Ordering Number
Lead Free
UR1331L-xx-AA3-2-
UR1331L-xx-AB3-2-
UR1331L-xx-T92-2-
UR1331L-xx-T92-2-
UR1331L-xx-AE3-2-
Halogen Free
UR1331G-xx-AA3-2-
UR1331G-xx-AB3-2-
UR1331G-xx-T92-2-
UR1331G-xx-T92-2-
UR1331G-xx-AE3-2-
Package
SOT-223
SOT-89
TO-92
TO-92
SOT-23
Pin Assignment
A: GOI
B: OGI
C: GIO
D: IGO
1: GIO
3: GOI
5: OGI
6: IGO
Packing
R: Tape Reel
B: Tape Box
K: Bulk
R: Tape Reel
Note: 1.
1:
Current code: Blank: 300mA A: 500mA
2. Pin assignment: I:V
IN
(Positive Power Input) O:V
OUT
(Output) G:GND(Ground/Adjustable)
3. xx: Output Voltage, refer to Marking Information
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QW-R102-005.V
UR133/A
MARKING INFORMATION
PACKAGE
VOLTAGE
CODE
PIN
PIN 1 PIN 2 PIN 3
CODE
A
B
SOT-223
15:1.5V
18:1.8V
22:2.2V
25:2.5V
SOT-23
27:2.7V
28:2.8V
29:2.9V
30:3.0V
33:3.3V
35:3.5V
SOT-89
36:3.6V
37:3.7V
47:4.7V
50:5.0V
A D : ADJ
TO-92
C
D
G
I
I
G
O
O
D
A
B
I
G
O
G
O
G
O
I
I
C
D
1
3
5
6
A
B
C
G
I
G
G
O
I
G
O
G
I
G
I
O
G
G
O
G
I
O
O
O
I
I
O
I
I
O
G
O
O
G
I
I
LINEAR INTEGRATED CIRCUIT
MARKING
Pin Code
Voltage Code
UR133/A
XX
1
2
3
L: Lead Free
G: Halogen Free
Date Code
Pin Code
Voltage Code
UTC
UR133/A
XX□
1
2
3
L: Lead Free
G: Halogen Free
Date Code
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QW-R102-005.V
UR133/A
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
IN
LINEAR INTEGRATED CIRCUIT
RATINGS
UNIT
Input Voltage V
IN
-0.3 ~ +12
V
SOT-223
600
mW
SOT-23
295
mW
Power Dissipation
P
D
SOT-89
500
mW
TO-92
525
mW
Operating Temperature
T
OPR
-40 ~ +85
°C
Storage Temperature
T
STG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
Junction to Ambient
SOT-223
SOT-23
SOT-89
TO-92
SYMBOL
θ
JA
RATINGS
165
335
200
190
UNIT
°C/W
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(T
A
=25°C, C
IN
=1μF, C
OUT
=10μF, unless otherwise specified)
For UR133/A-1.5V, 1.8V, 2.2V, 2.5V, 2.7V, 2.8V, 2.9V, 3.0V
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
1.47
1.77
2.16
2.45
2.65
2.74
2.84
2.94
TYP
1.50
1.80
2.20
2.50
2.70
2.80
2.90
3.00
MAX
1.53
1.83
2.24
2.55
2.75
2.86
2.96
3.06
1.5
10
10
350
550
50
0.5
30
50
UNIT
V
V
V
V
V
V
V
V
V
%V
OUT
mV
mV
mA
mA
mA
PPM/°C
Output Voltage-UR133/A
V
OUT
I
L
=2mA, V
IN-
V
OUT
=1.4V
Dropout Voltage
(note 4,5)
Line Regulation
Load Regulation (Note 2)
Current Limit (Note 3)
UR133
UR133A
UR133
UR133A
UR133
UR133A
V
D
∆V
OUT
∆V
OUT
I
LIMIT
I
ST-BY
I
L
=300mA
I
L
=500mA
I
L
=2mA, V
IN
-V
OUT
=2V ~ V
IN
=9V
I
L
=2mA ~ 300mA, V
IN
-V
OUT
=2V
I
L
=2mA ~ 500mA, V
IN
-V
OUT
=2V
V
IN
-V
OUT
=2V, V
OUT
=0V
I
L
=0, V
IN
=9V
Standby Current
Output Voltage Temperature
Coefficient
5.0
150
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QW-R102-005.V
UR133/A
ELECTRICAL CHARACTERISTICS (Cont.)
LINEAR INTEGRATED CIRCUIT
For UR133/A-ADJ 3.3V, 3.5V, 3.6V, 3.7V, 4.7V, 5.0V
PARAMETER
SYMBOL
TEST CONDITIONS
ADJUSTABLE (R1=120Ω, R2=200Ω, V
OUT
=3.3V)
Reference Voltage
V
REF
V
IN
-V
OUT
=2V, I
L
=2mA
MIN
1.238
3.23
3.43
3.53
3.63
4.61
4.90
TYP
1.250
3.30
3.50
3.60
3.70
4.70
5.00
MAX
1.262
3.37
3.57
3.67
3.77
4.79
5.10
1.3
1.5
0.5
30
50
UNIT
V
V
V
V
V
V
V
V
V
%V
OUT
mV
mV
mA
mA
mA
μA
μA
μA
Output Voltage-UR133/A
V
OUT
I
L
=2mA, V
IN
-V
OUT
=1.4V
Dropout Voltage
(Notes 4, 5)
Line Regulation
Load Regulation
(Note 2)
UR133
UR133A
UR133-ADJ
UR133A-ADJ
V
D
V
D
∆V
OUT
UR133
10
∆V
OUT
10
UR133A
UR133
350
Current Limit (Note 3)
I
LIMIT
V
IN
-V
OUT
=2V, V
OUT
=0V
UR133A
550
Standby current
I
ST-BY
I
L
=0, V
IN
=12V
5.0
Adjust Pin Current
I
ADJ
V
IN
=12V
120
Adjust Pin Current
UR133
V
IN
=2.75V~12V,I
L
=1mA~300mA
5
∆I
ADJ
Change
V
IN
=2.75V~12V,I
L
=1mA~500mA
UR133A
5
Output Voltage Temperature
50
150 PPM/°C
Coefficient
Note 1: Guaranteed by design.
Note
2: Regulation is measured at constant junction temperature, using pulsed ON time.
Note
3: Current Limit is measured at constant junction temperature, using pulsed ON time.
Note
4: Dropout is measured at constant junction temperature, using pulsed ON time, and the criterion is V
OUT
inside target value±2%.
Note
5: Dropout test is skipped at the condition of V
IN
<3V.
I
L
=300mA
I
L
=500mA
I
L
=300mA
I
L
=500mA
I
L
=2mA, V
IN
-V
OUT
=2V ~ V
IN
=12V
I
L
=2mA ~ 300mA, V
IN
-V
OUT
=2V
I
L
=2mA ~ 500mA, V
IN
-V
OUT
=2V
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4 of 8
QW-R102-005.V
UR133/A
TYPICAL APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
V
IN
C
I
+
1μF
V
IN
UTC
UR133/A
V
OUT
V
OUT
C
O
10μF
+
GND
APPLICATION INFORMATION
A 10μF (or larger) capacitor is recommended between V
OUT
and GND for stability. The part may oscillate without
the capacitor. Any type of capacitor can be used, but not Aluminum electrolytics when operating below -25℃. The
capacitance may be increased without limit.
A 1μF capacitor (or larger) should be placed between V
IN
to GND.
UR133/A
ADJUSTABLE
V
IN
+
1uF
V
IN
UTC
UR133/A
ADJ
I
ADJ
R
2
V
OUT
+
V
REF
R
1
10uF
V
OUT
+
C
R
10uF
C
R
:10uF to improve ripple rejection
V
OUT
=V
REF
(1+R
2
/R
1
)+I
ADJ
*R
2
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QW-R102-005.V
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