Low Voltage Operation Low Power-loss Voltage Regulator
s
q
Features
s
Outline Dimensions
10.6
MAX.
(0.55)
3.28
±0.5
6
(Unit : mm)
3.5
±0.5
(0.6)
13.7
MAX.
8.4
±0.5
Output OFF-state dissipation current: MAX. 5µA)
q
Low power-loss
q
Built-in overcurrent and overheat protection functions
q
Epoxy resin
(0.6)
(0.45)
1.05
+0.2
–0.1
4–(1.7)
(2.4)
0 to 0.25
(0.6)
(1.3)
Low voltage operation (Minimum operating voltage: 2.35V)
2.5V input
→
available 1.5 to 1.8V
q
Large output current type (I
O
: 1A)
q
Low dissipation current
(Dissipation current at no load: MAX. 2mA
(Heat sink is
common to
3
.)
ø2
070XH01
(0.6)
(0.45)
1.05
+0.2
–0.1
+0.2
3–0.9
–0.1
TO-263 package
PQ070XH01ZZ:
Sleeve-packaged product
PQ070XH01ZP:
Tape-packaged product
s
q
1 2 3 4 5
Applications
1
3
Peripheral equipment of personal computers
q
Power supplies for various electronic equipment such as
DVD player or STB
1
2
3
4
5
6
Specific IC
2
5
4
DC input (V
IN
)
ON/OFF control terminal (V
C
)
DC output (V
O
)
Output voltage adjustment (V
ADJ
)
GND
DC output (V
O
)
(
) : Typical dimensions
s
Absolute Maximum Ratings
(Ta=25°C)
Unit
V
V
V
A
W
˚C
˚C
˚C
˚C
❇1
Input
Parameter
Symbol
Rating
voltage
V
IN
10
❇1
V
C
10
ON/OFF control terminal voltage
❇1
V
ADJ
5
Output adjustment terminal voltage
I
O
1
Output current
❇2
Power dissipation
P
D
35
❇3
Junction temperature
T
j
150
Operating temperature
T
opr
−40
to
+85
Storage temperature
T
stg
−40
to
+150
T
sol
Soldering temperature
260 (10s)
❇1
All are open except GND and applicable terminals.
❇2
P
D
:With infinite heat sink
❇3
Overheat protection may operate at Tj=125˚C to 150˚C.
•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 Internet address for Electronic Components Group http://sharp-world.com/ecg/
Notice
Low Power-Loss Voltage Regulators
PQ070XH01Z
s
Electrical Characteristics
Parameter
(Unless otherwise specified, condition shall be V
IN
=5V,
V
O
=3V
(R1=1kΩ), I
O
=0.5A,
V
C
=2.7V
,
Ta=25˚C)
MIN. TYP. MAX. Unit
Symbol
Conditions
V
IN
Input voltage
Output voltage
Reference voltage
Load regulation
Line regulation
Temperature coefficient of reference voltage
Ripple rejection
Dropout 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
V
O
V
ref
R
eg
L
R
eg
I
T
C
V
ref
RR
V
I-O
V
C (ON)
I
C (ON)
V
C (OFF)
I
C (OFF)
I
q
I
qs
−
−
−
I
O
=5mA
to 1A
V
IN
=4
to 8V, I
O
=5mA
T
j
=0
to 125˚C, I
O
=5mA
Refer to Fig.2
V
IN
=2.85V,
I
O
=0.5A
−
−
I
O
=0A
I
O
=0A, V
C
=0.4V
I
O
=0A
I
O
=0A, V
C
=0.4V
2.35
1.5
1.225
−
−
−
45
−
2.0
−
−
−
−
−
−
−
1.25
0.2
0.2
±1.0
60
−
−
−
−
−
1
−
10
7
1.275
2
1
−
−
0.5
−
200
0.8
2
2
5
V
V
V
%
%
%
dB
V
V
µA
V
µA
mA
µA
❇4
In case of opening control terminal
2
, output voltage turns off.
Fig.1 Test Circuit
V
IN
1
3
R
2
V
C
2
4
0.33µF
A
I
C
5
A
I
q
R
1
1kΩ
V
V
ref
+
47µF
R
L
V
V
O
A
I
O
V
O
=V
ref
×(1+R
2
/R
1
)
=
[R
1
=1kΩ,
V
ref
. .
1.25V]
Fig.2 Test Circuit for Ripple Rejection
+
1
ei
~
V
C
0.33µF
V
IN
2.7V
2
5
R
1
1kΩ
4
3
R
2
V
ref
+
47µF
R
L
I
O
eo
V
~
f=120Hz(sine wave)
ei(rms)=0.5V
V
O
=3V(R
1
=1kΩ)
V
IN
=5V
I
O
=0.3A
RR=20log(ei(rms)/eo(rms))
Low Power-Loss Voltage Regulators
Fig.3 Power Dissipation vs. Ambient
Temperature
40
35
P
D
: With infinite heat sink
2.5
PQ070XH01Z
Fig.4 Overcurrent Protection
Characteristics
3
Power dissipation P
D
(W)
Output voltage V
O
(V)
30
25
20
15
10
5
0
−40
−20
0
20
40
60
80
100
2
V
IN
=4.5V
1.5
V
IN
=5V
V
IN
=5.5V
V
IN
=7V
V
IN
=10V
V
O
=3V
0
0
0.5
1
Output current I
O
(A)
1.5
2
1
0.5
Ambient temperature T
a
(°C)
Note) Oblique line portion:Overheat protection may operate in this area.
Fig.5 Reference Voltage vs. Ambient
Temperature
1.26
V
IN
=4V
I
O
=0.5A
V
C
=2.7V
R
1
=1kΩ
R
2
=1.4kΩ
Fig.6 Output Voltage vs. Input Voltage
3.5
3
V
C
=2.7V
T
a
=Room
temp.
R
1
=1kΩ
R
2
=1.4kΩ
(V
O
=3V)
C
IN
=0.33µF
C
O
=47µF
R
L
=3Ω
(I
O
=1A)
1.5
1
0.5
R
L
=6Ω
(I
O
=0.5A)
R
L
=∞Ω
(I
O
=0.3A)
1.255
Reference voltage V
ref
(V)
1.25
Output voltage V
O
(V)
2.5
2
1.245
1.24
1.235
1.23
−50
−25
0
0
25
50
75
100
125
0
1
2
3
4
5
Ambient temperature T
a
(°C)
Input voltage V
IN
(V)
Fig.7 Circuit Operating Current vs. Input
Voltage
30
Circuit operating current I
BIAS
(mA)
Fig.8 Dropout Voltage vs. Junction
Temperature
0.25
Dropout voltage V
I-O
(V)
V
C
=2.7V
T
a
=Room
temp.
R
1
=1kΩ
R
2
=1.4kΩ
(V
O
=3V)
C
IN
=0.33µF
20
C
O
=47µF
R
L
=3Ω
(I
O
=1A)
0.2
R
L
=6Ω
(I
O
=0.5A)
R
L
=∞Ω
(I
O
=0A)
10
0.15
0.1
V
IN
:Input voltage shall be the value when output
voltage is 95% in camparison with the initial
value
0.05
I
O
=0.5A
R
2
=1.4kΩ
V
C
=2.7V
(V
O
=3V)
R
1
=1kΩ
0
−50 −25
0
25
50
75
100 125
Junction temperature T
j
(°C)
0
0
1
2
3
4
5
Input voltage V
IN
(V)
Low Power-Loss Voltage Regulators
Fig.9 ON-OFF Threshold Voltage vs.
Ambient Temperature
2.5
PQ070XH01Z
Fig.10 Quiescent Current vs. Ambient
Temperature
1.4
1.2
ON-OFF threshold voltage V
TH
(ON/OFF) (V)
V
IN
=2.5V
I
O
=0A
2
Quiescent current I
q
(mA)
1
0.8
0.6
0.4
0.2
V
IN
=4V
I
O
=0A
V
C
=2.7V
R
1
=1kΩ
R
2
=1.4kΩ
(V
O
=3V)
−25
0
25
50
75
100
125
1.5
1
0.5
0
−50
−25
0
25
50
75
100
125
0
−50
Ambient temperature T
a
(°C)
Ambient temperature T
a
(°C)
Fig.11 Ripple Rejection vs. Input Ripple
Frequency
75
70
Ripple rejection RR (dB)
Fig.12 Ripple Rejection vs. Output Current
75
70
Ripple rejection RR (dB)
65
60
55
50
45
40
ei(rms)
=0.5V
V
IN
=5V
V
C
=2.7V
I
O
=0.3A
C
O
=47µF
T
a
=Room
temp.
R
1
=1kΩ
R
2
=1.4kΩ
(V
O
=3V)
1
10
100
65
60
55
50
45
40
0
0.25
0.5
35
0.1
ei (rms)
=0.5V
f=120Hz
V
IN
=5V
V
C
=2.7V
C
O
=47µF
T
a
=Room
temp.
R
1
=1kΩ
R
2
=1.4kΩ
(V
O
=3V)
0.75
1
Input ripple frequency f (kHz)
Output current I
O
(A)
Fig.13 Power Dissipation vs. Ambient
Temperature
6
5
Cu area 3 600mm
2
Cu area 900mm
2
Cu area 400mm
2
Cu area 115mm
2
Power dissipation P
D
(W)
4
3
PWB
PWB
Cu
2
1
0
−40
−20
Material
: Glass-cloth epoxy resin
Size
: 60×60×1.6mm
Cu thickness : 65µm
0
20
40
60
80
Ambient temperature T
a
(°C)
Low Power-Loss Voltage Regulators
Fig.14 Output Voltage Adjustment
Characteristics (Typical Value)
10
9
8
R
1
=1kΩ
PQ070XH01Z
Output voltage V
O
(V)
7
6
5
4
3
2
1
0
100
1 000
R
2
(Ω)
10 000
Fig.15 Typical Application
V
O
1
3
R
2
V
IN
C
IN
2
5
4
C
O
+
Load
R
1
1kΩ
ON/OFF signal
High:Output ON
Low or open Output OFF
s
Setting of Output Voltage
Output voltage is able to set from 1.5V to 7V when resistors R
1
and R
2
are attached to
➂, ➃, ➄
terminals. As for the external
resistors to set output voltage, refer to the figure below and Fig.14.
[i=s]This post was last edited by yl20084784 on 2019-7-13 23:46[/i]As shown in the figure, please recommend chip X.
The basic function of this system is that 430 gives data to chip X through the seria...
I downloaded and simulated 800 times, but the watch window is 0. I can't enter when I interrupt
I have confirmed that the iar setting is correct. The program is also the most popular one on the Intern...
1. Background A recent project used TI Cortex-A8 chip AM3517 as the main control. In the early stage, the development environment was built using the ICETEK-AM3517-KB core board from Beijing Ruitai Co...
There is a good article written on the Internet, which I would like to share with you.
Keywords:Analog circuitI often read various electronic industry print media, and every time I see Analog Device's...
MCU
京公网安备 11010802033920号
EEWORLD
