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| Low Power-Loss Voltage Regulators PQ20VZ51/PQ20VZ11 PQ20VZ51/PQ20VZ11 Variable Output, Surface Mount Type Low Power-Loss Voltage Regulators s q Features 2.5MIN Low power-loss (Dropout voltage: 0.5V) q Compact surface mount package q Both the 0.5A output PQ20VZ51 and the 1A output PQ20VZ11 have high-precision outputs (Reference voltage precision: 2.0%) q Variable output type (Output voltage variable range: 1.5V to 20V) q Built-in ON-OFF control function q Low dissipation current at OFF-state (Iqs: MAX.5A) q Tape packaged type is available. (330mm reel: 3 000pcs.,PQ20VZ5U/PQ20VZ1U) s Outline Dimensions 6.6MAX 5.20.5 2.30.5 (Unit : mm) (0.5) 9.7MAX 5.50.5 20VZ51 (1.7) (0 to 0.25) 0.5 +0.2 -0.1 4-(1.27) (0.5) s q Applications Car audio equipment q VCR Internal connection diagram Specific IC DC input(VIN) ON/OFF control terminal(VC) DC output(VO) Output voltage minute adjustment terminal(VADJ) GND Heat sink is common to (VO). s 1 1 1 Absolute Maximum Ratings Parameter 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 Symbol VIN VC VADJ IO PD Tj Topr Tstg Tsol (Ta=25C) Rating Unit 24 V 24 V 7 V 0.5 A 1 8 W 150 C -20 to +80 C -40 to +150 C 260 (For 10s) C 2 3 1 2 3 All are open except GND and applicable terminals. Overheat protection may operate at 125C<=Tj<=150C For 10s *Please refer to the chapter " Handling Precautions ". Notice 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 device specification sheets before using any SHARP device. Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/ (0.9) Low Power-Loss Voltage Regulators PQ20VZ51/PQ20VZ11 s Electrical Characteristics Parameter Symbol Vi VO RegL RegI RR Vref TCVref Vi-O Iq VC(ON) IC(ON) VC(OFF) IC(OFF) Iqs Unless otherwise specified, VIN=12V, Vo=10V,4, R1=1k, Vc=2.7V(Ta=25C) 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 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 , output voltage turns off. Fig.1 Test Circuit VIN 0.33F 47F R2 Fig.2 Test Circuit of Ripple Rejection 0.33F 1 3 4 VO 1 2 3 47F R2 + VC 2 IC A + IO ei VIN 5 V RL 5 4 47F R1 1k IO + V eo RL A A Iq 1k R1 V VC VO=Vref x R2 1+ ----- R1 [R1=1k,Vref Nearly=1.25V] f=120Hz(sine wave) ei(rms)=0.5V IO=0.3A RR=20 log(ei(rms)/eo(rms)) Low Power-Loss Voltage Regulators Fig.3 Power Dissipation vs. Ambient Temperature 10 PQ20VZ51/PQ20VZ11 Fig.4 Overcurrent Protection Characteristics (Typical Value) 100 Relative output voltage (%) PD : With infinite heat sink Power dissipation PD (W) 80 PQ20VZ51 60 PQ20VZ11 40 20 0 5 0 20 40 60 80 100 Ambient temperature Ta (C) Note) Oblique line portion : Overheat protection may operate in this area. 0 -20 0.5 1.0 1.5 2.0 Output current IO (A) Fig.5 Output Voltage Adjustment Characteristics 20 R1=1k Output voltage VO (V) Fig.6 Reference Voltage Deviation vs. Junction Temperature Reference voltage deviation Vref (mV) 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 Output voltage VO (V) Fig.8 Output Voltage vs. Input Voltage (PQ20VZ11) 16 14 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 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 PQ20VZ51/PQ20VZ11 Fig.10 Dropout Voltage vs. Junction Temperature (PQ20VZ11) 0.40 Dropout voltage Vi-O (V) 0.25 0.20 0.15 0.10 Dropout voltage Vi-O (V) IO=0.5A IO=0.4A IO=0.3A IO=0.2A IO=0.1A 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 0.05 0 -20 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(rms)=0.5V (sine wave) R1=1k RR=20 log(ei(rms)/eo(rms)) 30 R2=7k 0.1 1 10 100 Input ripple frequency f (kHz) PQ20VZ51 Fig.13 Ripple Rejection vs. Output Current (PQ20VZ51) 100 90 Ripple rejection RR (dB) Fig.14 Ripple Rejection vs. Output Current (PQ20VZ11) 100 90 Tj=25C VIN=12V R1=1k R2=7k ei(rms)=0.5V f=120Hz(sine wave) Ripple rejection RR (dB) 80 70 60 50 40 30 20 10 0 0.1 Tj=25C VIN=12V R1=1k R2=7k ei(rms)=0.5V f=120Hz (sine wave) 80 70 60 50 40 30 20 10 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 Output peak current IOP (A) 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 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 Output peak current IOP (A) Fig.18 Output Peak Current vs. Junction Temperature (PQ20VZ11) Output peak current IOP (A) VIN-VO=2V 2.0 1V VIN-VO=2V 1.4 1.3 1.2 1.1 0.5V 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 1 Cu area 100mm2 Cu area 70mm2 Cu area 36mm2 Material : Glass-cloth epoxy resin Size : 50x50x1.6mm Cu thickness : 35m PWB PWB Cu 0 -20 0 20 40 60 80 Ambient temperature Ta (C) 100 Low Power-Loss Voltage Regulators PQ20VZ51/PQ20VZ11 s Setting 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 figure below or Fig.5. 3 R2 - + 5 Vref 4 R1 VO VO=Vrefx(1+R2/R1) (R1=1k,Vref Nearly=1.25V) s ON/OFF Operation As shown in the figure,ON/OFF control function is available. DC input 1 3 2 5 VO VIN ON/OFF signal High : Output ON Low or Open : Output OFF s Model Line-ups for Tape-packaged Products Sleeve-packaged products Tape-packaged products Output current High-precision output type High-precision output type 0.5A output PQ20VZ51 PQ20VZ5U 1.0A output PQ20VZ11 PQ20VZ1U Load CO + NOTICE q The circuit application examples in this publication are provided to explain representative applications of SHARP devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes no responsibility for any problems related to any intellectual property right of a third party resulting from the use of SHARP's devices. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. SHARP reserves the right to make changes in the specifications, characteristics, data, materials, structure, and other contents described herein at any time without notice in order to improve design or reliability. Manufacturing locations are also subject to change without notice. Observe the following points when using any devices in this publication. SHARP takes no responsibility for damage caused by improper use of the devices which does not meet the conditions and absolute maximum ratings to be used specified in the relevant specification sheet nor meet the following conditions: (i) The devices in this publication are designed for use in general electronic equipment designs such as: - - - Personal computers - -- Office automation equipment - -- Telecommunication equipment [terminal] - - - Test and measurement equipment - - - Industrial control - -- Audio visual equipment - -- Consumer electronics (ii) Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when SHARP devices are used for or in connection with equipment that requires higher reliability such as: - -- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.) - - - Traffic signals - - - Gas leakage sensor breakers - - - Alarm equipment - -- Various safety devices, etc. (iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely high level of reliability and safety such as: - - - Space applications - -- Telecommunication equipment [trunk lines] - -- Nuclear power control equipment - -- Medical and other life support equipment (e.g., scuba). q q q Contact a SHARP representative in advance when intending to use SHARP devices for any "specific" applications other than those recommended by SHARP or when it is unclear which category mentioned above controls the intended use. If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade Control Law of Japan, it is necessary to obtain approval to export such SHARP devices. This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, in whole or in part, without the express written permission of SHARP. Express written permission is also required before any use of this publication may be made by a third party. Contact and consult with a SHARP representative if there are any questions about the contents of this publication. q q q |
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