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| Low Power-Loss Voltage Regulators PQ20WZ51/PQ20WZ11 PQ20WZ51/PQ20WZ11 Variable Output, General Purpose, Surface Mount Type Low Power-Loss Voltage Regulator s q Features s Outline Dimensions 6.6 MAX. 5.2 0.5 2.3 0.5 (Unit : mm) Low power-loss (Dropout voltage : MAX. 0.5V) q Surface mount package (equivalent to SC-63) q Variable output voltage (3.0 to 20V) q Output current (0.5A : PQ20WZ51) (1.0A : PQ20WZ11) q Reference voltage precision : 2.5% q Built-in ON/OFF control function q Low dissipation current at OFF-state (Iqs : MAX. 5A) q Built-in overcurrent, overheat protection functions, ASO protection circuit q Available tape-packaged products (o330mm reel : 3 000 pcs., PQ20WZ5U/1U) ( 0.5 ) 3 9.7 MAX. 5.5 0.5 Model No. Epoxy resin ( 1.7 ) 2.5 MIN. 0.5 0.2 0.1 4 - ( 1.27 ) ( 0.5 ) ( 0.9 ) s q Applications 1 2 3 4 5 Personal computers q CD-ROM drives q Power supplies for various OA equipment Internal connection diagram 1 3 Specific IC 2 5 4 DC input(VIN ) ON/OFF control terminal( Vc ) DC output ( Vo ) Output voltage adjustment terminal (VADJ ) GND Heat sink is common to terminal 3 ( Vo ) 1 2 3 4 5 s Absolute Maximum Ratings Parameter Symbol VIN Vc VADJ Io PD Tj Topr Tstg Tsol Rating PQ20WZ51 PQ20WZ11 24 24 5 1.0 0.5 8 150 -20 to +80 -40 to +150 260 (Ta=25C) Unit V V V A W C C C C 1 Input voltage control terminal voltage 1 Output adjustment terminal voltage Output current Power dissipation(with infinite heat sink) 2 Junction temperature Operating temperature Storage temperature 3 Soldering temperature 1 ON/OFF 1 2 All are open except GND and applicable terminals. Overheat protection may operate at 125<=Tj<=150C 3 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/ Low Power-Loss Voltage Regulators PQ20WZ51/PQ20WZ11 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 7 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 (Unless otherwise specified, conditions shall be VIN=5V, Vo=3.3V,4,R1=2k, R2=500, Vc=2.7V, Ta=25C) Symbol Conditions MIN. TYP. MAX. Unit -- 24 -- V VIN 3.5 -- V Vo 20 -- 3.0 5 % RegL 2.0 -- -- VIN=4 to 10V, Io=5mA RegI % 2.5 -- -- Refer to Fig. 2 RR dB -- 60 45 4 Vref V 2.706 2.64 2.574 Tj=0 to 125C, Io=5mA VcVref % -- 1.0 -- 4, 6 Vi-o V 0.5 -- -- Io=0A Iq mA 8 -- -- -- Vc(ON) V -- -- 2.0 -- Ic(ON) A 200 -- -- Vc(OFF) Io=0A V 0.8 -- -- Io=0A, Vc=0.4V Ic(OFF) A 2.0 -- -- Io=0A, Vc=0.4V Iqs A 5.0 -- -- PQ20WZ51:Io=0.3A, PQ20WZ11:Io=0.5A PQ20WZ51:Io=5mA to 0.5A, PQ20WZ11: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 VIN 0.33F 1 3 Fig. 2 Test Circuit for Ripple Rejection 47F R2 Vref R1 V VO A IO 0.33F 1 3 R2 ei VIN 2 5 4 VC 2 5 4 + RL 47F R1 2k IO + RL V V eo A IC A Iq 2k VC 2.7V R2 VO=Vref X 1+ ----- R1 [R1=2k,Vref Nearly =2.64V] f=120Hz(sine wave) ei(rms)=0.5V IO=0.3A RR=20 log(ei(rms)/eo(rms)) VIN=5V VO=3.3V(R1=2k) Fig. 3 Power Dissipation vs. Ambient Temperature 10 8 PD PD:With infinite heat sink Fig. 4 Overcurrent Protection Characteristics (Typical Value) (PQ20WZ51) 4 VO=3.3V Power dissipation PD (W) Output voltage VO (V) 3 5 2 Vi-O =0.5V Vi-O =1V Vi-O =2V Vi-O =3V 1 50 80 100 150 0 Ambient temperature Ta (C) Note) Oblique line portion : Overheat protection may operate in this area. 0 -20 0 0 0.5 1.0 1.5 Output current IO (A) 2.0 Low Power-Loss Voltage Regulators Fig. 5 Overcurrent Protection Characteristics (Typical Value) (PQ20WZ11) 4 VO=3.3V Vi-O =0.5V Output voltage VO (V) 15 PQ20WZ51/PQ20WZ11 Fig. 6 Output Voltage Adjustment Characteristics 20 R1=2k Output voltage VO (V) 3 Vi-O =1V Vi-O =2V 2 Vi-O =3V 10 1 5 0 0 0 0.5 1.0 1.5 Output current IO (A) 2.0 0.1 1 R2 (k) 10 100 Fig. 7 Reference Voltage Deviation vs. Junction Temperature (Typical Value) Reference voltage deviation Vref (mV) Output voltage VO (V) VIN=7V 20 VO=3.3V(R1=2k,R2=0.5k) 15 IO=0.3A (PQ20WZ51) =0.5A (PQ20WZ11) 10 25 Fig. 8 Output Voltage vs. Input Voltage (PQ20WZ51) 8 7 6 5 4 3 2 1 RL= RL=11 RL=6.6 0 1 2 3 4 5 6 Input voltage VIN (V) 7 8 R1=2k ,R2=0.5k VC=2.7V , Ci=0.33F , C0=47F Tj=25C 5 0 -5 -10 -15 -20 -25 -25 0 25 50 75 100 Junction temperature Tj (C) 125 PQ20WZ51 PQ20WZ11 0 Fig. 9 Output Voltage vs. Input Voltage (PQ20WZ11) 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 Input voltage VIN (V) 7 8 RL= RL=6.6 RL=3.3 R1=2k ,R2=0.5k VC=2.7V , Ci=0.33F , C0=47F Tj=25C Fig.10 Dropout Voltage vs. Junction Temperature (PQ20WZ51) 0.2 0.19 VIN=3.135V, Vc=2.7V, R1=2k, R2=500, IO=0.3A Output voltage VO (V) Dropout voltage Vi-O (V) 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 -25 0 25 50 75 100 125 Junction temperature Tj (C) Low Power-Loss Voltage Regulators Fig.11 Dropout Voltage vs. Junction Temperature (PQ20WZ11) 0.18 0.17 PQ20WZ51/PQ20WZ11 Fig.12 Quiescent Current vs. Junction Temperature 5 4 3 2 1 0 -25 0 25 50 75 100 Junction temperature Tj (C) 125 VIN=5V IO=0A VC=2.7V R1=2k R2=500 Dropout voltage Vi-O (V) 0.16 0.15 0.14 0.13 0.12 0.11 0.1 VIN=3.135V, Vc=2.7V, R1=2k, R2=500, IO=0.5A -25 0 25 50 75 100 Junction temperature Tj (C) 125 Fig.13 Ripple Rejection vs. Input Ripple Frequency 80 75 Ripple rejection RR (dB) Fig.14 Ripple Rejection vs. Output Current (PQ20WZ51) 80 75 70 65 60 55 50 45 40 Tj=25C VIN=5V R1=2k R2=0.5k ei(rms)=0.5V f=120Hz (sine wave) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Output current IO (A) Ripple rejection RR (dB) 70 65 60 55 50 PQ20WZ51 PQ20WZ11 Tj=25C IO=0.3A 45 VIN=5V ei(rms)=0.5V (sine wave) R1=2k RR=20 log(ei(rms)/eo(rms)) 40 R2=0.5k 0.1 1 10 100 Input ripple frequency f (kHz) Fig.15 Ripple Rejection vs. Output Current (PQ20WZ11) 80 75 70 65 60 55 50 45 40 Tj=25C VIN=5V R1=2k R2=0.5k ei(rms)=0.5V f=120Hz (sine wave) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Output current IO (A) Ripple rejection RR (dB) Fig.16 Circuit Operating Current vs. Input Voltage (PQ20WZ51) 20 Quiescent current Iq (mA) Circuit operating current IBIAS (mA) Vc=2.7V, R1=2k, R2=500 (Vo=3.3V) 15 RL =6.6 10 RL =11 5 RL = 0 0 1 2 3 4 5 Input voltage VIN (V) 6 Low Power-Loss Voltage Regulators Fig.17 Circuit Operating Current vs. Input Voltage (PQ20WZ11) 30 25 20 15 RL =6.6 10 5 0 RL = Circuit operating current IBIAS (mA) PQ20WZ51/PQ20WZ11 Vc=2.7V, R1=2k, R2=500 (Vo=3.3V) RL =3.3 0 1 2 3 4 5 6 Input voltage VIN (V) 7 8 Fig.18 Power Dissipation vs. Ambient Temperature 3 Power dissipation PD (W) Cu area 740mm 2 Cu area 180mm2 Cu area 100mm2 Cu area 70mm2 Cu area 36mm2 2 PWB PWB Cu 1 0 -20 Material : Glass-cloth epoxy resin Size : 50 X 50 X 1.6mm Cu thickness : 35m 0 20 40 60 80 Ambient temperature Ta (C) 100 s Typical Application DC input Cin 1 3 VO R2 2 VIN 5 4 CO + R1 2k Load ON/OFF signal High : Output ON Low or Open : Output OFF s Model Line-ups for Tape-packaged Products Output current 0.5A output 1.0A output Sleeve-packaged products Tape-packaged products High-precision output type High-precision output type PQ20WZ51 PQ20WZ5U PQ20WZ11 PQ20WZ1U 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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