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Low Power-Loss Voltage Regulators
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Variable Output Low Power-Loss Voltage Regulators
s Features
Compact resin full-mold package Low power-loss (Dropout voltage : MAX.0.5V) Variable output voltage (setting range : 1.5 to 30V) Built-in output ON/OFF control function
29.1MAX
s Outline Dimensions
10.2MAX 3.60.2 4.50.2
(Unit : mm)
2.80.2 7.40.2
PQ30RV31
s Applications
Power supply for print concentration control of electronic typewriters with display Series power supply for motor drives Series power supply for VCRs and TVs
4-1.4 13.5MIN 4-0.6
+0.3 -0
+0.2 -0.1
3-(2.54)
(0.5)
s Model Line-ups
Output voltage Reference voltage precision : 4% Reference voltage precision : 2% 1A output PQ30RV1 2A output PQ30RV2
1234 qqqq
Internal connection diagram
1 Specific IC 4 3 2 1 DC input (VIN) 2 DC output (VO) 3 GND 4 Output voltage minute adjustment terminal (VADJ)
PQ30RV11
PQ30RV21
s Equivalent Circuit Diagram
1 2
+
Reference voltage generation circuit *ASO protection circuit
4
Overheat protection circuit
*ASO:Area of Safety Operation
3 * Please refer to the chapter" Handling Precautions ".
" In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. "
4.8MAX 15.60.5 (1.5)
3.20.1
Low Power-Loss Voltage Regulators
s Absolute Maximum Ratings
Parameter
*1 *1
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
(Ta=25C) Symbol VIN VADJ IO PD1 PD2 Tj Topr Tstg Tsol Rating 35 7 1 2 1.5 15 18 150 -20to+80 -40to+150 260 (For 10s) Unit V V A W W C C C C
*2
Input voltage Output voltage adjustment voltage PQ30RV1/PQ30RV11 Output current PQ30RV2/PQ30RV21 Power dissipation (No heat sink) PQ30RV1/PQ30RV11 Power dissipation PQ30RV2/PQ30RV21 (With infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature
*1 *2
All are open except GND and applicable terminals. Overheat protection may operate at Tj>=125C.
s Electrical Characteristics
Unless otherwise specified, condition shall be VIN=15V, VO=10V, IO=0.5A, R1=390 (PQ30RV1/PQ30RV11) VIN=15V, VO=10V, IO=1.0A, R1=390 (PQ30RV2/PQ30RV21) Parameter Symbol Conditions Input voltage VIN R2=94 to 8.5k PQ30RV1/PQ30RV2 Output voltage VO R2=84 to 8.7k PQ30RV11/PQ30RV21 IO=5mA to 1A PQ30RV1/PQ30RV11 Load regulation RegL IO=5mA to 2A PQ30RV2/PQ30RV21 Line regulation VIN=11 to 28V RegI Cref=0 Ripple rejection Fefer to Fig. 2 RR Cref=3.3F PQ30RV1/PQ30RV2 Reference voltage Vref PQ30RV11/PQ30RV21 Temperature coefficient of reference voltage Tj=0 to 125C TcVref *3, IO=0.5A PQ30RV1/PQ30RV11 Dropout voltage Vi-O *3, IO=2A PQ30RV2/PQ30RV21 Quiescent current IO=0 Iq
*3
(Ta=25C) MIN. 4.5 1.5 45 55 1.20 1.225 TYP. 0.3 0.5 0.5 55 65 1.25 1.25 1.0 MAX. 35 30 1.0 1.0 2.5 1.30 1.275 0.5 7 Unit V V % % dB V % V mA
Input voltage shall be the value when output voltage is 95% in comparison with the initial value.
Fig.1 Test Circuit
VIN 1 q 2 q R2 3 q 0.33F 4 q Vref R1 Iq 390
+
47F
VO
A V
IO
R2 VO=Vref X 1+ --------R1 [R1=390,Vref =1.25V]
=1.25X
R2 1+ --------R1
V
RL
A
Fig.2 Test Circuit of Ripple Rejection
1 q ei VIN 0.33F 2 q R2 3 q 4 q R1 390
+ +
47F IO
+
~
Cref 3.3F
V eo ~
RL
IO=0.5A f=120Hz (sine wave) ei=0.5Vrms RR=20 log (ei/eo)
Low Power-Loss Voltage Regulators
Fig.3 Power Dissipation vs. Ambient Temperature (PQ30RV1/PQ30RV11)
20 PD1 :No heat sink PD2 :With infinite heat sink PD2 10
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.4 Power Dissipation vs. Ambient Temperature (PQ30RV2/PQ30RV21)
20
Power dissipation PD (W)
PD1 :No heat sink PD2 :With infinite heat sink PD2
Power dissipation PD (W)
15
15
10
5 PD1
5 PD1
50 100 150 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area.
0 -20
0
50 100 150 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area.
0 -20
0
Fig.5 Overcurrent Protection Characteristics (PQ30RV1/PQ30RV11)
100 Relative output voltage (%)
Fig.6 Overcurrent Protection Characteristics (PQ30RV2/PQ30RV21)
100
80 60 40 20 0 0 0.5 1.0 1.5 Output current IO (A) 2.0
Relative output voltage (%)
80 60 40 20
0
0
1.0 2.0 3.0 Output current IO (A)
4.0
Fig.7 Output Voltage Adjustment Characteristics
30 R1 390 Output voltage VO (V) 25 20 15 10 5 0 101
Fig.8 Reference Voltage Deviation vs. Junction Temperature
Reference voltage deviation Vref (mV)
10
0
10
2
10 R2 ()
3
10
4
10
5
-10 -25
R1=390,R2=2.7k,VIN=15V IO=0.5A(PQ30RV1/PQ30RV11) IO= 1A(PQ30RV2/PQ30RV21) 0 25 50 75 100 125 Junction temperature Tj (C)
Low Power-Loss Voltage Regulators
Fig.9 Output Voltage vs. Input Voltage (PQ30RV1/PQ30RV11)
15 R1=390,R2=2.7k,Tj=25C Output voltage VO (V)
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.10 Output Voltage vs. Input Voltage (PQ30RV2/PQ30RV21)
15 R1=390,R2=2.7k,Tj=25C
Output voltage VO (V)
10 RL= 5 RL=10
10 RL= 5 RL=5
0 0 5 10 15 Input voltage VIN (V) 20
0 0 5 10 15 Input voltage VIN (V) 20
Fig.11 Dropout Voltage vs. Junction Temperature (PQ30RV1/PQ30RV11)
0.5 R1=390,R2=2.7k VIN:input voltage shall be the 0.4 value when output voltage is 95% in comparison with the initial value 0.3 0.2 0.1 0 -20 Io=1A
Fig.12 Dropout Voltage vs. Junction Temperature (PQ30RV2/PQ30RV21)
0.5 R1=390,R2=2.7k VIN:input voltage shall be the 0.4 value when output voltage is 95% in comparison with the initial value 0.3 0.2 1A 0.1 0 -20 0.5A IO=2A 1.5A
Dropout voltage Vi-O (V)
0.75A 0.5A 0.25A
25 50 75 100 0 Junction temperature Tj (C)
125
Dropout voltage Vi-O (V)
0 25 50 75 100 Junction temperature Tj (C)
125
Fig.13 Quiescent Current vs. Junction Temperature
5 4 3 2 1 0 -20 VIN=35V IO=0
Fig.14 Ripple Rejection vs. Input Ripple Frequency (PQ30RV1/PQ30RV11)
80 70
Ripple rejection RR (dB)
Cref=3.3F
Quiescent current Iq (mA)
60 50 40 30 20 Tj=25C R1=390,R2=2.7k 10 IO=0.5A,ei=0.5Vrms, 0 VIN=15V 0.1 1 10 100 Input ripple frequency f (kHz) No Cref
0 25 50 75 100 Junction temperature Tj (C)
125
Low Power-Loss Voltage Regulators
Fig.15 Ripple Rejection vs. Input Ripple Frequency (PQ30RV2/PQ30RV21)
80 70 Ripple rejection RR (dB) 60 50 40 30 20 Tj=25C R1=390,R2=2.7k 10 IO=0.5A,ei=0.5Vrms, 0 VIN=15V 0.1 1 10 100 Input ripple frequency f (kHz) No Cref Cref=3.3F
Ripple rejection RR (dB)
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Fig.16 Ripple Rejection vs. Output Current (PQ30RV1/PQ30RV11)
80 70 Cref=3.3F
60 50
No Cref
40 30 0
Tj=25C R1=390,R2=2.7k VIN=15V,ei=0.5Vrms,f=120Hz 0.2 0.4 0.6 0.8 Output current IO (A) 1.0
Fig.17 Ripple Rejection vs. Output Current (PQ30RV2/PQ30RV21)
80 70 No Cref 60 50 Cref=3.3F
Ripple rejection RR (dB)
Fig.18 Output Peak Current vs. Dropout Voltage (PQ30RV1/PQ30RV11)
2.0
Output peak current IOP (A)
1.5
40 30 0
Tj=25C R1=390,R2=2.7k VIN=15V,ei=0.5Vrms,f=120Hz 0.2 0.4 0.6 0.8 Output current IO (A) 1.0
Tj=25C 1.0 R1=390,R2=2.7k 0 5 10 Dropout voltage Vi-O (V)
15
Fig.19 Output Peak Current vs. Dropout Voltage (PQ30RV2/PQ30RV21)
Output peak current IOP (A)
Fig.20 Output Peak Current vs. Junction Temperature (PQ30RV1/PQ30RV11)
2.0
4
Output peak current IOP (A)
VIN-VO=5V 1.5 2V 0.5V 1.0 IOP:Output current when output voltage is 95% in comparison with the initial value R1=390,R2=2.7k 0 25 50 75 100 Junction temperature Tj (C) 125
3
Tj=25C R1=390,R2=2.7k 0 5 10 Dropout voltage Vi-O (V) 15
0.5 -20
Low Power-Loss Voltage Regulators
Fig.21 Output Peak Current vs. Junction Temperature (PQ30RV2/PQ30RV21)
5
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Output peak current IOP (A)
4
VIN-VO=5V
2V 3 0.5V IOP:Output current when output voltage is 95% in comparison with the initial value R1=390,R2=2.7k 0 25 50 75 100 Junction temperature Tj (C) 125
2 -20
s Standard Connection
D1
VIN
1 q
2 q R2 4 q 3 q
VO
+
Cref 390 to10k
CIN
R1
CO
D1
: This device is necessary to protect the element from damage when reverse voltage may be applied to the regulator in case of input short-circuiting. Cref : This device is necessary when it is required to enhance the ripple rejection or to delay the output start-up time(*1). (*1)Otherwise, it is not necessary. (Care must be taken since Cref may raise the gain, facilitating oscillation.) (*1)The output start-up time is proportional to Cre fX R2. CIN, CO : Be sure to mount the devices CIN and CO as close to the device terminal as possible so as to prevent oscillation. The standard specification of CIN and CO is 0.33F and 47F, respectively. However, ajust them as necessary after checking. R1, R2 : These devices are necessary to set the output voltage. The output voltage VO is given by the following formula: VO=Vref X (1+R2/R1) (Vref is 1.25V TYP) The standard value of R1 is 390.But value up 10kdoes not cause any trouble.
Load
+
Low Power-Loss Voltage Regulators
s ON/OFF Operation
D1
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
VADJ
D2
VIN
1 q
2 q R2 4 q 3 q D2
+
VO R1 RL
R2
CIN
VADJ R1
R3
CO
RL VO'
RD
VC
High : Output OFF Low : Output ON Equivalent Circuit in OFF-state
ON/OFF operation is available by mounting externally D2 and R3. When VADJ is forcibly raised above Vref (1.25V TYP) by applying the external signal, the output is turned off (pass transistor of regulator is turned off). When the output is OFF, VADJ must be higher then Vref MAX., and at the same time must be lower than maximum rating 7V. In OFF-state, the load current flows to RL from VADJ through R2. Therefore the value of R2 must be as high as possible. VO'=VADJ X RL/(RL+R2) occurs at the load. OFF-state equivalent circuit R1 up to 10 is allowed. Select as high value of RL and R2 as possible in this range. In some case, as output voltage is getting lower (VO<1V) , impedance of load resistance rises. In such condition, it is sometime impossible to obtain the minimum value of VO'. So add the dummy resistance indicated by RD in the figure to the circuit parallel to the load.
s An Example of ON/OFF Circuit Using the 1-chip Microcomputer Output Port (PQ30RV1)
Output port of microcomputer VOH (max) =0.5 V VOH (min) =2.4 V (IOH=0.2mA) MAX. rating of IOH=0.5mA Output should be set as follows. 15.6V RL=52 (IO=0.3A) From VO=1.25V (1+R2/R1) we get VO=15.6V. R2/R1=11.48 Assuming that VF(max)=0.8V for D2 in case of VOH(min)=2.4V, we get VADJ=VOH(min)-VF(max)=2.4V-0.8V=1.6V. From Vref(max)=1.3V we get R3=0 If R1=10k , we get R2=11.48 X R1=114.8k and IOH as follows, ingnoring RL (52 ) : IOH=1.6V X (R1+R2) /R1 X R2 =1.6V X (10k +114.8k ) /10k X 114.8k =0.17mA Hence, IOH<0.2mA. Therefore VOH(min)is ensured. Next, assuming that VF(min) =0.5V for D2 in case of VOH(max), we get: IOH=(5V-0.5V) (R1+R2) /R1 X R2=0.49mA which is less than the rating. Figure 1 shows the VO-VC characteristics when R1=10k , R2=115k , R3=0 , VIN=17V, RL=52 , and D1=1S2076A (Hitachi).
Low Power-Loss Voltage Regulators
Output Voltage vs. Control Voltage (PQ30RV1)
VIN=17V RL=52 R1=10k R2=115k R3=0 D1=1S2076A
PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21
Output voltage VO (V)
15
10
5
0
1
2 3 4 Control voltage VC (V)
5
s Model Line-ups for Lead Forming Type
Output voltage Output voltage precision:2.5% 5V output PQ30RV1B 2A output PQ30RV2B
s Outline Dimensions (PQ30RV1B/PQ30RV2B)
10.2MAX
3.60.2
(Unit : mm)
4.50.2 2.80.2
7.40.2
(2.0)
(24.6)
(1.5) 4-1.4 4-0.6
+0.3 -0
+0.2 -0.1
(0.5) (3.2)
3-(2.54)
50.5 8.20.7 * ( ) : Typical value * Radius of lead forming portion:R=0.5 to 1.5mm
1234 qqqq
Internal connection diagram
1 Specific IC 3 2
4
1 DC input (VIN) 2 DC output (VO) 3 GND 4 Output voltage minute adjustment terminal (VADJ)
Note) The value of absolute maximum ratings and electrical characteristics is same as ones of PQ30RV1/2 series.
4.4MIN
(5
0
.5
PQ30RV1
)
3.20.1
16.40.7

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