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| Low Power-Loss Voltage Regulators PQ7DV10 PQ7DV10 Variable Output, (1.5 to 7V) 10A Output Low Power-loss Voltage Regulator s Feature 10A output type Low power-loss (Dropout voltage : MAX.0.5V at Io= 10A) Variable output type (1.5 to 7V) Low operating voltage (Minimum input voltage : 3.0V) High-precision reference voltage type (Reference voltage precision : 2.0%) TO-3P package Built-in ON/OFF control function Built-in overcurrent protection, overheat protection function s Outline Dimensions 17.0MAX 6 4.50.2 (Unit : mm) 2.00.2 PQ7DV10 39.0MAX 190.5 50.2 (1.4) 17.0MIN 3.7MAX 4-(2.54) (0.6) 5-0.80.2 12345 s Applications Power supplies for various electronic equipment such as personal computers 1 IC chip PNP Tr chip Controller Reference Comparator voltage 1 DC input (VIN) 2 6 2,6 DC output (VO) 3 GND 4 ON/OFF control terminal (VC) 4 5 Output voltage minute adjustment terminal (VADJ) 5 3 s Absolute Maximum Ratings Parameter *1 *1 *1 (Ta=25C) Symbol VIN VC VADJ IO PD1 PD2 Tj Topr Tstg Tsol Rating 10 10 5 10 2.2 60 150 -20 to +80 -40 to +150 260 (For 10s) Unit V V V A W W C C C C *2 Input voltage ON/OFF control terminal voltage Output adjustment terminal voltage Output current Power dissipation (No heat sink) Power dissipation (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 125= " 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 s Electrical Characteristics Parameter Input voltage Reference voltage Reference voltage Load regulation Line regulation Temperature coefficient of output voltage Ripple rejection Dropout voltage ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control Quiescent current PQ7DV10 (Unless otherwise specified, conditions shall be V IN=5V, Io=5A, Vo=3V(R1=2k) Ta=25C) Symbol VIN VO Vref RegL RegI TCVO RR Vi-o VC (ON) IC (ON) VC (OFF) IC (OFF) Iq Conditions IO=5mA to 10A VIN=4 to 10V Tj=0 to 125C VIN=3V, Io=10A VC=2.7V VC=0.4V IO=0A NIN. 3 1.5 1.225 45 2 TYP. 1.25 0.5 0.5 0.01 55 MAX. 10 7 1.275 2 2.5 0.5 20 0.8 - 40 17 Unit V V V % % %/C dB V V A V mA mA *3 *3 In case of opening control terminal 4,output voltage turns on. Fig.1 Test Circuit Fig.2 Test Circuit for Ripple Rejection VIN 0.33F 1 q 2 q 5 q Iq 2k R2 Vref R1 V 47F VO 0.33F 1 q 4 q VC 2.7V 2 q R2 5 q 47F + q VC 4 A + IO 3 q ~ ei VIN IO + V RL 3 q Vref R1 2k V eo ~ RL A A Vo=Vref X (1+R2/R1) =1.25 X (1+R2/R1) [R1=2k,Vref =1.25V] f=120Hz (sine wave) ei=0.5Vrms VIN=5V VO=3V (R1=2k) IO=0.5A RR=20 log (ei/eo) Fig.3 60 50 40 30 20 10 Power Dissipation vs. Ambient Temperature PD2 Fig.4 100 Overcurrent Protection Characteristics(Typical Value) Relative output voltage (%) Power dissipation PD (W) 80 60 40 PD1 :No heat sink PD2 :With infinite heat sink 20 0 PD1 0 20 40 60 80 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area. 0 -20 0 5 10 15 Output current IO (A) 20 Low Power-Loss Voltage Regulators Fig.5 8 7 Output voltage VO (V) PQ7DV10 Fig.6 10 Output voltage deviation VO (mV) Output Voltage Adjustment Characteristics R1=2k Output Voltage Deviation vs. Junction Temperature 6 5 4 3 2 1 0 102 103 R2 () 104 VIN=5V 8 VO=3V(R1=2k,R2=2.8k) 6 IO=2.5A 4 2 0 -2 -4 -6 -8 -10 -25 0 25 50 75 100 Junction temperature Tj (C) 125 Fig.7 4 Output Voltage vs. Input Voltage Ta =25C VO=3V(R1=2k,R2=2.8k) RL=0.6 RL= RL=0.3 2 Fig.8 160 Circuit Operating Current vs. Input Voltage Ta =25C VO=3V(R1=2k,R2=2.8k) Output voltage VO (V) 3 Circuit operating current IBIAS (mA) 120 80 RL=0.3 40 RL=0.6 1 RL= 0 0 1 2 3 4 Input voltage VIN (V) 5 0 0 1 2 3 4 Input voltage VIN (V) 5 Fig.9 0.5 0.4 0.3 0.2 Dropout Voltage vs. Junction Temperature VO=3V(R1=2k,R2=2.8k) VIN :Input voltage when output voltage is 95% in comparison with the initial value Fig.10 Ripple Rejection vs. Junction Temperature 100 Ripple rejection RR (dB) Dropout voltage Vi-O (V) 80 60 40 VIN=7V VO=3V(R1=2k,R2=2.8k) IO =0.5A,ei=0.5Vrms f=120Hz 0 25 50 75 100 Junction temperature Tj (C) 125 0.1 0 -25 20 0 -25 0 25 50 75 100 Junction temperature Tj (C) 125 Low Power-Loss Voltage Regulators Fig.11 Quiescent Current vs. Junction Temperature 20 VIN =5V VO=3V(R1=2k,R2=2.8k) IO =0A PQ7DV10 Fig.12 Ripple Rejection vs. Input Ripple Frequency 100 80 Quiescent current Iq (mA) 15 Ripple rejection RR (dB) 60 40 VIN=5V 20 VO=3V(R1=2k,R2=2.8k) Io=0.5A,ei=0.5Vrms, Ta =25C 0 0.1 1 10 Input ripple frequency f (kHz) 10 5 0 -25 0 25 50 75 100 Junction temperature Tj (C) 125 100 s Typical Application VIN 1 q 2 q R2 5 q 3 q R1 2k + VO 4 q CIN CO ON/OFF Signal High or Open Low :Output ON :Output OFF Load |
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