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| Low Power-Loss Voltage Regulators PQ070XZ1HZ PQ070XZ1HZ Low Voltage Operation Low Power-loss Voltage Regulator I G Features I Outline Dimensions 6.6MAX. 5.20.5 3 (Unit : mm) 2.30.5 (0.5) 9.7MAX. 5.50.5 Low voltage operation (Minimum operating voltage: 2.35V) G Low dissipation current Dissipation current at no load: MAX.2mA Output OFF-state dissipation current: MAX.5A G Low power-loss (Dropout voltage: MAX.0.5V) G Built-in overcurrent and overheat protection functions 070XZ1H Epoxy resin 2.5MIN. I G Applications (0 to 0.25) +0.2 0.5-0.1 Power supplies for personal computers and peripheral equipment G Power supplies for various electronic equipment such as DVD player or STB 4-(1.27) ( 1 2 3 4 5 ) : Typical dimensions 1 3 Specific IC 2 5 1 2 3 4 5 4 DC input (VIN) ON/OFF control terminal (VC) DC output (VO) Output voltage adjustment (VADJ) GND I Absolute Maximum Ratings (Ta=25C) Unit V V V A W C C C C Parameter Symbol Rating 1 Input voltage VIN 10 1 VC 10 ON/OFF control terminal voltage 1 5 Output adjustment terminal voltage VADJ 1.5 IO Output current 2 Power dissipation PD 8 3 Junction temperature Tj 150 Operating temperature Topr -40 to +85 Storage temperature Tstg -40 to +150 Soldering temperature Tsol 260 (10s) 1 All are open except GND and applicable terminals 2 PD:With infinite heat sink 3 Overheat protection may operate at Tj=125C to 150C *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) (0.5) (1.7) Low Power-Loss Voltage Regulators PQ070XZ1HZ I Electrical Characteristics Parameter (Unless otherwise specified, condition shall be VIN=5V, VO=3V(R1=1k), IO=0.5A, VC=2.7V, Ta=25C) MIN. TYP. MAX. Unit Symbol Conditions VIN Input voltage Output voltage Load regulation Line regulation Ripple rejection Dropout voltage Reference voltage Temperature coefficient of reference voltage 4 ON-state voltage for control ON-state current for control OFF-state voltage for control OFF-state current for control Quiescent current Output OFF-state dissipation current VO RegL RegI RR VI-O Vref TCVref VC (ON) IC (ON) VC (OFF) IC (OFF) Iq Iqs - - IO=5mA to 1.5A VIN=4 to 8V, IO=5mA Refer to Fig.2 VIN=3.3V, IO=1.25A - Tj=0 to 125C, IO=5mA 4 - IO=0A IO=0A, VC=0.4V IO=0A VC=0.4V 2.35 1.5 - - 45 - 1.225 - 2 - - - - - - - 0.2 0.2 60 - 1.25 1.0 - - - - 1 - 10 7 2 1 - 1 1.275 - - 200 0.8 2 2 5 V V % % dB V V % V A V A mA A 4 In case of opening control terminal 2 , output voltage turns off. Fig.1 Test Circuit VIN 1 3 R2 VC 2 4 0.33F A IC 5 A Iq R1 1k V Vref + 47F RL V VO A IO VO =Vrefx(1+R2/R1) = [R1=1k, Vref. .1.25V] Fig.2 Test Circuit for Ripple Rejection + 1 ei ~ VC 0.33F VIN 2.7V 2 5 R1 1k 4 3 R2 Vref + 47F RL IO eo V ~ f=120Hz(sine wave) ei(rms)=0.5V VO=3V(R1=1k) VIN=5V IO=0.3A RR=20log(ei(rms)/eo(rms)) Low Power-Loss Voltage Regulators Fig.3 Power Dissipation vs. Ambient Temperature 10 8 PD : With infinite heat sink PQ070XZ1HZ Fig.4 Overcurrent Protection Characteristics 3 VIN=10V 2.5 Output voltage VO (V) 2 1.5 VIN=5V 1 0.5 0 0 0.5 1 1.5 2 Output current IO (A) 2.5 VIN=7V VIN=5.5V VIN=4.5V Reference voltage Vref (V) 1.25 1.245 1.24 1.235 VIN=4V VC=2.7V IO=0.5V R1=1k R2=1.4k Output voltage VO (V) Circuit operating current IBIAS (mA) Dropout voltage VI-O (V) ;;;; ;; ;; ;; ; ;;;;;;;; ;; ;; ;; ;; ;;;;;;;; ;;;;;; ; ;; ;; ;; ;; ;;;;;; ; ;;;;;;;; ;; ;; ;; ;; ;;;;;;;; ;; ;; ;;;; ;;;;;;;; ;;;;;;;;; ;;;;;;;; Power dissipation PD (W) 5 -20 0 20 40 60 80 Ambient temperature Ta (C) Note) Oblique line portion:Overheat protection may operate in this area. 0 -40 Fig.5 Reference Voltage vs. Junction Temperature 1.26 1.255 Fig.6 Output Voltage vs. Input Voltage 3.5 3 2.5 RL=2 (IO=1.5A) 2 1.5 1 0.5 0 0 1 VC=2.7V Ta=Room temp. R1=1k R2=1.4k (VO=3V) CIN=0.33F CO=47F 2 3 4 Input voltage VIN (V) 5 RL= (IO=0A) RL=4 (IO=0.75A) 1.23 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) Fig.7 Circuit Operating Current vs. Input Voltage 30 VC=2.7V Ta=Room temp. R1=1k R2=1.4k (VO=3V) 20 CIN=0.33F CO=47F Fig.8 Dropout Voltage vs. Junction Temperature 0.4 VIN=2.35V 0.35 VC=2.7V IO=1.25V 0.3 R1=1k R2=1.4k 0.25 0.2 0.15 0.1 0.05 0 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) RL=2 (IO=1.5A) 10 RL=4 (IO=0.7.5A) RL= (IO=0A) 0 0 1 2 3 4 Input voltage VIN (V) 5 Low Power-Loss Voltage Regulators Fig.9 Quiescent Current vs. Junction Temperature 1.4 1.2 PQ070XZ1HZ Fig.10 Ripple Rejection vs. Input Ripple Frequency 75 70 Quiescent current Iq (mA) 1 0.8 0.6 0.4 0.2 VIN=4V VC=2.7V IO=0A R1=1k R2=1.4k Ripple rejection RR (dB) 65 60 ei(rms)=0.5V 55 VIN=5V VC=2.7V 50 IO=0.3A CO=47F 45 Ta=Room temp. R1=1k 40 R2=1.4k 35 (VO=3V) 0.1 1 10 Input ripple frequency f (kHz) 100 0 -50 -25 0 25 50 75 100 125 Junction temperature Tj (C) Fig.11 Ripple Rejection vs. Output Current 80 75 Ripple rejection RR (dB) 70 65 60 55 50 45 40 0 ei(rms)=0.5V f=120Hz VIN=5V, VC=2.7V CO=47F Ta=Room temp. R1=1k R2=1.4k (VO=3V) 0.25 0.5 0.75 1 1.25 Output current IO (A) 1.5 Fig.12 Power Dissipation vs. Ambient Temperature (Typical Value) Cu area 740mm2 Cu area 180mm2 Cu area 100mm2 Cu area 70mm2 Cu area 36mm 0.5 0 -40 Material : Glass-cloth epoxy resin Size : 50x50x1.6mm Cu thickness : 35m 2 2.0 Power dissipation PD (W) 1.5 PWB PWB Cu 1.0 -20 0 20 40 60 Ambient temperature Ta (C) 80 Low Power-Loss Voltage Regulators Fig.13 Output Voltage Adjustment Characteristics (Typical Value) 10 9 8 R1=1k PQ070XZ1HZ Output voltage VO (V) 7 6 5 4 3 2 1 0 100 103 R2 () 104 I Typical Application DC input VO 1 3 R2 VIN CIN 2 5 4 CO + Load R1 1k ON/OFF signal High:Output ON Low or open:Output OFF I Setting of Output Voltage Output voltage is able to set from 1.5V to 7V when resistors R1 and R2 are attached to , , terminals. As for the external resistors to set output voltage, refer to the figure below and Fig.13. 3 R2 - + 5 Vref 4 R1 VO VO =Vrefx(1+R2/R1) = [RL=1k, Vref. .1.25V] NOTICE G 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). G G G If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade 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. G G |
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