1
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Features Outline Dimensions
Lead finish:Lead-free solder plating
(Composition: Sn2Cu)
Applications
PQxxxRDA2SZH Series
PQxxxRDA2SZH Series
(Unit : mm)
Sheet No.: OP06050
TO-220 Type,2A Output Low
Power-Loss Voltage Regulators
Model Line-up
Parameter Symbol Rating Unit
2.0
V
VInput voltage
1.4 W
°C
Power dissipation
*1
*3
*2
Junction temperature 150
Operating temperature -40 to +85
Storage temperature -40 to +150
Soldering temperature 260(10s)
20
Absolute Maximum Ratings
(Ta=25°C)
ON/OFF control terminal voltage
Output current
*1
°C
°C
°C
*1
All are open except GND and applicable terminals.
*2
PD1: No heat sink,PD2: With infinite heat sink.
*3
Overheat protection may operate at Tj=125
˚C
to 150
˚C
VIN
VC
IO
PD1
Tj
Topr
Tstg
Tsol
20
A
3.3V
5.0V
Model No.
9.0V
12.0V
Model No.
PQ033RDA2SZH
PQ050RDA2SZH PQ090RDA2SZH
PQ120RDA2SZH
Output voltage Output voltage
15PD2
4–(ø1.4)
(6.8)
4
321
3–(2.54)
4–0.6+
0.2
–0.1
4–1.4+
0.3
–0
ø3.2
±0.1
10.2
MAX.
(0.5)
(1.5)
2.8
±0.2
4.5
±0.2
(1.5)
7.4
±0.2
29.1
MAX.
13.5
MIN.
3.6
±0.2
15.6
±0.5
4.8
MAX.
Specific IC
Internal connection diagram
12
3
4
DC input (V
IN
)
DC output (V
O
)
GND
ON/OFF control terminal (V
C
)
1.Power supplies for various electronic equipment such as
AV,OA
Epoxy resin
1.Low power-loss
Dropout voltage: MAX.1.0V(IO=2.0A)
2.Output current: 2A
3.Low dissipation current
(Dissipation current at no load: MAX. 8mA
Output OFF-state dissipation current: MAX.5μA)
4.Built-in ON/OFF function
5.Built-in overcurrent and overheat protection functions
6.Built-in ASO protect function
7.RoHS directive compliant
050RDA2
H
Product mass:(1.5g)
( ) : Typical dimensions
Lead finish
identification mark
2
Sheet No.: OP06050
Electrical Characteristics
%
dB
Parameter
Output voltage
Load regulation
Line regulation
Ripple rejection
ON-state voltage for control
ON-state current for control
Symbol Conditions MIN. MAX. Unit
1.0
-0.1 1.0
-
60
RR
200
-
-
-
-
Quiescent current
Output OFF-state dissipation current
5
-
-
%/°C
-
-
5
-
OFF-state voltage for control
8
TYP.
V
0.1
%
-
-
-2.0 -V
0.8
-- V
OFF-state current for control 2
-
PQxxxRDA2SZH Series
(Unless otherwise specified,condition shall be VIN=VO(TYP.)+2V,IO=1.0A,VC=2.7V,Ta=25°C)
Refer to the table below
VO
RegLIO=5mA to 2A
RegIVIN=VO(TYP.)+1V to VO(TYP.)+7V , IO=5mA
Temperature coefficient of output voltage TCVOTj=0 to +125°C, IO=5mA ±0.01
VC(ON)
IC(ON)
VC(OFF)
IC(OFF)
Iq
Iqs
VC=0.4V
IO=0A
IO=0A, VC=0.4V
A
A
mA
A
Dropout voltage VI-O IO=2.0A 1.0
-V
4
5
In case of opening control terminal , output voltage turns off.
Table.1 Output Voltage Line-up
PQ033RDA2SZH
PQ050RDA2SZH
PQ090RDA2SZH
PQ120RDA2SZH
VO
3.218
4.875
8.775
3.382
5.125
9.225
12.30
V
3.3
5.0
9.0
12.0
11.70
MIN. TYP. MAX. Unit
Conditions
SymbolModel No.
-
4
-
V
IN
=V
O
(TYP.)+2V, I
O
=1.0A,
V
C
=2.7V, T
a
=25
°C
Fig.1 Test Circuit
Fig.2 Test Circuit of Ripple Rejection
-
VC=2.7V
-
-
V
IN
=3.8V(PQ033RDA2SZH) , Input voltage shall be the value when output voltage is 95% in comparison with the
initial value(PQ050RDA2SZH,PQ090RDA2SZH,PQ120RDA2SZH).
A
A
2
4
3
1
V
A
V
IN
0.33F47F
I
q
V
C
I
C
V
O
I
O
R
L
+
ei
eo
2.7V
2
1
4
3V
~
~
I
O
R
L
+
+
V
IN
V
C
f=120Hz (sine wave)
e
i(rms)
=0.5V
VIN=5.3V (PQ033RDA2SZH)
VIN=7V (PQ050RDA2SZH)
VIN=11V (PQ090RDA2SZH)
VIN=14V (PQ120RDA2SZH)
IO=0.5A
RR=20 log(e
i(rms)
/e
o(rms)
)
0.33F47F
+
+
3Sheet No.: OP06050
PQxxxRDA2SZH Series
Note)
Oblique line portion:Overheat protection may operate in this area.
Power dissipation PD (W)
Fig.3 Power Dissipation vs. Ambient
Temperature
Output voltage V
O
(V)
Output current IO (A)
Fig.4
Overcurrent Protection Characteristics
(
PQ033RDA2SZH
)
Fig.5
Overcurrent Protection Characteristics
(
PQ050RDA2SZH
)
Output voltage V
O
(V)
Output current IO (A)
Fig.6
Overcurrent Protection Characteristics
(
PQ090RDA2SZH
)
Output voltage V
O
(V)
Output current IO (A)
Fig.7
Overcurrent Protection Characteristics
(
PQ120RDA2SZH
)
Output voltage V
O
(V)
Output current IO (A)
Fig.8 Output Voltage vs. Input Voltage
(PQ033RDA2SZH)
Input Voltage V
IN
(V)
Output Voltage V
O
(V)
0
1.4
5
10
15
20
-30 0 85 100 125 150
PD2
PD1
25 7550
P
D1
:No heat sink
P
D2
:With infinite heat sink 
Ambient temperature Ta (°C)
0 1.0 2.0 3.0
0
1
2
3
4
5
VIN=20V
VIN=18.3V VIN=13.3V
VIN=4.3V
VIN=3.8V
VIN=5.3V
VIN=8.3V
0 1.0 2.0 3.0
0
1
2
3
4
5VIN=20V
VIN=15V
VIN=10V
VIN=7V
VIN=5.5V
VIN=6V
6
0 1.0 2.0 3.0
0
1
2
3
4
5
VIN=20V
VIN=9.5V
VIN=11V
VIN=10V
6
7
8
9
10
11
VIN=14V
0 1.0 2.0 3.0
0
2
4
6
8
10
12
14
VIN=20V
VIN=17V
VIN=13V
VIN=12.5V
VIN=14V
0102468
0
1
2
3
4
5
IO=0A
IO=1A
IO=2A
4Sheet No.: OP06050
PQxxxRDA2SZH Series
Fig.9 Output Voltage vs. Input Voltage
(PQ050RDA2SZH)Fig.10 Output Voltage vs. Input Voltage
(PQ090RDA2SZH)
Fig.11 Output Voltage vs. Input Voltage
(PQ120RDA2SZH)
Input Voltage V
IN
(V)
Output Voltage V
O
(V)
Input Voltage V
IN
(V)
Output Voltage V
O
(V)
Input Voltage V
IN
(V)
Output Voltage V
O
(V)
Fig.12 Circuit Operating Current vs. Input
Voltage (PQ033RDA2SZH)
Input Voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
Fig.13 Circuit Operating Current vs. Input
Voltage (PQ050RDA2SZH)
Input Voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
Fig.14 Circuit Operating Current vs. Input
Voltage (PQ090RDA2SZH)
Input Voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
0102468
0
2
4
6
8
IO=0A
10
12 14 15
12
IO=1A
IO=2A
100
0
10
20
40
30
50
24 6 8
60
IO=0A
IO=1A
IO=2A
0
10
20
40
30
50
60
100
24 6 8
IO=0A
IO=1A
IO=2A
0
10
20
40
30
50
100
2468
12 14 15
IO=2A
IO=1A
IO=0A
0102468
0
1
2
3
4
5IO=0A
IO=1A
IO=2A
6
0102468
0
2
4
6
8
10
12
12 14 16 18
14 IO=0A
IO=1A
IO=2A
5
Sheet No.: OP06050
PQxxxRDA2SZH Series
Fig.15 Circuit Operating Current vs. Input
Voltage (PQ120RDA2SZH)
Input Voltage V
IN
(V)
Circuit operating current I
BIAS
(mA)
Fig.16 Dropout Voltage vs. Output Current
(PQxxxRDA2SZH)
Output current I
O
(A)
Dropout voltage V
I-O
(V)
Fig.17 Output Voltage Fluctuation vs. Junction
Temperature (PQ033RDA2SZH)
Junction temperature Tj (°C)
0
10
20
40
30
50
100
2468
12 14 16
IO=2A
IO=1A
IO=0A
18
1.0
0.4
0.3
0.2
0.1
00.5 1 1.5 2
0
0.5
0.6
0.7
0.8
0.9
PQ050RDA2SZH
PQ090RDA2SZH
PQ120RDA2SZH
-50 -25 0 25 50 75 100 125
-50
-40
-30
-20
-10
0
10
20
30
40
50
V
IN
=5.3V
Vc=2.7V
Io=1.0A
-50 -25 0 25 50 75 100 125
-50
-40
-30
-20
-10
0
10
20
30
40
50
V
IN
=7V
Vc=2.7V
Io=1.0A
Output voltage fluctuation ΔV
O
(mV)
Fig.18 Output Voltage Fluctuation vs. Junction
Temperature (PQ050RDA2SZH)
Junction temperature Tj (°C)
Output voltage fluctuation ΔV
O
(mV)
-50 -25 0 25 50 75 100 125
-100
-80
-60
-40
-20
0
20
40
60
80
100
V
IN
=11V
Vc=2.7V
Io=1.0A
-50 -25 0 25 50 75 100 125
-100
-80
-60
-40
-20
0
20
40
60
80
100
V
IN
=14V
Vc=2.7V
Io=1.0A
Fig.19 Output Voltage Fluctuation vs. Junction
Temperature (PQ090RDA2SZH)
Junction temperature Tj (°C)
Output voltage fluctuation ΔV
O
(mV)
Fig.20 Output Voltage Fluctuation vs. Junction
Temperature (PQ120RDA2SZH)
Junction temperature Tj (°C)
Output voltage fluctuation ΔV
O
(mV)
6
Sheet No.: OP06050
PQxxxRDA2SZH Series
Load 
 Typical Application
DC input
ON/OFF signal
 High : Output ON
Low or Open : Output OFF
Fig.21 Dropout Voltage vs. Junction
Temperature (PQxxxRDA2SZH)
Dropout voltage V
i-O
(V)
Fig.22 Quiescent Current vs. Junction
Temperature(PQxxxRDA2SZH)
Quiescent current I
q
(mA)
Fig.23 ON/OFF Threshold Voltage vs. Junction
Temperature (PQ090RDA2SZH)
ON-OFF threshold voltage Vc(V)
-50 -25 0 25 50 75 100 125
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
050:Vin=4.75V
090:Vin=8.55V
120:Vin=11.4V
Vc=2.7V
Io=2A
PQ120RDA2SZH
PQ050RDA2SZH / PQ090RDA2SZH
-50 -25 0 25 50 75 100 125
033
050 / 090 / 120
Vc=2.7V
Io=0A
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
Junction temperature Tj (°C) Junction temperature Tj (°C)
-50 -25 0 25 50 75 100 125
2.4
2.0
1.8
1.4
1.2
0.6
0.4
0.2
0
0.8
1.0
1.6
2.2
V
IN
=11V
Io=0A
0.1 1 10 100
40
50
60
70
80
ei(rms)=0.5V
VIN=VO(TYP)+2V
Vc=2.7V
IO=0.5A
CO=47μF
PQ033RDA2SZH
PQ050RDA2SZH
PQ090RDA2SZH
PQ120RDA2SZH
Junction temperature Tj (°C)
Fig.24 Ripple Rejection vs. Input Ripple
Frequency (PQxxxRDA2SZH)
Ripple rejection RR (dB)
Input ripple frequency f (kHz)
Ripple rejection RR (dB)
Fig.25 Ripple Rejection vs. Output Current
(PQxxxRDA2SZH)
Output current IO(A)
0 0.4 1 1.4 20.2 0.6 0.8 1.2 1.6 1.8
0
10
50
60
80
20
30
40
70
PQ033RDA2SZH PQ050RDA2SZH
PQ090RDA2SZH
PQ120RDA2SZH
ei(rms)=0.5V
f=120Hz
VIN=VO(TYP)+2V
Vc=2.7V
CO=47μF
+
Vo
1
3
2
4
V
IN
C
O