UNISONIC TECHNOLOGIES CO.,LTD
RXXLD30 Linear Integrated Circuit
www.unisonic.com.tw 1
Copyright © 2005 Unisonic Technologies Co.,LTD QW-R102-028,A
3A OUTPUT TYPE LOW
POWER-LOSS VOLTAGE
REGULATOR
FEATURES
*Low power-loss(Dropout voltage: 0.5V(max) at Io=3.0A)
*3.0A output type
*Output voltage precision:±3.0%
*Built-in ON/OFF control function and over-current protection
circuit.
*Thermal shutdown protection.
1
TO-220B
TO-220F-4
1
*Pb-free plating product number:RXXLD30L
PIN DESCRIPTION
PIN NO.
TO-220F-4 TO-220B PIN NAME
1 NC
1 2 INPUT
2 3 OUTPUT
3 4 GND
4 5 ON/OFF
ORDERING INFORMATION
Order Number
Normal Lead Free Plating Package Packing
RxxLD30-TF4-T RxxLD30L-TF4-T TO-220F-4 Tube
RxxLD30-TB5-T RxxLD30L-TB5-T TO-220B Tube
Note: xx: Output Voltage, refer to Marking Information.
MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
TO-220F-4
TO-220B
33 :3.3V
05 :5.0V
09 :9.0V
12 :12 V
UTC
RXXLD30L
VOLTAGE CODE
DATE CODE
Space :Pb/Sn
L:Pb-free
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 2
www.unisonic.com.tw QW-R102-028,A
BLOCK DIAGRAM
TO-220F-4 TO-220B
Specfic IC
1 2
34
Sp ecfic IC
2 3
45
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 3
www.unisonic.com.tw QW-R102-028,A
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER SYMBOL RATINGS UNIT
Input Voltage VIN 20 V
ON/OFF Control Terminal Voltage Vc 20 V
Output Current IOUT 3.0 A
No Heat Sink 1.4 W
Power Dissipation With Heat Sink PD 15 W
Junction Temperature TJ 125 °C
Operating Temperature TOPR -20 ~ +85 °C
Storage Temperature TSTG -40 ~ +150 °C
Note: The device is guaranteed to meet performance specification within 0℃~70℃ operating temperature range
and assured by design from –20℃~85℃, characteristic and correlation with static process control.
ELECTRICAL CHARACTERISTICS (Refer to the test circuits, unless otherwise specified, Ta=25°C)
For R33LD30(3.3V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT V
IN=5V, IOUT=2A 3.201 3.3 3.399 V
Line Regulation ∆VOUT VIN=4 ~ 10V, IOUT=5mA 0.1 2.5 %
Load Regulation ∆VOUT VIN=5V, IOUT=5mA ~ 3.0A 0.1 2.0 %
Temperature Coefficient of Output Voltage TcVo TJ=0 ~ 125°C,IOUT=5mA
±0.02 %/°C
Ripple Rejection RR Refer to Fig.2 45 55 dB
Dropout Voltage VD (Note1), IOUT=3A 0.5 V
ON VC(ON) V
IN=5V 2.0 V
Voltage for Control(Note2) OFF VC(OFF) VIN=5V 0.8 V
ON IC(ON) V
C=2.7V,VIN=5V 20 µA
Current for Control OFF IC(OFF) V
C=0.4V, VIN=5V -0.4 mA
Quiescent Current ID I
OUT=0A, VIN=5V 10 mA
For R05LD30(5V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT V
IN =7V, IOUT=2A 4.85 5.0 5.15 V
Line Regulation ∆VOUT VIN =6 ~ 12V, IOUT=5mA 0.5 2.5 %
Load Regulation ∆VOUT VIN =7V, IOUT=5mA ~ 3.0A 0.1 2.0 %
Temperature Coefficient of Output Voltage TcVo TJ=0 ~ 125°C, IOUT=5mA
±0.02 %/°C
Ripple Rejection RR Refer to Fig.2 45 55 dB
Dropout Voltage VD (Note1), IOUT=3A 0.5 V
ON VC(ON) V
IN =7V 2.0 V
Voltage for Control(Note2) OFF VC(OFF) VIN =7V 0.8 V
ON IC(ON) V
C=2.7V, VIN =7V 20 µA
Current for Control OFF IC(OFF) V
C=0.4V, VIN =7V -0.4 mA
Quiescent Current ID I
OUT =0A, VIN =7V 10 mA
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 4
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For R09LD30(9V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT V
IN =11V, IOUT=2A 8.73 9.0 9.27 V
Line Regulation ∆VOUT VIN =10 ~ 16V, IOUT=5mA 0.5 2.5 %
Load Regulation ∆VOUT VIN =11V, IOUT=5mA ~ 3.0A 0.1 2.0 %
Temperature Coefficient of Output Voltage TcVo TJ=0 ~ 125°C, IOUT=5mA
±0.02 %/°C
Ripple Rejection RR Refer to Fig.2 45 55 dB
Dropout Voltage VD (Note1), IOUT=3A 0.5 V
ON VC(ON) V
IN =11V 2.0 V
Voltage for Control(Note2) OFF VC(OFF) VIN =11V 0.8 V
ON IC(ON) V
C=2.7V, VIN =11V 20 µA
Current for Control OFF IC(OFF) V
C=0.4V, VIN =11V -0.4 mA
Quiescent Current ID I
OUT =0A, VIN =11V 10 mA
For R12LD30(12V)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT V
IN =14V, IOUT=2A 11.64 12.0 12.36 V
Line Regulation ∆VOUT VIN =13 ~ 19V, IOUT=5mA 0.5 2.5 %
Load Regulation ∆VOUT VIN =14V, IOUT=5mA ~ 3.0A 0.1 2.0 %
Temperature Coefficient of Output Voltage T c Vo TJ=0 ~ 125°C, IOUT=5mA
±0.02 %/°C
Ripple Rejection RR Refer to Fig.2 45 55 dB
Dropout Voltage VD (Note1), IOUT=3A 0.5 V
ON VC(ON) V
IN =14V 2.0 V
Voltage for Control(Note2) OFF VC(OFF) VIN =14V 0.8 V
ON IC(ON) V
C=2.7V, VIN =14V 20 µA
Current for Control OFF IC(OFF) V
C=0.4V, VIN =14V -0.4 mA
Quiescent Current ID I
OUT =0A, VIN =14V 10 mA
Note: 1.Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
2.In case of opening control terminal(pin 5 of TO-220B, pin 4 of TO-220F-4), output voltage turns on.
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 5
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TEST CIRCUIT
Note : ○: TO-220F-4, ( ): TO-220B
1
4
3
2
AV
Vo
0.33μF
Vc
I
D
Io
Ic
R
L
47μF
+
V
IN
(2) (3)
(5)
(4) A
A
Fig.1
1
4
3
2
V
+
+
Fig.2
For Ripple Rejection
V
IN
0.33μF
47μF
Io
R
L
ei
eo
f=120Hz
ei=0.5Vrms
VIN=5V(R33LD30)
7V(R05LD30)
11V(R09LD30)
14V(R12LD30) Io=0.5A
RR=20log (ei /eo)
(2) (3)
(5)
(4)
TYPICAL APPLICATION
1
4
3
2
V
IN
V
O
load
Cin Co
+
ON/OFF signal
High or O pen:Output ON
Low :Output OFF
( ) : TO-220B
○
: TO-220F-4
(2) (3)
(4) (5)
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 6
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TYPICAL CHARACTERISTICS
P ower dissi pati on, P
D
(W)
-20 804020060
0
5
10
15
20
0
0
Output volt age , V o ( V)
Ambient temperature, Ta (℃)
Fig . 3 Power Dissipation vs. Ambient
Temperature Fig .4 Over cur r ent Protection
Charact er ist ics(Typical Value) (R33LD30)
PD1
PD2
P D1:N o h eat si n k
P D2:Wi th infin ite heat sink
4.03.02.01.0
9
8
7
6
5
4
3
2
1
10
11
12
Note: Oblique line portion :Overheat protection may operate in this area .
Vd=3V Vd=0.5V
Vd=1V
Vd =2V
Output voltage, Vo (V)
Output current, Io (A)
05.04.03.02.0
12
11
10
9
8
7
6
5
4
3
2
1
Fig .6 O ver cur r e nt Pr ot ection Charac t er ist ics
(Typical Value)( R09LD 30)
Output voltage, Vo (V)
Output current, Io (A)
Fig.7 O ver c ur r ent Prot ec t ion Char act er ist ics
(Typical Value)( R12LD 30)
Output current Io (A)
Output voltage, Vo (V)
05.04.03.02.0
12
11
10
9
8
7
6
5
4
3
2
1
Vd=0.5V
Fig .8 O ut put Voltage Deviation vs .Junct ion
Temperature (R03LD30)
Output voltage deviati on, △Vo (mV)
-25 1005025075125
-100
-50
0
50
100
150
V
IN
=5V
Io=0.5A
Junction temperature, T
J
(℃
)
Vd=2V
Vd=3V
Vd=1V
Vd=0.5V
Vd=2V
Vd=3V
Vd=1V
Fig .5 O ver cur r ent Prot e ct ion Charact er ist ics
(Typical Value)(R05LD30)
05.04.03.02.0
12
11
10
9
8
7
6
5
4
3
2
1
Vd=2V
Vd=0.5V
Vd=3V
Vd=1V
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 7
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TYPICAL CHARACTERISTICS(cont.)
Fig.9 Out put Voltage Deviation vs .Junction
Temperature (R 05LD30)
Outpu t voltage deviation , △Vo (mV)
-25 1005025075125
Junction temperature, T
J
(℃)
-100
-50
0
50
100
150
V
IN
=7V
Io=0.5A
V
IN
=11V
Io=0.5A
-25 1005025075125
-150
-100
-50
0
50
100
150
250
Fig.10 Out put Voltage Deviation vs .Junct ion
Temperature (R09LD30)
Outpu t voltage deviation , △Vo (mV)
Junction temperature, T
J
(℃)
Input voltage, V
IN
(V)
Output voltage, Vo (V)
Vi-o=0.5V
Vi-o=1V
015105
0
5
10
V
IN
=18V
Io=0.5A
-25 10050250 75 125
-150
-100
-50
0
50
100
150
250
Fig .11 Out put Voltage Deviation vs . Junct ion
Temperature (R 12LD30)
O utput voltage deviat ion, △Vo (mV)
Junction temperature, T
J
(℃)
200
-200
Fig.12 O ut put Voltage vs .Input
Voltage (R33LD 30)
08642
8
7
6
5
4
3
2
1
10
0
Fig .13 Out put Voltage vs .I nput
Voltage ( R05 LD30)
Input voltage, V
IN
(V)
Fig.14 O ut put Voltage vs .Input
Voltage (R09LD 30)
Output voltage, Vo (V)
Input voltage, V
IN
(V)
R
L
=∞Ω R
L
=1.66Ω
R
L
=2.5Ω
R
L
=∞Ω
R
L
=4.5Ω
R
L
=3Ω
08642
8
7
6
0
4
3
2
1
Output voltage, Vo (V)
10
R
L
=∞Ω
R
L
=1.65Ω
R
L
=1.1Ω
0
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 8
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TYPICAL CHARACTERISTICS(cont.)
Output voltage, V o ( V)
0251510520
0
5
10
15
20
Input voltage, V
IN
(V)
Fig .15 Output Voltage v s .I nput
Volt age ( R 12LD30) Fig.16 Circ uit O per a t ing Current vs .Input
Volt age ( R 33LD30)
R
L
=∞Ω
R
L
=6Ω
R
L
=4Ω
0510
0
20
40
60
80
Input voltage, V
IN
(V)
R
L
=∞Ω
R
L
=1.65ΩR
L
=1.1Ω
Output volt age, Vo (V)
Input voltage, V
IN
(V)
Input voltage, V
IN
(V)
Fig .20 Dropout Voltage v s . Junction
Temperature
Dropout voltage, Vi-o (V)
Junction temperature, T
J
(℃)
0510
0
20
40
60
80
Circui t operat ing cur rent, I
BIAS
(mA)
Fig . 17 Circuit Operat ing Curr ent vs . I nput
Voltage (R05 LD30)
Input voltage, V
IN
(V)
010 15
Fig . 18 Circuit Operat ing Curr ent vs . I nput
Volt age ( R09 LD30)
0
20
40
60
80
5
20
40
60
80
Fig .19 Circuit O per at ing Curr ent vs .Inpu t
Voltage (R12LD30 )
Circui t operating cur rent, I
BIAS
(mA)
0251510520
0-25 50
0
0.1
0.2
0.3
0.4
12510007525
0.5
Circuit oper ating current, I
BIAS
(mA)
R
L
=∞Ω R
L
=2.5Ω
R
L
=1.66Ω
R
L
=∞Ω
R
L
=4.5Ω
R
L
=3Ω
R
L
=∞Ω
R
L
=6Ω
R
L
=4Ω
R33LD30 R12LD30
R09LD30
R05LD30
RXXLD30 Linear Integrated Circuit
UNISONIC TECHNOLOGIES CO., LTD 9
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TYPICAL CHARACTERISTICS(cont.)
-25 1005025075
0
2
4
6
8
Ripple reje c tion , RR (dB)
Input ripple frequency, f (kHz)
Fig.22 Ripple Rejection vs .Input Ripple
Frequency
125
10
Fig. 21 Q uiescent Curr ent vs .Junction
Temperature
Quiescent current, I
Q
(mA)
Junction temperature, T
J
(℃)
Io=oA
R12LD30 R09LD30
R05LD30 R33LD30
0.1 100
0
20
40
60
80
70
50
30
10
101
R05LD30(VIN=7V)
R09LD30(VIN=11V)
R12LD30
(VIN=14V)
R33LD30(VIN=5V)
I0=c=0.5A,ei=0.5Vrms
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exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other param eters) l isted i n products specif i cati ons of any and all UTC product s descri bed or cont ained
herein. UTC products are not designed for use in life support appliances, devices or systems where
m alf unct ion of t hese pr oduct s c an be r easonably ex pect ed to resul t i n personal i njur y. Reproduc ti on i n
whole or i n part is prohibited without the prior written consent of the copyri ght owner. The information
presented i n thi s docum ent does not f orm part of any quotat ion or contr act , i s bel iev ed to be accurat e
and reliabl e and may be changed wit hout notice.
