Low Power-Loss Voltage Regulators PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 Variable Output Low Power-Loss Voltage Regulators ■ Features ■ Outline Dimensions ¡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 (Unit : mm) 4.5±0.2 10.2MAX 7.4±0.2 3.6±0.2 2.8±0.2 13.5MIN ¡Power supply for print concentration control of electronic typewriters with display ¡Series power supply for motor drives ¡Series power supply for VCRs and TVs φ3.2±0.1 4-1.4 +0.3 -0 4-0.6 +0.2 -0.1 (1.5) (0.5) 3-(2.54) ■ Model Line-ups 1 ● 2 ● 3 ● 4 ● Output voltage 1A output 2A output Reference voltage precision : ±4% PQ30RV1 PQ30RV2 Reference voltage precision : ±2% 4.8MAX 15.6±0.5 29.1MAX ■ Applications PQ30RV31 PQ30RV11 Internal connection diagram 1 PQ30RV21 2 Specific IC 4 3 1 DC input (VIN) 2 DC output (VO) 3 GND 4 Output voltage minute adjustment terminal (VADJ) ■ Equivalent Circuit Diagram 1 2 - 4 + Reference voltage generation circuit *ASO protection circuit 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. ” Low Power-Loss Voltage Regulators PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 ■ Absolute Maximum Ratings (Ta=25˚C) Parameter *1 *1 *2 *1 *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 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 All are open except GND and applicable terminals. Overheat protection may operate at Tj>=125˚C. ■ Electrical Characteristics Unless otherwise specified, condition shall be VIN=15V, VO=10V, IO=0.5A, R1=390Ω (PQ30RV1/PQ30RV11) VIN=15V, VO=10V, IO=1.0A, R1=390Ω (PQ30RV2/PQ30RV21) Parameter Symbol Conditions Input voltage VIN R2=94Ω to 8.5kΩ PQ30RV1/PQ30RV2 Output voltage VO R2=84Ω to 8.7kΩ 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=3.3µF PQ30RV1/PQ30RV2 Reference voltage Vref PQ30RV11/PQ30RV21 Temperature coefficient of reference voltage Tj=0 to 125˚C TcVref *3, IO=0.5A PQ30RV1/PQ30RV11 Dropout voltage Vi-O *3, IO=2A PQ30RV2/PQ30RV21 Quiescent current IO=0 Iq *3 (Ta=25˚C) MIN. 4.5 TYP. - MAX. 35 Unit V 1.5 - 30 V 45 55 1.20 1.225 - 0.3 0.5 0.5 55 65 1.25 1.25 ±1.0 1.0 1.0 2.5 1.30 1.275 - dB - - 0.5 V - - 7 mA Input voltage shall be the value when output voltage is 95% in comparison with the initial value. Fig.1 Test Circuit VIN 1 ● R2 3 ● 0.33µF A VO 47µF 2 ● IO A 4 ● + R1 Iq 390Ω R2 VO=Vref X 1+ --------R1 V Vref [R1=390Ω,Vref =1.25V] RL V Fig.2 Test Circuit of Ripple Rejection 1 ● ei 47µF 2 ● ~ R2 3 ● VIN 0.33µF 4 ● R1 390Ω + + IO + Cref 3.3µF V ~ eo RL IO=0.5A f=120Hz (sine wave) ei=0.5Vrms RR=20 log (ei/eo) =1.25X R2 1+ --------R1 % % V % Low Power-Loss Voltage Regulators Fig.3 Power Dissipation vs. Ambient Temperature (PQ30RV1/PQ30RV11) Fig.4 Power Dissipation vs. Ambient Temperature (PQ30RV2/PQ30RV21) PD1 :No heat sink PD2 :With infinite heat sink PD1 :No heat sink PD2 :With infinite heat sink 20 Power dissipation PD (W) Power dissipation PD (W) 20 PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 15 PD2 10 5 PD1 PD2 15 10 5 PD1 0 -20 0 50 100 150 Ambient temperature Ta (˚C) Note) Oblique line portion:Overheat protection may operate in this area. Fig.5 Overcurrent Protection Characteristics (PQ30RV1/PQ30RV11) 0 -20 50 100 150 Ambient temperature Ta (˚C) Note) Oblique line portion:Overheat protection may operate in this area. Fig.6 Overcurrent Protection Characteristics (PQ30RV2/PQ30RV21) 100 Relative output voltage (%) Relative output voltage (%) 100 80 60 40 20 0 80 60 40 20 0 0 0.5 1.0 1.5 Output current IO (A) Reference voltage deviation ∆Vref (mV) R1 390Ω 25 20 15 10 5 10 2 3 10 R2 (Ω) 10 4 1.0 2.0 3.0 Output current IO (A) 4.0 Fig.8 Reference Voltage Deviation vs. Junction Temperature 30 0 101 0 2.0 Fig.7 Output Voltage Adjustment Characteristics Output voltage VO (V) 0 10 5 10 0 -10 -25 R1=390Ω,R2=2.7kΩ,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) PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 Fig.10 Output Voltage vs. Input Voltage (PQ30RV2/PQ30RV21) 15 15 R1=390Ω,R2=2.7kΩ,Tj=25˚C Output voltage VO (V) Output voltage VO (V) R1=390Ω,R2=2.7kΩ,Tj=25˚C 10 RL=∞ 5 RL=10Ω 0 5 10 15 Input voltage VIN (V) 5 RL=5Ω 20 Fig.11 Dropout Voltage vs. Junction Temperature (PQ30RV1/PQ30RV11) 0.5 R1=390Ω,R2=2.7kΩ VIN:input voltage shall be the 0.4 value when output voltage is 95% in comparison with the initial value Io=1A 0.3 0.75A 0.2 0.5A 0.1 0.25A 0 -20 25 50 75 100 0 Junction temperature Tj (˚C) 0 20 0.5 R1=390Ω,R2=2.7kΩ VIN:input voltage shall be the 0.4 value when output voltage is 95% in comparison with the initial value 0.3 IO=2A 1.5A 0.2 1A 0.1 0 -20 125 Fig.13 Quiescent Current vs. Junction Temperature 5 10 15 Input voltage VIN (V) Fig.12 Dropout Voltage vs. Junction Temperature (PQ30RV2/PQ30RV21) Dropout voltage Vi-O (V) Dropout voltage Vi-O (V) RL=∞ 0 0 0.5A 0 25 50 75 100 Junction temperature Tj (˚C) 125 Fig.14 Ripple Rejection vs. Input Ripple Frequency (PQ30RV1/PQ30RV11) 5 80 VIN=35V IO=0 70 Ripple rejection RR (dB) Quiescent current Iq (mA) 10 4 3 2 1 0 -20 0 25 50 75 100 Junction temperature Tj (˚C) 125 Cref=3.3µF 60 50 No Cref 40 30 20 Tj=25˚C R1=390Ω,R2=2.7kΩ 10 IO=0.5A,ei=0.5Vrms, 0 VIN=15V 0.1 1 10 100 Input ripple frequency f (kHz) Low Power-Loss Voltage Regulators Fig.15 Ripple Rejection vs. Input Ripple Frequency (PQ30RV2/PQ30RV21) PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 Fig.16 Ripple Rejection vs. Output Current (PQ30RV1/PQ30RV11) 80 80 Cref=3.3µF 60 No Cref 50 40 30 20 Tj=25˚C R1=390Ω,R2=2.7kΩ 10 IO=0.5A,ei=0.5Vrms, 0 VIN=15V 0.1 1 10 100 Input ripple frequency f (kHz) Fig.17 Ripple Rejection vs. Output Current (PQ30RV2/PQ30RV21) Ripple rejection RR (dB) Ripple rejection RR (dB) 70 No Cref 60 50 40 Tj=25˚C R1=390Ω,R2=2.7kΩ VIN=15V,ei=0.5Vrms,f=120Hz 30 0 0.2 0.4 0.6 0.8 Output current IO (A) No Cref 50 40 Tj=25˚C R1=390Ω,R2=2.7kΩ VIN=15V,ei=0.5Vrms,f=120Hz 0.2 0.4 0.6 0.8 Output current IO (A) 1.0 Fig.18 Output Peak Current vs. Dropout Voltage (PQ30RV1/PQ30RV11) 2.0 1.5 Tj=25˚C 1.0 R1=390Ω,R2=2.7kΩ 0 5 10 Dropout voltage Vi-O (V) 1.0 Fig.19 Output Peak Current vs. Dropout Voltage (PQ30RV2/PQ30RV21) 60 0 Output peak current IOP (A) Ripple rejection RR (dB) Cref=3.3µF Cref=3.3µF 30 80 70 70 15 Fig.20 Output Peak Current vs. Junction Temperature (PQ30RV1/PQ30RV11) Output peak current IOP (A) Output peak current IOP (A) 2.0 4 3 Tj=25˚C R1=390Ω,R2=2.7kΩ 0 5 10 Dropout voltage Vi-O (V) 15 VIN-VO=5V 1.5 2V 0.5V 1.0 0.5 -20 IOP:Output current when output voltage is 95% in comparison with the initial value R1=390Ω,R2=2.7kΩ 0 25 50 75 100 Junction temperature Tj (˚C) 125 Low Power-Loss Voltage Regulators PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 Fig.21 Output Peak Current vs. Junction Temperature (PQ30RV2/PQ30RV21) Output peak current IOP (A) 5 4 VIN-VO=5V 2V 3 0.5V IOP:Output current when output voltage is 95% in comparison with the initial value R1=390Ω,R2=2.7kΩ 2 -20 0 25 50 75 100 Junction temperature Tj (˚C) 125 ■ Standard Connection D1 VO 2 ● R2 4 ● 3 ● CIN D1 R1 + Cref 390Ω to10kΩ + CO Load 1 ● VIN : 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 0.33µF and 47µF, 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 390Ω.But value up 10kΩdoes not cause any trouble. Low Power-Loss Voltage Regulators PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 ■ ON/OFF Operation D1 1 ● VIN D2 4 ● R1 + 3 ● VADJ R2 VO 2 ● R2 CIN D2 VADJ R1 R3 CO RL RD RL VO’ 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 10Ω 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. ■ An Example of ON/OFF Circuit Using the 1-chip Microcomputer Output Port (PQ30RV1) <Specification> 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=52Ω (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 Ω If R1=10k Ω, we get R2=11.48 X R1=114.8k Ω and IOH as follows, ingnoring RL (52 Ω) : IOH=1.6V X (R1+R2) /R1 X R2 =1.6V X (10k Ω+114.8k Ω) /10k Ω X 114.8k Ω=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 Ω, R2=115k Ω, R3=0 Ω, VIN=17V, RL=52 Ω, and D1=1S2076A (Hitachi). Low Power-Loss Voltage Regulators PQ30RV1/PQ30RV11/PQ30RV2/PQ30RV21 Output voltage VO (V) Output Voltage vs. Control Voltage (PQ30RV1) VIN=17V RL=52Ω R1=10kΩ R2=115kΩ R3=0 D1=1S2076A 15 10 5 0 1 2 3 4 Control voltage VC (V) 5 ■ Model Line-ups for Lead Forming Type Output voltage Output voltage precision:±2.5% 5V output 2A output PQ30RV1B PQ30RV2B ■ Outline Dimensions (PQ30RV1B/PQ30RV2B) (Unit : mm) 4.5±0.2 10.2MAX ) .5 16.4±0.7 ±0 (5 (2.0) φ3.2±0.1 PQ30RV1 (1.5) 4-1.4 +0.3 -0 4-0.6 +0.2 -0.1 (0.5) (3.2) 3-(2.54) 4.4MIN (24.6) 7.4±0.2 3.6±0.2 2.8±0.2 5±0.5 8.2±0.7 · ( ) : Typical value · Radius of lead forming portion:R=0.5 to 1.5mm 1 ● 2 ● 3 ● 4 ● Internal connection diagram 1 2 Specific IC 3 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.