SHARP PQ070XZ1HZ

Low Power-Loss Voltage Regulators
PQ070XZ1HZ
PQ070XZ1HZ
Low Voltage Operation Low Power-loss Voltage Regulator
■
■
Features
Low voltage operation (Minimum operating voltage: 2.35V)
● Low dissipation current
Dissipation current at no load: MAX.2mA
Output OFF-state dissipation current: MAX.5µA
● Low power-loss (Dropout voltage: MAX.0.5V)
● Built-in overcurrent and overheat protection functions
(Unit : mm)
Outline Dimensions
●
Power supplies for personal computers and peripheral
equipment
● Power supplies for various electronic equipment such as
DVD player or STB
●
(1.7)
5.5±0.5
9.7MAX.
Epoxy resin
070XZ1H
(0 to 0.25)
+0.2
0.5–0.1
(0.5)
4–(1.27)
(
1
2
3
4
(0.9)
Applications
(0.5)
3
2.5MIN.
■
2.3±0.5
6.6MAX.
5.2±0.5
) : Typical dimensions
5
1
3
Specific IC
2
4
5
1
2
3
4
5
■
Absolute Maximum Ratings
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)
DC input (VIN)
ON/OFF control terminal (VC)
DC output (VO)
Output voltage adjustment (VADJ)
GND
(Ta=25°C)
Unit
V
V
V
A
W
˚C
˚C
˚C
˚C
❇1 All are open except GND and applicable terminals
❇2 PD:With infinite heat sink
❇3 Overheat protection may operate at Tj=125˚C to 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
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PQ070XZ1HZ
Electrical Characteristics
Parameter
(Unless otherwise specified, condition shall be VIN=5V, VO=3V(R1=1kΩ), IO=0.5A, VC=2.7V, Ta=25˚C)
MIN. TYP. MAX. Unit
Symbol
Conditions
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
−
−
IO=5mA to 1.5A
VIN=4 to 8V, IO=5mA
Refer to Fig.2
VIN=3.3V, IO=1.25A
−
Tj=0 to 125˚C, IO=5mA
VIN
VO
RegL
RegI
RR
VI-O
Vref
TCVref
VC (ON)
IC (ON)
VC (OFF)
IC (OFF)
Iq
Iqs
❇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
µA
V
µA
mA
µA
❇4 In case of opening control terminal 2 , output voltage turns off.
Fig.1 Test Circuit
VIN
VO
3
1
R2
VC
2
4
A
0.33µF
A
Vref
5
IC
IO
+
V
47µF
R1
1kΩ
Iq
A
V
RL
VO =Vref×(1+R2/R1)
[R1=1kΩ, Vref.=.1.25V]
Fig.2 Test Circuit for Ripple Rejection
+
3
1
ei ~
IO
R2
VC
4
2
0.33µF
Vref
5
VIN
2.7V
eo
+
V
~
47µF
R1
1kΩ
f=120Hz(sine wave)
ei(rms)=0.5V
VO=3V(R1=1kΩ)
RL
VIN=5V
IO=0.3A
RR=20log(ei(rms)/eo(rms))
Low Power-Loss Voltage Regulators
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Fig.3 Power Dissipation vs. Ambient
Temperature
10
Fig.4 Overcurrent Protection
Characteristics
3
VIN=10V
PD : With infinite heat sink
5
2.5
Output voltage VO (V)
8
Power dissipation PD (W)
PQ070XZ1HZ
2
VIN=4.5V
1.5
VIN=5V
1
0.5
0
0
–40
0
–20
0
20
40
60
80
Ambient temperature Ta (°C)
Note) Oblique line portion:Overheat protection may operate in this area.
0.5
1
1.5
2
Output current IO (A)
2.5
Fig.6 Output Voltage vs. Input Voltage
1.26
3.5
1.255
3
RL=∞Ω (IO=0A)
RL=4Ω (IO=0.75A)
Output voltage VO (V)
Reference voltage Vref (V)
Fig.5 Reference Voltage vs. Junction
Temperature
VIN=7V
VIN=5.5V
1.25
1.245
VIN=4V
VC=2.7V
IO=0.5V
R1=1kΩ
R2=1.4kΩ
1.24
1.235
Fig.7 Circuit Operating Current vs. Input
Voltage
RL=∞Ω (IO=0A)
0
1
2
3
4
Input voltage VIN (V)
1
0
5
1
2
3
4
Input voltage VIN (V)
5
Fig.8 Dropout Voltage vs. Junction
Temperature
Dropout voltage VI-O (V)
Circuit operating current IBIAS (mA)
RL=2Ω (IO=1.5A)
RL=4Ω (IO=0.7.5A)
0
VC=2.7V
Ta=Room temp.
R1=1kΩ
R2=1.4kΩ
(VO=3V)
CIN=0.33µF
CO=47µF
1.5
0
30
10
RL=2Ω (IO=1.5A)
2
0.5
1.23
–50 –25 0
25 50 75 100 125
Junction temperature Tj (˚C)
VC=2.7V
Ta=Room temp.
R1=1kΩ
R2=1.4kΩ
(VO=3V)
20 CIN=0.33µF
CO=47µF
2.5
0.4
VIN=2.35V
0.35 VC=2.7V
IO=1.25V
0.3 R1=1kΩ
R2=1.4kΩ
0.25
0.2
0.15
0.1
0.05
0
–50 –25 0
25 50 75 100 125
Junction temperature Tj (˚C)
Low Power-Loss Voltage Regulators
Fig.10 Ripple Rejection vs. Input Ripple
Frequency
1.4
75
1.2
70
1
0.8
0.6
VIN=4V
VC=2.7V
IO=0A
R1=1kΩ
R2=1.4kΩ
0.4
0.2
0
–50 –25 0
25 50 75 100 125
Junction temperature Tj (˚C)
Ripple rejection RR (dB)
Quiescent current Iq (mA)
Fig.9 Quiescent Current vs. Junction
Temperature
PQ070XZ1HZ
65
60
ei(rms)=0.5V
55 VIN=5V
VC=2.7V
50 IO=0.3A
CO=47µF
45 Ta=Room temp.
R1=1kΩ
40 R2=1.4kΩ
35 (VO=3V)
0.1
1
10
Input ripple frequency f (kHz)
Fig.11 Ripple Rejection vs. Output Current
80
Ripple rejection RR (dB)
75
70
65
60
ei(rms)=0.5V
f=120Hz
VIN=5V, VC=2.7V
CO=47µF
Ta=Room temp.
R1=1kΩ
R2=1.4kΩ
(VO=3V)
55
50
45
40
0
0.25 0.5 0.75
1
1.25
Output current IO (A)
1.5
Fig.12 Power Dissipation vs. Ambient
Temperature (Typical Value)
Power dissipation PD (W)
2.0
1.5
1.0
Cu area 740mm2
Cu area 180mm2
Cu area 100mm2
Cu area 70mm2
PWB
PWB
Cu
2
Cu area 36mm
0.5
0
–40
Material
: Glass-cloth epoxy resin
Size
: 50×50×1.6mm
Cu thickness : 35µm
–20
0
20
40
60
Ambient temperature Ta (°C)
80
100
Low Power-Loss Voltage Regulators
PQ070XZ1HZ
Fig.13 Output Voltage Adjustment Characteristics (Typical Value)
10
R1=1kΩ
9
Output voltage VO (V)
8
7
6
5
4
3
2
1
0
100
■
103
R2 (Ω)
104
Typical Application
DC input
1
VO
3
R2
VIN
2
CIN
CO
4
+
Load
5
R1
1kΩ
High:Output ON



Low or open:Output OFF
ON/OFF signal
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Setting of Output Voltage
Output voltage is able to set from 1.5V to 7V when resistors R1 and R2 are attached to ➂, ➃, ➄ terminals. As for the external
resistors to set output voltage, refer to the figure below and Fig.13.
VO
3
R2
−
4
R1
+
5
Vref
VO =Vref×(1+R2/R1)
[RL=1kΩ, Vref.=.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).
●
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.