Low Power-Loss Voltage Regulators
PQ7VZ5
PQ7VZ5
Variable Output, Compact Surface Mount Type Low Power-Loss Voltage Regulators
■
■
Features
Low power-loss (Dropout voltage: MAX. 0.5V)
● Variable output type (1.5V to 7V)
● Surface mount type package (equivalent to EIAJ SC-63)
● Output current: MAX.0.5A
● Low dissipation current at OFF-state (Iqs: MAX. 5µA)
● Built-in ON/OFF control function
● Reference voltage precision: ±2.0%
● Tape packaged type is also available. (Reel: 3 000pcs.)
(Unit : mm)
Outline Dimensions
●
2.3±0.5
6.6MAX
(0.5)
➂
7VZ5
(1.7)
5.5±0.5
9.7MAX
5.2±0.5
(0 to 0.25)
Applications
(0.9)
■
2.5MIN
0.5 +0.2
–0.1
4–(1.27)
(0.5)
Personal computers
● Word processors
● Printers
● Camcoders
● Personal Information Tools(PDA)
●
➀➁➂➃ ➄
Internal connection diagram
➀
➁
➂
Specific IC
➄
■
Absolute Maximum Ratings
Parameter
❇1
❇1
❇1
❇2
❇3
❇1
❇2
❇3
Input voltage
ON/OFF control terminal voltage
Output adjustment terminal voltage
Output current
Power dissipation
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
➃
➀
➁
➂
➃
➄
VIN
ON/OFF control
VOUT
OADJ
GND
Heat sink is common to ➂(VOUT)
(Ta=25˚C)
Symbol
VIN
VC
VADJ
IO
PD
Tj
Topr
Tstg
Tsol
Rating
10
10
7
0.5
8
150
–20 to +80
–40 to +150
260(For 10s)
Unit
V
V
V
A
W
˚C
˚C
˚C
˚C
All are open except GND and applicable terminals.
PD : With infinite heat sink.
Overheat protection may operate at 125<=Tj<=150˚C
•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
Electrical Characteristics
Parameter
Input voltage
Output voltage variable range
Load regulation
Line regulation
Ripple rejection
Dropout voltage
Reference voltage
Temperature coefficient of reference voltage
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 consumption current
Symbol
VIN
VO
RegL
RegI
RR
Vi-o
Vref
TCVref
VC(ON)
IC(ON)
VC(OFF)
IC(OFF)
Iq
Iqs
Condition
−
−
IO=5mA to 0.5A
VIN=4 to 10V, IO=5mA
Refer to Fig. 2
VIN=3.4, IO=0.3A
−
IO=5mA, Tj=0 to 125˚C
NIN.
3.4
1.5
−
−
45
−
1.225
−
2.0
−
−
−
−
−
❇4
−
IC=0A
VC=0.4V, IC=0A
IC=0A
VC=0.4V
TYP.
−
−
0.2
0.2
60
−
1.25
±1.0
−
−
−
−
4
−
MAX.
10.0
7.0
2.0
2.5
−
0.5
1.275
−
−
200
0.8
2
7
5
Unit
V
V
%
%
dB
V
V
%
V
µA
V
µA
mA
µA
In case of opening control terminal ➁ , output voltage turns off.
Fig. 1 Test Circuit
VIN
0.33µF
1
Fig. 2 Test Circuit for Ripple Rejection
47µF
3
R2
VC 2
A
VO=Vref ×
5
A
4
Iq 1kΩ
VO
A
IO
+
R1 V
0.33µF
RL
2
VIN
10
50
80 100
150
0
Ambient temperature Ta (˚C)
Note) Oblique line portion : Overheat protection may operate in this area.
47µF
4
IO
+
R1
1kΩ
V eo
RL
Fig. 4 Overcurrent Protection
Characteristics (Typical Value)
4
Ta =25˚C
VO=3V(R1=1kΩ,R2=1.4kΩ)
PD
0
–20
5
+
f=120Hz(sine wave)
ei(rms)=0.5V
IO=0.3A
RR=20 log(ei(rms)/eo(rms))
VIN=5V
VO=3V(R1=1kΩ)
PD:With infinite heat sink
5
47µF
3
VC
R2
1+ –––––
R1
Fig. 3 Power Dissipation vs. Ambient
Temperature
1
R2
ei
V
[R1=1kΩ,Vref Nearly=1.25V]
Power dissipation PD (W)
❇4
(Unless otherwise specified, conditions shall be VIN=5V, VO=3V(R1=1kΩ), Io=0.3A, VC=2.7V, Ta=25˚C)
Output voltage VO (V)
■
PQ7VZ5
3
Vi–O =0.5V
2
Vi–O =1V
Vi–O =5V
Vi–O =2V
1
0
0
0.5
1.0
1.5
Output current IO (A)
2.0
Low Power-Loss Voltage Regulators
8
Fig. 6 Reference Voltage Deviation vs.
Junction Temperature (Typical Value)
Reference voltage deviation ∆Vref (mV)
Fig. 5 Output Voltage Adjustment
Characteristics
R1=1kΩ
Output voltage VO (V)
7
6
5
4
3
2
1
0
0.1
1
10
R2 (kΩ)
100
1000
Fig. 7 Output Voltage vs. Input Voltage
RL=1.2Ω
RL=∞
RL=0.6Ω
2
1
0
0
1
2
3
4
5
Input voltage VIN (V)
6
0.1
0
–25
0
–2
–4
–6
–8
–10
–25
0
25
50
75
100
Junction temperature Tj (˚C)
125
IO=0.5A
IO=0.4A
IO=0.3A
IO=0.2A
IO=0.1A
0
25
50
75
100
Junction temperature Tj (˚C)
Ta =25˚C
VO=3V
(R1=1kΩ,
R2=1.4kΩ)
20
RL=6Ω
RL=10Ω
10
RL=∞
0
0
ON-state voltage for control VC(ON) (V)
Dropout voltage Vi–O (V)
0.4
0.2
2
1
2
3
4
5
Input voltage VIN (V)
6
7
Fig.10 ON-state Voltage for Control vs.
Junction Temperature (Typical Value)
VIN =0.95VO
VO=3V(R1=1kΩ,R2=1.4kΩ)
0.3
4
Fig. 8 Circuit Operating Current vs. Input
Voltage
7
Fig. 9 Dropout Voltage vs. Junction
Temperature (Typical Value)
0.5
VIN=5V
8 VO=3V(R1=1kΩ,R2=1.4kΩ)
6 IO=0.3A
30
Ta =25˚C
VO=3V(R1=1kΩ,R2=1.4kΩ)
3
10
Circuit operating current IBIAS (mA)
Output voltage VO (V)
4
PQ7VZ5
125
3.0
2.5
VIN =5V
VO=3V(R1=1kΩ,R2=1.4kΩ)
IO=0.3A
2.0
1.5
1.0
0.5
0
–25
0
25
50
75
100
Junction temperature Tj (˚C)
125
Low Power-Loss Voltage Regulators
Fig.11 Quiescent Current vs. Junction
Temperature (Typical Value)
VIN =5V
VO=3V(R1=1kΩ,R2=1.4kΩ)
4 IO =0.3A
70
3
2
1
0
–25
0
25
50
75
100
Junction temperature Tj (˚C)
Fig.12 Ripple Rejection vs. Input Ripple
Frequency
Ripple rejection RR (dB)
Quiescent current Iq (mA)
5
PQ7VZ5
125
60
50
40
30
20 VIN=5V
VO=3V(R1=1kΩ,R2=1.4kΩ)
10 Io=0.3A
ei(rms)=0.5V
0
0.1
1
10
Input ripple frequency f (kHz)
Fig.13 Output Peak Current vs. Junction
Temperature (Typical Value)
Output peak current IOP (A)
2.0
VIN=5V
VO=3V(R1=1kΩ,R2=1.4kΩ)
VIN–VO =5V
1.5
2V
1V
1.0
0.5V
0.5
IOP:Output current when
output voltage is 95%
in comparison with
the initial value
0
–25
0
25
50
75
100
Junction temperature Tj (˚C)
125
Fig.14 Power Dissipation vs. Ambient
Temperature (Typical Value)
Power dissipation PD (W)
3
Cu area 740mm2
2
PWB
Cu area 180mm2
Cu area 100mm2
PWB
Cu
1
Material
: Glass-cloth epoxy resin
Size
: 50×50×1.6mm
Cu thickness : 35µm
2
Cu area 70mm
Cu area 36mm2
0
–20
60
80
0
20
40
Ambient temperature Ta (˚C)
100
100
Low Power-Loss Voltage Regulators
■
PQ7VZ5
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
PQ7VZ5
PQ7VZ5U
■
Setting of Output Voltage
Output voltage is able to be set from 1.5V to 7V when resistors R1, R2 are attached to ➂,➃,➄ terminals. As for the external
resistors to set output voltage, refer to the figure below or Fig.5.
VO
3
R2
–
4
R1
+
5
Vref
VO=Vref×(1+R2/R1)
(R1=1kΩ,Vref Nearly=1.25V)
NOTICE
●
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).
●
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.