UNISONIC TECHNOLOGIES CO., LTD
UR133/A
300/500mA LOW DROPOUT
LINEAR VOLTAGE
REGULATOR
DESCRIPTION
The UTC UR133/A is a 300/500mA fixed output voltage low
dropout linear regulator. 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
*Pb-free plating product number:
UR133L/UR133AL
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
UR133①-xx-AA3-②-③
UR133①L-xx-AA3-②-③
SOT-223
A: GOI
UR133①-xx-AB3-②-③
UR133①L-xx-AB3-②-③
SOT-89
B: OGI
C: GIO
UR133①-xx-T92-②-③
UR133①L-xx-T92-②-③
TO-92
D: IGO
UR133①-xx-T92-②-③
UR133①L-xx-T92-②-③
TO-92
N
ote: 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)
Package
②
Pin Assignment
③
Packing
R: Tape Reel
T: Tube
B: Tape Box
K: Bulk
3. xx: Output Voltage, refer to Marking Information.
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QW-R102-005,N
UR133/A
MARKING INFORMATION
PACKAGE
VOLTAGE
CODE
PIN 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
PIN 1
GND
OUT
GND
IN
GND
OUT
GND
IN
GND
OUT
GND
IN
PIN 2
OUT
GND
IN
GND
OUT
GND
IN
GND
OUT
GND
IN
GND
LINEAR INTEGRATED CIRCUIT
PIN 3
IN
IN
OUT
OUT
IN
IN
OUT
OUT
IN
IN
OUT
OUT
VOLTAGE
CODE
MARKING
DATE
CODE
R133/A
1
2
3
VOLTAGE
CODE
PIN CODE
TO-92
UTC
UR133/A
VOLTAGE
CODE
PIN CODE
DATE
CODE
1
2
3
UR133/A
PIN CODE
DATE
CODE
SOT-223
1
2
3
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R102-005,N
UR133/A
ABSOLUTE MAXIMUM RATINGS
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL
V
IN
RATINGS
UNIT
Input Voltage V
IN
-0.3 ~ +12
V
SOT-89
500
Power Dissipation
P
D
mW
TO-92
600
SOT-223
800
Operating Temperature
T
OPR
-40 ~ +125
℃
℃
Storage Temperature
T
STG
-65 ~ +150
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
Thermal Resistance Junction-Case
Thermal Resistance Junction-Ambient
SOT-89
SOT-223
SOT-89
TO-92
SOT-223
SYMBOL
θ
JC
θ
JA
RATINGS
100
15
300
160
60
UNIT
℃/W
℃/W
ELECTRICAL CHARACTERISTICS
(Ta=25℃, 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
350
550
3.0
150
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
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
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 8
QW-R102-005,N
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
TYP
MAX
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
1.238 1.250 1.262
3.23 3.30 3.37
3.43 3.50 3.57
3.53 3.60 3.67
3.63 3.70 3.77
4.61 4.70 4.79
4.90 5.00 5.10
1.3
1.5
10
10
350
550
5.0
120
5
5
0.5
30
50
Dropout Voltage
(Notes 4, 5)
Line Regulation
Load Regulation
(Note 2)
Current Limit (Note 3)
Standby current
Adjust Pin Current
Adjust Pin Current
Change
UR133
UR133A
UR133-ADJ
UR133A-ADJ
UR133
UR133A
UR133
UR133A
V
D
V
D
ΔV
OUT
ΔV
OUT
I
LIMIT
I
ST-BY
Iadj
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
I
L
=0, V
IN
=12V
V
IN
=12V
V
IN
=2.75V~12V,I
L
=1mA~300mA
V
IN
=2.75V~12V,I
L
=1mA~500mA
UR133
UR133A
ΔIadj
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 8
QW-R102-005,N
UR133/A
TYPICAL APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
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
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R102-005,N
stm32/stm8
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