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NCV4294CSN33T1G

P1-P3P4-P6P7-P9P10-P11
NCV4294C
www.onsemi.com
10
APPLICATIONS INFORMATION
The NCV4294C low dropout regulator is self−protected
with internal thermal shutdown and internal current limit.
Typical characteristics are shown in Figure 3 to Figure 18.
Input Decoupling (C
in
)
A ceramic or tantalum 0.1 mF capacitor is recommended
and should be connected close to the NCV4294C package.
Higher capacitance and lower ESR will improve the
overall line and load transient response.
Output Decoupling (C
out
)
The NCV4294C is a stable component and does not
require a minimum Equivalent Series Resistance (ESR) for
the output capacitor. Stability region of ESR vs. Output
Current is shown in Figures 3 and 11. The minimum output
decoupling value is 2.2 m F and can be augmented to fulfill
stringent load transient requirements. The regulator works
with ceramic chip capacitors as well as tantalum devices.
Larger values improve noise rejection and load transient
response.
Thermal Considerations
As power in the NCV4294C increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and the ambient
temperature affect the rate of junction temperature rise for
the part. When the NCV4294C has good thermal
conductivity through the PCB, the junction temperature
will be relatively low with high power applications. The
maximum dissipation the NCV4294C can handle is given
by:
P
D(MAX)
+
ƪ
T
J(MAX)
* T
A
ƫ
R
qJA
(eq. 1)
Since T
J
is not recommended to exceed 150°C, then the
NCV4294C soldered on 645 mm
2
, 1 oz copper area, FR4
can dissipate up to 0.92 W when the ambient temperature
(T
A
) is 25°C. See Figure 18 for R
thJA
versus PCB area. The
power dissipated by the NCV4294C can be calculated from
the following equations:
P
D
[ V
in
ǒ
I
q
@I
out
Ǔ
) I
out
ǒ
V
in
* V
out
Ǔ
(eq. 2)
or
V
in(MAX)
[
P
D(MAX)
)
ǒ
V
out
I
out
Ǔ
I
out
) I
q
(eq. 3)
Hints
V
in
and GND printed circuit board traces should be as wide
as possible. When the impedance of these traces is high,
there is a chance to pick up noise or cause the regulator to
malfunction. Place external components, especially the
output capacitor, as close as possible to the NCV4294C and
make traces as short as possible.
ORDERING INFORMATION
Device Marking Package Shipping
†
NCV4294CSN50T1G 45V
TSOP−5
(Pb−Free)
3000 / Tape & Reel
NCV4294CSN33T1G 43V
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
NCV4294C
www.onsemi.com
11
PACKAGE DIMENSIONS
TSOP−5
CASE 483
ISSUE M
0.7
0.028
1.0
0.039
ǒ
mm
inches
Ǔ
SCALE 10:1
0.95
0.037
2.4
0.094
1.9
0.074
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH
THICKNESS. MINIMUM LEAD THICKNESS IS THE
MINIMUM THICKNESS OF BASE MATERIAL.
4. DIMENSIONS A AND B DO NOT INCLUDE MOLD
FLASH, PROTRUSIONS, OR GATE BURRS. MOLD
FLASH, PROTRUSIONS, OR GATE BURRS SHALL NOT
EXCEED 0.15 PER SIDE. DIMENSION A.
5. OPTIONAL CONSTRUCTION: AN ADDITIONAL
TRIMMED LEAD IS ALLOWED IN THIS LOCATION.
TRIMMED LEAD NOT TO EXTEND MORE THAN 0.2
FROM BODY.
DIM MIN MAX
MILLIMETERS
A
B
C 0.90 1.10
D 0.25 0.50
G 0.95 BSC
H 0.01 0.10
J 0.10 0.26
K 0.20 0.60
M 0 10
S 2.50 3.00
123
54
S
A
G
B
D
H
C
J
__
0.20
5X
C AB
T0.10
2X
2X
T0.20
NOTE 5
C
SEATING
PLANE
0.05
K
M
DETAIL Z
DETAIL Z
TOP VIEW
SIDE VIEW
A
B
END VIEW
1.35 1.65
2.85 3.15
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regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or
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PUBLICATION ORDERING INFORMATION
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81−3−5817−1050
NCV4294C/D
LITERATURE FULFILLMENT:
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Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada
Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your loc
a
Sales Representative
◊
P1-P3P4-P6P7-P9P10-P11

NCV4294CSN33T1G

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Buy NCV4294CSN33T1G
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators 3.3V/30MA LDO
Lifecycle:
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