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
Lead-free:
UR133L/UR133AL
Halogen-free:UR133G/UR133AG
ORDERING INFORMATION
Ordering Number
Packing
Package
Pin Assignment
Normal
Lead Free
Halogen Free
UR1331-xx-AA3-2-
UR1331L-xx-AA3-2- UR1331G-xx-AA3-2-
SOT-223
A: GOI
R: Tape Reel
B: OGI
UR1331-xx-AB3-2-
UR1331L-xx-AB3-2- UR1331G-xx-AB3-2-
SOT-89
B: Tape Box
C: GIO
UR1331-xx-T92-2-
UR1331L-xx-T92-2- UR1331G-xx-T92-2-
TO-92
K: Bulk
D: IGO
UR1331-xx-T92-2-
UR1331L-xx-T92-2- UR1331G-xx-T92-2-
TO-92
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.
UR133
L-xx-AB3- -
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Output Voltage Code
(5)Lead Plating
(6)Current Code
(1) B: Tape Box, K: Bulk, R: Tape Reel
(2) refer to Pin Assignment
(3) AA: SOT-223, AB3: SOT-89, T92: TO-92
(4) xx: refer to Marking Information
(5) G: Halogen Free, L: Lead Free, Blank: Pb/Sn
(6) Blank: 300mA A: 500mA
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QW-R102-005,R
UR133/A
MARKING INFORMATION
PACKAGE
VOLTAGE
CODE
PIN
PIN 1 PIN 2 PIN 3
CODE
A
B
SOT-89
15:1.5V
18:1.8V
22:2.2V
25:2.5V
27:2.7V
28:2.8V
29:2.9V
30:3.0V
33:3.3V
35:3.5V
36:3.6V
37:3.7V
47:4.7V
50:5.0V
A D : ADJ
C
D
A
B
C
D
A
B
C
D
G
O
G
I
G
O
G
I
G
O
G
I
O
G
I
G
O
G
I
G
O
G
I
G
I
I
O
O
I
I
O
O
I
I
O
O
LINEAR INTEGRATED CIRCUIT
MARKING
TO-92
SOT-223
Pin Code
Voltage Code
UR133/A
XX
1
2
3
L: Lead Free
G: Halogen Free
Date Code
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QW-R102-005,R
UR133/A
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
V
IN
LINEAR INTEGRATED CIRCUIT
RATINGS
UNIT
Input Voltage V
IN
-0.3 ~ +12
V
SOT-89
500
mW
Power Dissipation
P
D
TO-92
600
mW
SOT-223
800
mW
Operating Temperature
T
OPR
-40 ~ +125
°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 Case
Junction to Ambient
SOT-89
SOT-223
SOT-89
TO-92
SOT-223
SYMBOL
θ
JC
θ
JA
RATINGS
100
15
300
160
60
UNIT
°C/W
°C/W
°C/W
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(Ta=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
Dropout Voltage
(note 4,5)
Line Regulation
Load Regulation (Note 2)
Current Limit (Note 3)
UR133
UR133A
UR133
UR133A
UR133
UR133A
V
D
ΔV
OUT
ΔV
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
50
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
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
Standby Current
Output Voltage Temperature
Coefficient
5.0
150
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QW-R102-005,R
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)
Current Limit (Note 3)
UR133
UR133A
UR133-ADJ
UR133A-AD
J
UR133
UR133A
UR133
UR133A
V
D
V
D
ΔV
OUT
ΔV
OUT
I
LIMIT
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
V
IN
-V
OUT
=2V, V
OUT
=0V
10
10
350
550
Standby current
I
ST-BY
I
L
=0, V
IN
=12V
5.0
Adjust Pin Current
Iadj
V
IN
=12V
120
Adjust Pin Current
UR133
V
IN
=2.75V~12V,I
L
=1mA~300mA
5
ΔIadj
Change
UR133A
V
IN
=2.75V~12V,I
L
=1mA~500mA
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.
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QW-R102-005,R
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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www.unisonic.com.tw
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QW-R102-005,R
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