UNISONIC TECHNOLOGIES CO., LTD
UR133/A LINEAR INTEGRATED CIRCUIT
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Copyright © 2012 Unisonic Technologies Co., Ltd QW-R102-005,S
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.
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 Package d
Pin Assignment Packing
Lead Free Halogen Free
UR1331L-xx-AA3-2-e UR1331G-xx-AA3-2-e SOT-223
A: GOI
B: OGI
C: GIO
D: IGO
R: Tape Reel
B: Tape Box
K: Bulk
UR1331L-xx-AB3-2-e UR1331G-xx-AB3-2-e SOT-89
UR1331L-xx-T92-2-e UR1331G-xx-T92-2-e TO-92
UR1331L-xx-T92-2-e UR1331G-xx-T92-2-e TO-92
Note: 1. 1: Current code: Blank: 300mA A: 500mA
2. Pin assignment: I:VIN(Positive Power Input) O:VOUT(Output) G:GND(Ground/Adjustable)
3. xx: Output Voltage, refer to Marking Information.
UR133/A LINEAR INTEGRATED CIRCUIT
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MARKING INFORMATION
PACKAGE VOLTAGE
CODE
PIN
CODE PIN 1 PIN 2 PIN 3 MARKING
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
AD:ADJ
A G O I
B O G I
C G I O
D I G O
TO-92
A G O I
B O G I
C G I O
D I G O
SOT-223
A G O I
B O G I
C G I O
D I G O
UR133/A LINEAR INTEGRATED CIRCUIT
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ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VIN V
IN -0.3 ~ +12 V
Power Dissipation
SOT-89
PD
500 mW
TO-92 600 mW
SOT-223 800 mW
Operating Temperature TOPR -40 ~ +85 °C
Storage Temperature TSTG -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 SYMBOL RATINGS UNIT
Junction to Case SOT-89 θJC 100 °C/W
SOT-223 15 °C/W
Junction to Ambient
SOT-89
θJA
300 °C/W
TO-92 160 °C/W
SOT-223 60 °C/W
ELECTRICAL CHARACTERISTICS (TA=25°C, CIN=1μF, COUT=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 TYP MAX UNIT
Output Voltage-UR133/A VOUT I
L=2mA, VIN-VOUT=1.4V
1.47 1.50 1.53 V
1.77 1.80 1.83 V
2.16 2.20 2.24 V
2.45 2.50 2.55 V
2.65 2.70 2.75 V
2.74 2.80 2.86 V
2.84 2.90 2.96 V
2.94 3.00 3.06 V
Dropout Voltage
(note 4,5)
UR133 VD IL=300mA 1.5 V
UR133A IL=500mA
Line Regulation ΔVOUT I
L=2mA, VIN-VOUT=2V ~ VIN=9V 0.5 %VOUT
Load Regulation (Note 2) UR133 ΔVOUT IL=2mA ~ 300mA, VIN-VOUT =2V 10 30 mV
UR133A IL=2mA ~ 500mA, VIN-VOUT =2V 10 50 mV
Current Limit (Note 3) UR133 ILIMIT V
IN-VOUT=2V, VOUT=0V 350 mA
UR133A 550 mA
Standby Current IST-BY I
L=0, VIN=9V 5.0 mA
Output Voltage Temperature
Coefficient 50 150 PPM/°C
UR133/A LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS(Cont.)
For UR133/A-ADJ 3.3V, 3.5V, 3.6V, 3.7V, 4.7V, 5.0V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
ADJUSTABLE (R1=120Ω, R2=200Ω, VOUT=3.3V)
Reference Voltage VREF V
IN-VOUT=2V, IL=2mA 1.238 1.250 1.262 V
Output Voltage-UR133/A VOUT I
L=2mA, VIN-VOUT=1.4V
3.23 3.30 3.37 V
3.43 3.50 3.57 V
3.53 3.60 3.67 V
3.63 3.70 3.77 V
4.61 4.70 4.79 V
4.90 5.00 5.10 V
Dropout Voltage
(Notes 4, 5)
UR133 VD IL=300mA 1.3 V
UR133A IL=500mA
UR133-ADJ VD IL=300mA 1.5 V
UR133A-ADJ IL=500mA
Line Regulation ΔVOUT I
L=2mA, VIN-VOUT=2V ~ VIN=12V 0.5 %VOUT
Load Regulation
(Note 2)
UR133 ΔVOUT IL=2mA ~ 300mA, VIN-VOUT =2V 10 30 mV
UR133A IL=2mA ~ 500mA, VIN-VOUT =2V 10 50
mV
Current Limit (Note 3) UR133 ILIMIT V
IN-VOUT=2V, VOUT=0V 350 mA
UR133A 550 mA
Standby current IST-BY I
L=0, VIN=12V 5.0 mA
Adjust Pin Current IADJ V
IN=12V 120
μA
Adjust Pin Current
Change
UR133 ΔIADJ VIN=2.75V~12V,IL=1mA~300mA 5
μA
UR133A VIN=2.75V~12V,IL=1mA~500mA 5
μA
Output Voltage Temperature
Coefficient 50 150 PPM/°C
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 VOUT
inside target value±2%.
Note 5: Dropout test is skipped at the condition of VIN<3V.
UR133/A LINEAR INTEGRATED CIRCUIT
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TYPICAL APPLICATION CIRCUIT
UTC
UR133/A
VOUT
GND
VIN
CO
10μF
CI
1μF
VIN VOUT
++
APPLICATION INFORMATION
A 10μF (or larger) capacitor is recommended between VOUT 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 VIN to GND.
UR133/A ADJUSTABLE
UTC
UR133/A
++
VREF R1
R2
10uF1uF
VOUT
VIN
10uF
CR
CR:10uF to improve ripple rejection
VOUT=VREF(1+R2/R1)+IADJ*R2
IADJ
+
VIN VOUT
ADJ
UR133/A LINEAR INTEGRATED CIRCUIT
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TYPICAL CHARACTERISTICS
UR133/A LINEAR INTEGRATED CIRCUIT
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TYPICAL CHARACTERISTICS(Cont.)
UR133/A LINEAR INTEGRATED CIRCUIT
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UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
