2.5V Output, Surface Mount Type Low Power-Loss Voltage Regulators
s
Features
¡Low
power-loss (Dropout voltage : MAX 0.5V)
¡Surface
mount type package (Equivalent to EIAJ SC-63)
¡Output
voltage : 2.5V
¡Minimum
input voltage : 3.0V
¡Output
current : (0.5A :
PQ2TZ55)
(1.0A :
PQ2TZ15)
¡Output
voltage precision : ±2.5%
¡Built-in
ON/OFF control function
¡Low
dissipation current at OFF-state (Iqs : MAX.5µA)
¡Tape
packaged type is also available.
(
φ330mm
reel : 3 000pcs.,
PQ2TZ55U/PQ2TZ15U)
s
Outline Dimensions
(Unit : mm)
6.6MAX
5.2±0.5
3
2.3±0.5
(0.5)
9.7MAX
2TZ55
5.5±0.5
(1.7)
0.5
+0.2
-0.1
(0.5)
12345
3
Specific IC
2
5
1
DC input (V
IN
)
2
ON/OFF control
terminal (V
C
)
3
DC output (V
O
)
4
NC
5
GND
(0to0.25)
2.5MIN
s
Applications
¡Personal
computers
¡Personal
information tools(PDA)
¡Various
OA equipment
Internal connection diagram
1
Heat sink is common to
3
(V
O
).
s
Absolute Maximum Ratings
*1
*1
(T
a
=25˚C)
Symbol
V
IN
V
C
I
O
P
D
T
j
T
opr
T
stg
T
sol
Rating
10
10
0.5
1
8
150
-20 to + 80
-40 to +150
260(For 10s)
Unit
V
V
A
W
˚C
˚C
˚C
˚C
*2
*3
Parameter
Input voltage
ON/OFF control terminal voltage
PQ2TZ55
Output current
PQ2TZ15
Power dissipation
Junction temperature
Operating temperature
Storage temperature
Soldering temperature
All are open except GND and applicable terminals.
P
D
:With infinite heat sink.
*3
Overheat protection may operate at 125=<T
j
=<150˚C
*2
*1
· 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 version of the device specification sheets before using any SHARP's device. ”
(0.9)
4-(1.27)
Low Power-Loss Voltage Regulators
PQ2TZ55/PQ2TZ15
s
Electrical Characteristics
(Unless otherwise specified, conditions shall be I
O
=0.3A [PQ2TZ55]/I
O
=0.5A [PQ2TZ15]V
IN
=3.3V, V
C
=2.7V, T
a
=25˚C)
Parameter
Input voltage
Output voltage
Load regulation
PQ2TZ55
PQ2TZ15
Symbol
V
IN
V
O
R
eg
L
R
eg
I
T
C
V
O
RR
V
i-o
V
C (ON)
I
C (ON)
V
C (OFF)
I
C (OFF)
I
q
I
qs
Conditions
-
-
I
O
=5mA to 0.5A
I
O
=5mA to 1.0A
V
IN
=3.0 to 10V, I
O
=5mA
I
O
=5mA, T
j
=0 to 125˚C
-
V
IN
=3V, I
O
=0.5A
V
IN
=3V, I
O
=1.0A
*4
MIN.
3.0
2.438
-
-
-
45
-
2.0
-
-
-
-
-
TYP.
-
2.5
0.2
0.1
±0.01
60
-
-
-
-
-
-
-
MAX.
10
2.562
2.0
2.5
-
-
0.5
-
200
0.8
2
10
5
Unit
V
V
%
%
%/˚C
dB
V
V
µA
V
µA
mA
µA
Line regulation
Temperature coefficient of output voltage
Ripple rejection
PQ2TZ55
Dropout voltage
PQ2TZ15
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
*4
-
-
V
C
=0.4V
I
O
=0A
I
O
=0A, V
C
=0.4V
In case of opening control terminal
2,
output voltage turns off.
Fig.1
V
IN
Test Circuit
47µF
V
O
Fig.2
Test Circuit for Ripple Rejection
47µF
+
I
O
+
1
q
3
q
2
q
5
q
V
C
1
q
A
+
I
O
~
e
i
5
q
V
IN
0.33µF
3
q
V
C
2
q
A
I
q
I
C
V
R
L
R
L
V
e
o
~
0.33µF
A
2.7V
Fig.3
10
Power Dissipation vs. Ambient
Temperature
P
D
:With infinite heat sink
P
D
5
0
-20
0
20
40
60
Ambient temperature T
a
(˚C)
,,,
,,,
,,,
f=120Hz (sine wave)
e
i
=0.5V
rms
V
IN
=3.3V
I
O
=0.5A (PQ2TZ15)
I
O
=0.3A (PQ2TZ55)
RR=20 log (e
i
/e
o
)
Power dissipation P
D
(W)
80
Note) Oblique line portion:Overheat protection may
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