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| Low Power-Loss Voltage Regulators PQ20VZ51/PQ20VZ11 PQ20VZ51/PQ20VZ11 Variable Output, Surface Mount Type Low Power-Loss Voltage Regulators s Features Low power-loss (Dropout voltage : 0.5V) Compact surface mount package Both the 0.5A output PQ20VZ51 and the 1A output PQ20VZ11 have high-precision outputs (Reference voltage precision : 2.0%) Variable output type (Output voltage variable range : 1.5V to 20V) Built-in ON-OFF control function Low dissipation current at OFF-state (Iqs : MAX.5A) Tape packaged type is available. (330mm reel : 3 000pcs.,PQ20VZ5U/PQ20VZ1U) s Outline Dimensions 6.6MAX 5.20.5 3 2.30.5 (Unit : mm) (0.5) 9.7MAX 20VZ51 5.50.5 (1.7) (0to0.25) 0.5 +0.2 -0.1 2.5MIN (0.9) 4-(1.27) (0.5) s Applications Car audio equipment VCR 12345 Internal connection diagram 1 2 Specific IC 5 1 DC input (VIN) 2 ON/OFF control terminal (VC) 3 DC output (VO) 4 Output voltage minute adjustment terminal (VADJ) 5 GND Heat sink is common to 3 (VO). 3 4 s Absolute Maximum Ratings Parameter *1 *1 *1 (Ta=25C) Symbol VIN VC VADJ IO PD Tj Topr Tstg Tsol Rating Unit 24 V 24 V 7 V 0.5 A 1 W 8 C 150 -20 to +80 C -40 to +150 C 260 (For 10s) C *2 *3 *1 *2 *3 Input voltage Output contorol voltage Output adjustment terminal Voltage PQ20VZ51 Output current PQ20VZ11 Power dissipation (With infinite heat sink) Junction temperature Operating temperature Storage temperature Soldering temperature All are open except GND and applicable terminals. Overheat protection may operate at 125C= " 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 Output voltage Load regulation Line regulation Ripple rejection Reference voltage Temperature coefficient of reference voltage Dropout voltage Quiescent current ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control Output OFF-state consumption current *4 *5 *6 *7 PQ20VZ51/PQ20VZ11 Unless otherwise specified, VIN=12V, Vo=10V,*4, R1=1k, Vc=2.7V(Ta=25C) Symbol Vi VO RegL RegI RR Vref TCVref Vi-O Iq VC(ON) IC(ON) VC(OFF) IC(OFF) Iqs Conditions VO=1.5V R2=225 to 14.6k *5 VIN=11 to 21V, IO=5mA Refer to Fig. 2 *4 Tj=0 to 125C, Io=5mA *4,*6 IO=0 IO=0 VC=0.4V MIN. 4.5 1.5 45 1.225 2.0 - TYP. 0.2 0.2 60 1.25 1.0 0.2 4 - MAX. 20 2.0 2.5 1.275 0.5 7 200 0.8 2.0 5.0 Unit V V % % dB V % V mA V A V A A PQ20VZ51:Io=0.3A, PQ20VZ11:Io=0.5A PQ20VZ51:Io=5mA to 0.5A, PQ20VZ11:Io=5mA to 1.0A Input voltage shall be the value when output voltage is 95% in comparison with the initial value. In case of opening control terminal 2, output voltage turns off. Fig.1 Test Circuit Fig.2 Test Circuit of Ripple Rejection VIN 0.33F 1 q 3 q R2 4 q Iq 1k R1 V 47F VO 0.33F 1 q 2 q VC 3 q R2 4 q R1 1k 47F 47F + q VC 2 A + IO 5 q ~ ei VIN IO + V RL 5 q V eo ~ RL A A R2 R2 VO=Vref X 1+- = 1.25 X 1+R1 R1 [R1=1k,Vref = 1.25V] f=120Hz (sine wave) ei=0.5Vrms IO=0.3A RR=20 log (ei/eo) Low Power-Loss Voltage Regulators Fig.3 Power Dissipation vs. Ambient Temperature 10 PD Power dissipation PD (W) PQ20VZ51/PQ20VZ11 Fig.4 Overcurrent Protection Characteristics (Typical Value) 100 80 PQ20VZ51 60 PQ20VZ11 40 20 0 0.5 1.0 1.5 2.0 Output current IO (A) With infinite heat sink Relative output voltage (%) Reference voltage deviation Vref (mV) 5 0 20 40 60 80 100 Ambient temperature Ta (C) Note) Oblique line portion : Overheat protection may operate in this area. 0 -20 Fig.5 Output Voltage Adjustment Characteristics 20 R1=1k Output voltage VO (V) Fig.6 Reference Voltage Deviation vs. Junction Temperature 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -25 VIN=12V, IO=5mA , VC=2.7V R1=1k,R2=7k Ci=0.33F C0=47F , 15 10 5 0 0.1 1 R2 (k) 10 100 0 25 50 75 100 Junction temperature Tj (C) 125 Fig.7 Output Voltage vs. Input Voltage (PQ20VZ51) 16 R1=1k ,R2=7k VC=2.7V , Ci=0.33F , C0=47F Tj=25C Fig.8 Output Voltage vs. Input Voltage (PQ20VZ11) 16 14 Output voltage VO (V) Output voltage VO (V) 14 12 10 8 6 4 2 0 0 2 R1=1k ,R2=7k VC=2.7V , Ci=0.33F , C0=47F Tj=25C 12 10 8 6 4 2 0 RL= RL=20 RL=10 RL= RL=40 RL=20 4 6 8 10 12 Input voltage VIN (V) 14 16 0 2 4 6 8 10 12 Input voltage VIN (V) 14 16 Low Power-Loss Voltage Regulators Fig.9 Dropout Voltage vs. Junction Temperature (PQ20VZ51) 0.30 Dropout voltage Vi-O (V) PQ20VZ51/PQ20VZ11 Fig.10 Dropout Voltage vs. Junction Temperature (PQ20VZ11) 0.40 0.25 0.20 0.15 0.10 IO=0.1A 0.05 0 -20 IO=0.4A IO=0.3A IO=0.2A Dropout voltage Vi-O (V) IO=0.5A 0.35 0.30 0.25 0.20 IO=1.0A IO=0.75A IO=0.5A 0.15 0.10 0.05 IO=0.25A 0 20 40 60 80 100 120 Junction temperature Tj (C) -20 0 20 40 60 80 100 120 Junction temperature Tj (C) Fig.11 Quiescent Current vs. Junction Temperature 5 4 3 2 1 0 -20 0 25 50 75 100 Junction temperature Tj (C) 125 VIN=12V IO=0A VC=2.7V Fig.12 Ripple Rejection vs. Input Ripple Frequency 65 60 Ripple rejection RR (dB) Quiescent current Iq (mA) PQ20VZ11 55 50 45 40 Tj=25C IO=0.3A 35 VIN=12V ei=0.5Vrms (sine wave) R1=1k RR=20log (ei/e0) 30 R2=7k 0.1 1 10 100 Input ripple frequency f (kHz) PQ20VZ51 Fig.13 Ripple Rejection vs. Output Current (PQ20VZ51) 100 Ripple rejection RR (dB) Fig.14 Ripple Rejection vs. Output Current (PQ20VZ11) 100 90 Tj=25C VIN=12V R1=1k R2=7k ei=0.5Vrms f=120Hz(sine wave) 90 80 70 60 50 40 30 20 10 0 Ripple rejection RR (dB) Tj=25C VIN=12V R1=1k R2=7k ei=0.5Vrms f=120Hz (sine wave) 80 70 60 50 40 30 20 10 0.1 0.2 0.3 0.4 Output current IO (A) 0.5 0 0.5 Output current IO (A) 1.0 Low Power-Loss Voltage Regulators Fig.15 Output Peak Current vs. Dropout Voltage (PQ20VZ51) 1.7 Tj=25C PQ20VZ51/PQ20VZ11 Fig.16 Output Peak Current vs. Dropout Voltage (PQ20VZ11) 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 0 1 2 IOP:Output current when output voltage is 95% in comparison with the initial value 3 4 5 6 7 8 9 10 Dropout voltage Vi-O (V) Tj=25C Output peak current IOP (A) 1.6 1.5 1.4 1.3 1.2 1.1 1 0 1 2 IOP:Output current when output voltage is 95% in comparison with the initial value 3 4 5 6 7 8 9 10 Dropout voltage Vi-O (V) Fig.17 Output Peak Current vs. Junction Temperature (PQ20VZ51) 1.5 VIN-VO=2V Fig.18 Output Peak Current vs. Junction Temperature (PQ20VZ11) Output peak current IOP (A) Output peak current IOP (A) Output peak current IOP (A) 1.4 1.3 1.2 1.1 0.5V 1V VIN-VO=2V 2.0 1V 0.5V 1.5 IOP:Output current when output voltage is 95% in comparison with the initial value -20 0 25 50 75 100 Junction temperature Tj (C) 125 1.0 IOP:Output current when output voltage is 95% in comparison with 0.9 the initial value -20 0 25 50 75 100 125 Junction temperature Tj (C) Fig.19 Power Dissipation vs. Ambient Temperature 3 Power dissipation PD (W) Cu area 740mm2 2 Cu area 180mm2 Cu area 100mm2 Cu area 70mm2 Cu area 36mm2 Material : Glass-cloth epoxy resin Size : 50X50X1.6mm3 Cu thickness : 35m PWB PWB Cu 1 0 -20 0 20 40 60 80 Ambient temperature Ta (C) 100 Low Power-Loss Voltage Regulators s Adjustment of Output Voltage PQ20VZ51/PQ20VZ11 Output voltage is able to be set from 1.5V to 20V when resistors R1,R2 are attached to,, terminals. As for the external resistors to set output voltage, refer to the following figure or Fig.5. 3 R2 + 5 Vref 4 R1 VO VO=VrefX(1+R2/R1) =1.25X(1+R2/1000) (R1=1k,Vref = 1.25V) s ON/OFF Operation As shown in the figure,ON/OFF control function is available. DC input 1 q 3 q 2 q 5 q VIN CO + VO ON/OFF signal High : Output ON Low or Open : Output OFF s Model Line-ups for Tape-packaged Products Sleeve-packaged products Standard type High-precision output type PQ20VZ51 PQ20VZ11 Tape-packaged products Standard type High-precision output type PQ20VZ5U PQ20VZ1U Output current 0.5A output 1.0A output Load |
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