Low Power-Loss oltage Regulators PQR1 PQR1 ariable Output Low Power-Loss oltage Regulator Features Maximum output current: Compact resin full-mold package Low power-loss(dropout voltage: MX..) ariable output voltage(setting range: 1. to ) Built-in ON/OFF control function. Outline Dimensions 29.1MX.±.2 1.MIN 1.2MX PQR1.6±.2 ø.2±.1. 1..2.6.1 (Unit : mm).±.2 2.8±.2.8MX 1.6±. (1.) pplications Power supply for print concentration control of word processors Series power supply for motors and solenoid Series power supply for CRs and Ts ➀➁➂➃ (2.) (.) Internal connection diagram ➀ ➁ Specific IC ➃ ➂ ➀ ➁ ➂ ➃ DC input(in) DC output(o) GND Output voltage minute adjustment terminal(dj) bsolute Maximum Ratings (Ta=2) Parameter Symbol Rating Unit 1 1 2 Input 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 IN DJ PD1 PD2 Tj Topr Tstg Tsol 2. 2 1 2 to 8 to 1 26 (For 1s) W W 1 ll are open except GND and applicable terminals. 2 Overheat protection function may operate at 12<=Tj<=1. Please refer to the chapter " Handling Precautions ". Notice In the absence of confirmation by device specification sheets,shrp takes no responsibility for any defects that may occur in equipment using any SHRP devices shown in catalogs,data books,etc.contact SHRP in order to obtain the latest device specification sheets before using any SHRP device. Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
Low Power-Loss oltage Regulators PQR1 Electrical Characteristics (Unless otherwise specified, condition shall be IN=12, o=1, Io=1., =9Ω, Ta=2) Parameter Symbol Conditions MIN. TYP. MX. Unit Input voltage output voltage IN O. 1. Load regulation Line regulation Ripple rejection Reference voltage Temperature coefficient of reference voltage RegL RegI RR ref Tcref =m to IN=11 to 21, =.m Refer to Fig. 2 Tj= to 12,=m 1.22.. 1.2 ±1. 2. 2. 1.2 % % db %/ Dropout voltage i-o, =. 1., =2.2. Quiescent current = m Iq Input voltage shall be the value when output voltage is 9% in comparison with the initial value. Fig. 1 Test Circuit IN µf O.µF Iq 9Ω ref O=ref 1 [=9Ω,ref Nearly=1.2] Fig. 2 Test Circuit of Ripple Rejection ei IN.µF 9Ω µf eo =., IN=12, O=1 f=12hz(sine wave) ei(rms)=.rms RR=2 log(ei(rms)/eo(rms)) Fig. Power Dissipation vs. mbient Temperature PD1 :No heat sink PD2 :With infinite heat sink Power dissipation PD (W) 2 1 PD2 Fig. Overcurrent Protection Characteristics (Typical alue) 1 Relative output voltage (%) 8 6 2 PD1 1 1 mbient temperature Ta () Note) Oblique line portion : Overheat protection may operate in this area. 1. 2.... 6.. 8. Output current ()
Low Power-Loss oltage Regulators Fig. Output oltage djustment Characteristics (Typical value) Output voltage O () 2 2 1 1 9Ω PQR1 Fig. 6 Output oltage vs. Input oltage Output voltage O () 1 =9Ω,=2.kΩ,Tj=2 1 = =.Ω 1 1 1 1 1 (Ω) Fig. Dropout oltage vs. Junction Temperature. =9Ω,=2.kΩ Dropout voltage i O () IN ;.9O.6.. =. 2.2 1.1. 2 2 1 12 Junction temperature Tj () Fig. 9 Ripple Rejection vs. Output Current 9 1 Input voltage IN () Fig. 8 Ripple Rejection vs. Input Ripple Frequency 9 Cref=.µF 8 Ripple rejection RR (db) 6 No Cref 2 1 Tj=2,IN=12 =9Ω,=2.kΩ =.,ei(rms)=..1 1 1 1 1 Input ripple frequency f (khz) Fig.1 Output Peak Current vs. Dropout oltage (Typical value) Ripple rejection RR (db) 8 6 Cref=.µF No Cref Tj=2 =9Ω,=2.kΩ IN=12,ei(rms)=.,f=12Hz Output current () Output peak current P () 6. 6.. =9Ω,=2.kΩ,Ta=2 6 8 9 1 Dropout voltage i O ()
Low Power-Loss oltage Regulators PQR1 Fig.11 Ripple Rejection vs. Input Ripple Frequency Output peak current P () 6. 6.. IN=1,=9Ω,=2.kΩ 2 2 1 Dropout voltage i O () ON/OFF Operation D1 DJ D2 IN O CIN DJ D2 R CO O' RD High : Output OFF C Low : Output ON Equivalent Circuit in OFF-state ON/OFF operation is available by mounting externally D2 and R. When DJ is forcibly raised above REF(1.2 TYP)by applying the external signal, the output is turned off(pass transistor of regulator is turned off. When the output is OFF, DJ must be higher then REF MX., and at the same time must be lower than maximum rating. In OFF-state, the load current flows to from DJ through. Therefore the value of must be as high as possible. O'=DJ /() occurs at the load. OFF-state equivalent circuit up to 1kΩ is allowed. Select as high value of and as possible in this range. In some case, as output voltage is getting lower(o<1), impedance of load resistance rises. In such condition, it is sometime impossible to obtain the minimum value of O'. So add the dummy resistance indicated by RD in the figure to the circuit parallel to the load.
NOTICE The circuit application examples in this publication are provided to explain representative applications of SHRP devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHRP takes no responsibility for any problems related to any intellectual property right of a third party resulting from the use of SHRP's devices. Contact SHRP in order to obtain the latest device specification sheets before using any SHRP device. SHRP 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. SHRP 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 --- udio visual equipment --- Consumer electronics (ii) Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when SHRP 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 --- larm equipment --- arious safety devices, etc. (iii)shrp 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). Contact a SHRP representative in advance when intending to use SHRP devices for any "specific" applications other than those recommended by SHRP or when it is unclear which category mentioned above controls the intended use. If the SHRP 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 SHRP devices. This publication is the proprietary product of SHRP 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 SHRP. Express written permission is also required before any use of this publication may be made by a third party. Contact and consult with a SHRP representative if there are any questions about the contents of this publication.