Low Power-Loss Voltage Regulators PQ20VZ51/PQ20VZ11 PQ20VZ51/PQ20VZ11 Variable Output, Surface Mount Type Low Power-Loss Voltage Regulators ■ Outline Dimensions (Unit : mm) 2.3±0.5 6.6MAX 5.2±0.5 (0.5) 3 (1.7) 5.5±0.5 20VZ51 (0to0.25) 0.5 +0.2 -0.1 2.5MIN 4-(1.27) (0.9) ¡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.5µA) ¡Tape packaged type is available. (φ330mm reel : 3 000pcs.,PQ20VZ5U/PQ20VZ1U) 9.7MAX ■ Features (0.5) ■ Applications ¡Car audio equipment ¡VCR 12345 Internal connection diagram 1 2 3 Specific IC 5 4 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). ■ Absolute Maximum Ratings Parameter *1 *1 *1 *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 (Ta=25˚C) 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 All are open except GND and applicable terminals. Overheat protection may operate at 125˚C=<Tj=<150˚C For 10s · 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 ■ Electrical Characteristics PQ20VZ51/PQ20VZ11 Unless otherwise specified, VIN=12V, Vo=10V,*4, R1=1kΩ, Vc=2.7V(Ta=25˚C) 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 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=225Ω to 14.6kΩ MIN. 4.5 1.5 45 1.225 2.0 - *5 VIN=11 to 21V, IO=5mA Refer to Fig. 2 *4 Tj=0 to 125˚C, Io=5mA *4,*6 IO=0 IO=0 VC=0.4V *4 PQ20VZ51:Io=0.3A, PQ20VZ11:Io=0.5A *5 PQ20VZ51:Io=5mA to 0.5A, PQ20VZ11:Io=5mA to 1.0A *6 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. *7 Fig.1 Fig.2 Test Circuit VIN 0.33µF 1 ● 47µF 3 ● R2 ● VC 2 A 5 ● A 4 ● Iq 1kΩ A IO + R1 V R2 R2 VO=Vref X 1+- = 1.25 X 1+R1 R1 [R1=1kΩ,Vref = 1.25V] VO 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 µA V µA µA Test Circuit of Ripple Rejection 0.33µF 1 ● 47µF 3 ● R2 ~ ei V RL TYP. 0.2 0.2 60 1.25 ±1.0 0.2 4 - VIN 2 ● VC 5 ● 47µF 4 ● R1 1kΩ f=120Hz (sine wave) ei=0.5Vrms IO=0.3A RR=20 log (ei/eo) + IO + V ~ eo RL Low Power-Loss Voltage Regulators Fig.4 Overcurrent Protection Characteristics (Typical Value) Fig.3 Power Dissipation vs. Ambient Temperature 10 With infinite heat sink Relative output voltage (%) PD Power dissipation PD (W) PQ20VZ51/PQ20VZ11 5 0 -20 100 80 PQ20VZ51 60 PQ20VZ11 40 20 0 0 20 40 60 80 100 Ambient temperature Ta (˚C) Note) Oblique line portion : Overheat protection may operate in this area. Fig.6 Reference Voltage Deviation vs. Junction Temperature Fig.5 Output Voltage Adjustment Characteristics Reference voltage deviation ∆Vref (mV) 20 Output voltage VO (V) R1=1kΩ 15 10 5 0 0.1 0.5 1.0 1.5 2.0 Output current IO (A) 1 10 VIN=12V, IO=5mA , VC=2.7V R1=1kΩ,R2=7kΩ Ci=0.33µF, C0=47µF 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -25 100 0 25 50 75 100 Junction temperature Tj (˚C) R2 (kΩ) Fig.7 Output Voltage vs. Input Voltage (PQ20VZ51) R1=1kΩ ,R2=7kΩ VC=2.7V , Ci=0.33µF , C0=47µF Tj=25˚C 14 14 RL=∞ RL=40Ω 8 6 R1=1kΩ ,R2=7kΩ VC=2.7V , Ci=0.33µF , C0=47µF Tj=25˚C 16 12 10 Fig.8 Output Voltage vs. Input Voltage (PQ20VZ11) Output voltage VO (V) Output voltage VO (V) 16 RL=20Ω 4 2 125 12 10 RL=∞ RL=20Ω 8 6 RL=10Ω 4 2 0 0 0 2 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) PQ20VZ51/PQ20VZ11 Fig.10 Dropout Voltage vs. Junction Temperature (PQ20VZ11) 0.40 IO=0.5A Dropout voltage Vi-O (V) Dropout voltage Vi-O (V) 0.30 0.25 IO=0.4A 0.20 IO=0.3A 0.15 IO=0.2A 0.10 IO=0.1A 0.05 0 -20 IO=0.5A 0.15 0.10 1 Fig.12 Ripple Rejection vs. Input Ripple Frequency 0 125 Fig.13 Ripple Rejection vs. Output Current (PQ20VZ51) Ripple rejection RR (dB) Tj=25˚C VIN=12V R1=1kΩ R2=7kΩ ei=0.5Vrms f=120Hz (sine wave) 90 80 70 60 50 40 30 20 PQ20VZ11 55 50 PQ20VZ51 45 40 Tj=25˚C IO=0.3A 35 VIN=12V ei=0.5Vrms (sine wave) R1=1kΩ RR=20log (ei/e0) 30 R2=7kΩ 0.1 1 10 100 Input ripple frequency f (kHz) Fig.14 Ripple Rejection vs. Output Current (PQ20VZ11) 100 Tj=25˚C VIN=12V R1=1kΩ R2=7kΩ ei=0.5Vrms f=120Hz(sine wave) 90 Ripple rejection RR (dB) 0 25 50 75 100 Junction temperature Tj (˚C) 0 20 40 60 80 100 120 Junction temperature Tj (˚C) 60 2 100 IO=0.25A -20 Ripple rejection RR (dB) Quiescent current Iq (mA) 0.20 65 3 -20 IO=0.75A 0.25 0.05 VIN=12V IO=0A VC=2.7V 4 IO=1.0A 0.30 0 20 40 60 80 100 120 Junction temperature Tj (˚C) Fig.11 Quiescent Current vs. Junction Temperature 5 0.35 80 70 60 50 40 30 20 10 10 0 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) Fig.16 Output Peak Current vs. Dropout Voltage (PQ20VZ11) 2.5 1.7 Tj=25˚C 1.6 1.5 1.4 1.3 1.2 IOP:Output current when output voltage is 95% in comparison with the initial value 1.1 1 0 1 2 Output peak current IOP (A) Output peak current IOP (A) PQ20VZ51/PQ20VZ11 2.3 2.2 2.1 2.0 1.9 IOP:Output current when output voltage is 95% in comparison with the initial value 1.8 1.7 1.6 3 4 5 6 7 8 9 10 Dropout voltage Vi-O (V) Fig.17 Output Peak Current vs. Junction Temperature (PQ20VZ51) Tj=25˚C 2.4 0 1 2 3 4 5 6 7 8 9 10 Dropout voltage Vi-O (V) Fig.18 Output Peak Current vs. Junction Temperature (PQ20VZ11) 1.5 Output peak current IOP (A) Output peak current IOP (A) VIN-VO=2V 1.4 1V 1.3 1.2 1.1 0.5V 1.0 IOP:Output current when output voltage is 95% in comparison with 0.9 the initial value -20 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 75 100 125 Junction temperature Tj (˚C) 0 25 50 75 100 Junction temperature Tj (˚C) Fig.19 Power Dissipation vs. Ambient Temperature Power dissipation PD (W) 3 Cu area 740mm2 2 PWB Cu area 180mm2 1 PWB Cu area 100mm2 Cu area 70mm2 Cu Cu area 36mm2 Material : Glass-cloth epoxy resin Size : 50X50X1.6mm3 Cu thickness : 35µm 0 -20 0 20 40 60 80 Ambient temperature Ta (˚C) 100 125 Low Power-Loss Voltage Regulators ■ PQ20VZ51/PQ20VZ11 Adjustment of Output Voltage 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. VO 3 R2 - 4 R1 + 5 VO=VrefX(1+R2/R1) =1.25X(1+R2/1000) (R1=1kΩ,Vref = 1.25V) Vref ON/OFF Operation As shown in the figure,ON/OFF control function is available. DC input 1 ● VO 3 ● 2 ● 5 ● CO + Load ■ VIN ON/OFF signal High : Output ON Low or Open : Output OFF ■ Model Line-ups for Tape-packaged Products Output current 0.5A output 1.0A output Sleeve-packaged products Standard type High-precision output type PQ20VZ51 PQ20VZ11 Tape-packaged products Standard type High-precision output type PQ20VZ5U PQ20VZ1U