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PQ30RV31

PQ30RV31
PQ30RV31

Low Power-Loss Voltage Regulators PQ30RV31

s Outline Dimensions

(Unit : mm)

PQ30RV31

Parameter

Symbol Rating Unit V IN V ADJ I O P D1P D2T j T opr T stg T sol 35732.020150–20 to +80 –40 to +150260 (For 10s)V V A W W ?C ?C ?C ?C

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

?1?1

?2

?1 All are open except GND and applicable terminals.

?2 Overheat protection function may operate at 125<=T j <=150?C.

s Absolute Maximum Ratings

(T a =25?C)

s Features

q Maximum output current: 3A q Compact resin full-mold package

q Low power-loss(Dropout voltage: MAX.0.5V) q Variable output voltage(setting range: 1.5 to 30V) q Built-in ON/OFF control function.

s Applications

q Power supply for print concentration control of word

processors

q Series power supply for motors and solenoid q Series power supply for VCRs and TVs

Variable Output Low Power-Loss Voltage Regulator

?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 device specification sheets before using any SHARP device.

Internet address for Electronic Components Group https://www.wendangku.net/doc/044564863.html,/ecg/

Parameter

Symbol Conditions

V IN V O R eg L R eg I RR V ref T c V ref V i -O I q

Input voltage output voltage Load regulation Line regulation Ripple rejection Reference voltage

Temperature coefficient of reference voltage Dropout voltage

Quiescent current

Unit MAX.TYP.MIN.4.51.5??451.225????

??

I O =5mA to 3A

V IN =11 to 21V, I O =0.5mA Refer to Fig. 2

?

T j =0 to 125?C,I O =5mA ?3

, I O =3A ?3, I O =2A I O =0

??0.50.5701.25±1.00.30.2?

35302.02.5?1.275?1.00.57

s Electrical Characteristics

?3 Input voltage shall be the value when output voltage is 95% in comparison with the initial value.

(Unless otherwise specified, condition shall be V IN =12V, Vo=10V, Io=1.5A, R 1=390?, T a =25?C)V V %%dB V %/?C V mA

Fig. 2

Fig. 1Test Circuit

Fig. 4Overcurrent Protection Characteristics

(Typical Value)

Fig. 3Power Dissipation vs. Ambient

10

20

30

400

50100150

P o w e r d i s s i p a t i o n P D (W )

Ambient temperature T a (?C)

4.0

5.0

6.0

7.0

8.0

1.0

2.0

3.00

20406080100R e l a t i v e o u t p u t v o l t a g e (%)

Output current I O (A)

Note)Oblique line portion : Overheat protection may operate in this area.

V e i e o I O =0.5A, V IN =12V, V O =10V f=120Hz(sine wave)e i(rms)=0.5V rms

RR=20 log(e i(rms)/e o(rms))

V O =V ref × 1+ –––––

R 2

R 1

[R 1=390?,V ref Nearly=1.25V]

Low Power-Loss Voltage Regulators

PQ30RV31

Fig. 6Output Voltage vs. Input Voltage

Fig. 5Output Voltage Adjustment

Characteristics (Typical value)

Fig. 7Dropout Voltage vs. Junction

Fig. 8Ripple Rejection vs. Input Ripple

Frequency

101

10

2

103

10

4

10

5

R 2 (?)

O u t p u t v o l t a g e V O (V )

0510********

5

10

15

5101520

O u t p u t v o l t a g e V O (V )

Input voltage V IN (V)

–25

02550

75100125

00.10.2

0.30.40.50.6

0.7Junction temperature T j (?C)

D r o p o

u t v o l t a g e V i –O (V )

Fig.10Output Peak Current vs. Dropout

Voltage (Typical value)

Fig. 9Ripple Rejection vs. Output Current

1

2345678910

44.555.567

6.5

O u t p u t p e a k c u r r e n t I O P (A )

Input ripple frequency f (kHz)

R i p p l e r e j e c t i o n R R (d B )

0.1

1101001000

1020304050607080

900

123

405060

708090R i p p l e r e j e c t i o n R R (d B )

–25

100

7550250

44.555.567

6.5O u t p u t p e a k c u r r e n t I O P (A )

Dropout voltage V i –O (V)

V in OFF-state

D 2

q ON/OFF operation is available by mounting externally D 2 and R 3.

q When V ADJ is forcibly raised above V REF (1.25V TYP)by applying the external signal, the output is turned off(pass transistor of regulator is turned off. When the output is OFF, V ADJ must be higher then V REF MAX., and at the same time must be lower than maximum rating 7V.

In OFF-state, the load current flows to R L from V ADJ through R 2. Therefore the value of R 2 must be as high as possible. q V O '=V ADJ ?R L /(R L +R 2)

occurs at the load. OFF-state equivalent circuit R 1 up to 10k ? is allowed. Select as high value of R L and R 2 as possible in this range. In some case, as output voltage is getting lower(V O <1V), impedance of load resistance rises. In such condition, it is sometime impossible to obtain the minimum value of V O '. So add the dummy resistance indicated by R D in the figure to the circuit parallel to the load.

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.

q 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.

q 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 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.

q 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. q 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.

q Contact and consult with a SHARP representative if there are any questions about the contents of this publication.

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