UTC UR133/A LINEAR INTEGRATED CIRCUIT
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.
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 , 3.7V ,
4.7V , 5.0V
APPLICATIONS
*Voltage regulator for LAN Card, CD-ROM, and DVD
*Wireless communication systems
PIN DESCRIPTION
NAME FUNCTION
VOUT Output
GND Ground/Adjustable
VIN Positive Power Input
1
1
SOT-89
1
2
3
SOT-223
TO-92
UTC UNISONIC TECHNOLOGIES CO., LTD. 1
QW-R102-005,I
UTC UR133/A LINEAR INTEGRATED CIRCUIT
MARKING INFORMATION
PACKAGE VOLTAGE
CODE
15:1.5V
18:1.8V
SOT-89
TO-92
SOT-223
22:2.2V
25:2.5V
27:2.7V
28:2.8V
29:2.9V
30:3.0V
33:3.3V
35:3.5V
37:3.7V
47:4.7V
50:5.0V
AD:
ADJUSTABLE
ABSOLUTE MAXIMUM RATINGS
Input Voltage Vin -0.3 12 V
Operating Junction Temperature Range -40 125
Storage Temperature Range -65 150
Power Dissipation
SOT-89
Thermal Resistance, ROJC=100°C/W
Thermal Resistance, R
TO-92
Thermal Resistance, R
SOT-223
Thermal Resistance, ROJC=15°C/W
Thermal Resistance ROJA=60°C/W (est)
PARAMETER MIN. TYP. MAX. UNIT
PIN CODE PIN 1 PIN 2 PIN 3 MARKING
A GND OUT IN
B OUT GND IN
C GND IN OUT
D IN GND OUT
A GND OUT IN
B OUT GND IN
C GND IN OUT
D IN GND OUT
A GND OUT IN
B OUT GND IN
C GND IN OUT
D IN GND OUT
DATE
CODE
VOLTAGE
CODE
VOLTAGE
CODE
R133/A
123
UTC
UR133/A
123
UR133/A
123
OJA=300°C/W
OJA=160°C/W
0.50
0.60
0.80
W
VOLTAGE
CODE
PIN CODE
PIN CODE
DATE
CODE
PIN CODE
DATE
CODE
°C
°C
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R102-005,I
UTC UR133/A LINEAR INTEGRATED CIRCUIT
UTC UR133/A 1.5V, 1.8V, 2.2V, 2.5V, 2.7V, 2.8V, 2.9V,3.0V
ELECTRICAL CHARACTERISTICS
Output Voltage UR133/A
Output Voltage Temperature
Coefficient
Line Regulation IL=1mA, VIN-Vout=2V~Vin=9V 0.5 %VOUT
Load Regulation (note 2) UR133
UR133A
Current Limit (note 3)
UR133
UR133A
Dropout Voltage (note 4,5) 1.5 V
Standby current IL=0, VIN=9V
PARAMETER TEST CONDITIONS MIN TYP. MAX UNITS
IL=1mA, VIN-VOUT=1.4V 1.47
50 150
IL=1mA~300mA, VIN-Vout =2V
IL=1mA~500mA, VIN-Vout =2V
VIN-Vout=2V, VOUT=0V
UTC UR133/A ADJ 3.3V, 3.5V, 3.7V, 4.7V, 5.0V
ELECTRICAL CHARACTERISTICS (Ta=25°C, CIN=1µF, COUT=10µF, unless otherwise specified)
Adjustable (R1=120Ω,R2=200Ω,Vout=3.3V)
Reference Voltage Vin-Vo=2V, IL=1mA 1.238 1.250 1.262 V
Output Voltage UR133/A
Output Voltage Temperature
Coefficient
Line Regulation IL=1mA, VIN-Vout=2V~Vin=12V 0.5 %VOUT
Load Regulation (note 2) UR133
UR133A
Current Limit (note 3)
UR133
UR133A
Dropout Voltage (note 4,5) 1.3 V
Standby current IL=0, VIN=12V
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
Note 5: Dropout test is skipped at the condition of VIN<3V.
PARAMETER TEST CONDITIONS MIN TYP. MAX UNITS
IL=1mA, VIN-VOUT=1.4V 3.23
50 150
IL=1mA~300mA, VIN-Vout =2V
IL=1mA~500mA, VIN-Vout =2V
VIN-Vout=2V, VOUT=0V
inside target value±2%.
(Ta=25°C, CIN=1µF, COUT=10µF, unless otherwise specified)
1.77
2.16
2.45
2.65
2.74
2.84
2.94
350
550
3.43
3.63
4.61
4.90
350
550
1.50
1.80
2.20
2.50
2.70
2.80
2.90
3.00
10
10
3.30
3.50
3.70
4.70
5.00
10
10
1.53
1.83
2.24
2.55
2.75
2.86
2.96
3.06
30
50
3.0
3.37
3.57
3.77
4.79
5.10
30
50
5.0
PPM/°C
mV
mV
mA
mA
mA
PPM/°C
mV
mV
mA
mA
mA
OUT
V
V
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R102-005,I
UTC UR133/A LINEAR INTEGRATED CIRCUIT
TYPICAL APPLICATION CIRCUIT
UTC
UR133/A
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°C.
The capacitance may be increased without limit.
A 1µF capacitor (or larger) should be placed between VIN to GND.
UR133/A ADJUSTABLE
V
V
IN
IN
UTC
UR133/A
+
1
uF
I
ADJ
R2
ADJ
V
OUT
V
OUT
+
V
REF
R1
10
uF
+
Cr
10
uF
Cr:10uF to improve ripple rejection
V
OUT=VREF
(1+R2/R1)+I
ADJ
*R2
UTC UNISONIC TECHNOLOGIES CO., LTD. 4
QW-R102-005,I
UTC UR133/A LINEAR INTEGRATED CIRCUIT
UR133
Output Current, IOUT( mA)
300
250
200
150
100
50
0
Output Current v.s. Input Voltage
VOUT=5.0V
VOUT=4.7V
VOUT=3.5V
VOUT=3.3V
VOUT=2.5V
910
4567
8
Input Voltage (V)
VOUT=3.7V
11 123
100
50
0
-50
(mV,AC)
Output Voltage
8
6
13
Input Voltage(V)
0 0.1 0.2 0.3 0.4
Line T rans ient Response
COUT=1uF
IL=1mA
VOUT=5.2V
0.5 0.6
Time (mS)
0.7
0.8 0.9 1.0
Ground Current vs.Input Voltage
4
VOUT=1.5V,1.8V,2.2V,2.5V,
2.7V,2.8V,2.9V,3.0V
3
2
1
Ground Current (mA)
0
02468
1.7
1.6
1.5
1.4
1.3
Dropout Voltage (V)
1.2
Dropout Voltage vs. Load Current
VOUT=1.5V,1.8V,2.2V,2.5V,2.7V,
0
0 50 100 150 200
VOUT=3.3V,3.5V,3.7V
VOUT=4.7V,5.0V
Input Voltage (V)
2.8V,2.9V,3.0V
VOUT=4.7V,5.0V
VOUT=3.3V,3.5V,3.7V
Load Current (mA)
10 12
250 300
Output Voltage
Load Current
(mV,AC)
Output Voltage
(mA)
Load Current
20
0
-20
(mV,AC)
-40
-60
150
(mA)
0.1
00.51.0
40
20
0
-20
-40
150
0.1
00.51.0
Load Transient Response
2.5 3.0
2.5 3.0
3.5
3.5
1.5 2.0
Time (mS)
Load Transient Response
COUT=1uF
VOUT=5.2V
1.5 2.0
Time (mS)
4.0 4.5 5.0
4.0 4.5 5.0
UTC UNISONIC TECHNOLOGIES CO., LTD. 5
QW-R102-005,I
UTC UR133/A LINEAR INTEGRATED CIRCUIT
UR133A
Output Current v.s. Input Voltage
Output Current, IOUT( mA)
500
450
400
350
300
250
200
150
100
50
0
VOUT=3.3V
VOUT=2.5V
4567
VOUT=5.0V
VOUT=4.7V
VOUT=3.7V
VOUT=3.5V
910
8
Input Voltage (V)
100
50
0
(mV,AC)
Output Voltage
-50
8
11 123
13
6
Input Voltage(V)
0 0.1 0.2 0.3 0.4
Line Regulation Response
COUT=1uF(Tantalum)
IL=1mA
VOUT=5.0V
0.5 0.6
0.7
Time (mS)
0.8 0.9 1.0
Ground Current vs.Input Voltage
6
VOUT=1.5V,1.8V,2.2V,2.5V,2.7V,
5
2.8V,
2.9V,
4
3.0V
3
2
Ground Current (mA)
1
0
02468
1.7
1.6
1.5
1.4
1.3
Dropout Voltage (V)
1.2
Dropout V oltage vs.Load Current
VOUT=1.5V,1.8V,2.2V,2.5V,2.7V,
0
0 50 100 150 200
VOUT=3.3V,3.5V,3.7V
VOUT=4.7V,5.0V
Input Voltage (V)
2.8V,2.9V,3.0V
VOUT=3.3V,3.5V,3.7V
250300
Load Current (mA)
10 12
VOUT=4.7V,5.0V
Load T rans ient Res pons e
40
20
0
(mV,AC)
Output Voltage
-20
-40
250
(mA)
0.1
Load Current
00.20.40.60.8
40
20
(mV,AC)
0
Output Voltage
-20
-40
250
(mA)
0.1
500450400350
Load Current
00.20.4
COUT=1uF(Tantalum)
VOUT=5.0V
1.0 1.2
1.4
Time (mS)
Load T ransient Res pons e
COUT=1uF(Tantalum)
VOUT=5.0V
1.0 1.2
0.6 0.8
Time (mS)
1.6 1.8 2.0
1.4
1.6 1.8 2.0
UTC UNISONIC TECHNOLOGIES CO., LTD. 6
QW-R102-005,I
Loading...