This series of fixed output NOCAP linear regulators are designed
for handheld communication equipment and portable battery powered
applications which require low quiescent. This series features an
ultra−low quiescent current of 2.8 A. Each device contains a voltage
reference unit, an error amplifier, a PMOS power transistor, resistors
for setting output voltage, current limit, and temperature limit
protection circuits. The NCP552 series provides an enable pin for
ON/OFF control.
These voltage regulators have been designed to be used with low
cost ceramic capacitors. The devices have the ability to operate
without an output capacitor. The devices are housed in the
micro−miniature SC82−AB surface mount package. Standard voltage
versions are 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3, and 5.0 V. Other voltages
are available in 100 mV steps.
Features
• Pb−Free Packages are Available*
• Low Quiescent Current of 2.8 A Typical
• Low Output Voltage Option
• Output Voltage Accuracy of 2.0%
• Industrial Temperature Range of −40°C to 85°C
(NCV553, TA = −40°C to +125°C)
• NCP552 Provides an Enable Pin
T ypical Applications
• Battery Powered Consumer Products
• Hand−Held Instruments
• Camcorders and Cameras
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
OFF
ON
+
Output
C2
Input
C1
GND Enable
V
+
V
in
out
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4
1
SC82−AB (SC70−4)
SQ SUFFIX
CASE 419C
PIN CONNECTIONS &
MARKING DIAGRAMS
GND
1
xxxM
V
2
in
(NCP552 Top View)
GND
1
xxxM
V
2
in
(NCP553, NCV553 Top View)
xxx = Device Code
M = Date Code
4
3
4
3
Enable
V
out
N/C
V
out
This device contains 32 active transistors
Figure 1. NCP552 Typical Application Diagram
GNDN/C
Input
+
C1
This device contains 32 active transistors
V
in
Figure 2. NCP553 Typical Application Diagram
Semiconductor Components Industries, LLC, 2004
September, 2004 − Rev. 5
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
NCP552/D
+
Output
C2
1Publication Order Number:
V
out
NCP552, NCP553, NCV553
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
PIN FUNCTION DESCRIPTION
NCP552
ÁÁ
MAXIMUM RATINGS
Input Voltage
Enable Voltage (NCP552 ONLY)
Output Voltage
Power Dissipation and Thermal Characteristics
Power Dissipation
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Thermal Resistance, Junction−to−Ambient
Operating Junction TemperatureT
Operating Ambient Temperature
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NCP552, NCP553
NCV553
БББББББББББББББББ
Storage Temperature
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously . If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL−STD−883, Method 3015
Machine Model Method 200 V
2. Latch up capability (85°C) 200 mA DC with trigger voltage.
NCP553
1
2
3
4
−
1
2
3
−
ÁÁ
4
Pin Name
GND
Vin
Vout
Enable
ÁÁ
N/C
Description
Power supply ground.
Positive power supply input voltage.
Regulated output voltage.
This input is used to place the device into low−power standby. When this input is pulled low, the
device is disabled. If this function is not used, Enable should be connected to Vin.
ББББББББББББББББББББББ
No internal connection.
RatingSymbolValueUnit
V
in
Enable
V
out
P
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
D
R
JA
J
T
A
T
stg
БББББ
БББББ
БББББ
12
−0.3 to V
−0.3 to V
in
in
+0.3
+0.3
Internally Limited
400
+125°C
−40 to +85
−40 to +125
−55 to +150
V
V
V
W
ÁÁ
°C/W
°C
ÁÁ
ÁÁ
°C
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2
NCP552, NCP553, NCV553
ELECTRICAL CHARACTERISTICS (V
in
= V
out(nom.)
+ 1.0 V, V
= Vin, Cin = 1.0 F, C
enable
= 1.0 F, TJ = 25°C, unless
out
otherwise noted.)
Characteristic
Output Voltage (TA = 25°C, I
= 10 mA)
out
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
Output Voltage (TA = −40°C to 85°C, I
1.5 V
1.8 V
2.5 V
2.7 V
2.8 V
3.0 V
3.3 V
5.0 V
Output Voltage (TA = −40°C, I
= 10 mA)
out
= 10 mA)
out
SymbolMinTypMaxUnit
V
out
V
out
V
out
1.455
1.746
2.425
2.646
2.744
2.94
3.234
4.900
1.455
1.746
2.425
2.619
2.716
2.910
3.201
4.900
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
1.5
1.8
2.5
2.7
2.8
3.0
3.3
5.0
1.545
1.854
2.575
2.754
2.856
3.06
3.366
5.100
1.545
1.854
2.575
2.781
2.884
3.09
3.399
5.100
4.9005.05.100V
NCV553 −5.0 V
Output Voltage (TA = +125°C, I
= 10 mA)
out
V
out
4.8505.05.150V
NCV553 −5.0 V
Line Regulation (Vin = V
Load Regulation (I
Output Current (V
3. Maximum package power dissipation limits must be observed.
T
J(max)TA
PD
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
R
JA
V
V
mA
mV
A
mA
V
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3
NCP552, NCP553, NCV553
DEFINITIONS
Load Regulation
The change in output voltage for a change in output
current at a constant temperature.
Dropout Voltage
The input/output differential at which the regulator output
no longer maintains regulation against further reductions in
input voltage. Measured when the output drops 3.0% below
its nominal. The junction temperature, load current, and
minimum input supply r equirements a ffect t he d ropout l e vel.
Maximum Power Dissipation
The maximum total dissipation for which the regulator
will operate within its specifications.
Quiescent Current
The quiescent current is the current which flows through
the ground when the LDO operates without a load on its
output: internal IC operation, bias, etc. When the LDO
becomes loaded, this term is called the Ground current. It is
actually the difference between the input current (measured
through the LDO input pin) and the output current.
Line Regulation
The change in output voltage for a change in input voltage.
The measurement is made under conditions of low
dissipation or b y using pulse technique such that the average
chip temperature is not significantly affected.
Line Transient Response
Typical over and undershoot response when input voltage
is excited with a given slope.
Thermal Protection
Internal thermal shutdown circuitry is provided to protect
the integrated circuit in the event that the maximum junction
temperature is exceeded. When activated at typically 160°C,
the regulator turns off. This feature is provided to prevent
failures from accidental overheating.
Maximum Package Power Dissipation
The maximum power package dissipation is the power
dissipation level at which the junction temperature reaches
its maximum operating value, i.e. 125°C. Depending on the
ambient power dissipation and thus the maximum available
output current.
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4
NCP552, NCP553, NCV553
0.9
0.8
0.7
1
V
out(nom.)
= 3.0 V
80 mA
3.03
3.025
3.02
V
out(nom.)
I
= 5 mA
out
= 3.3 V
Vin = 12 V
0.6
Vin = 4 V
2010060
0−40
, DROPOUT VOLTAGE (VOLTS)
out
− V
in
V
0.5
0.4
0.3
0.2
0.1
0
−50
40 mA
250−25
5012575
TEMPERATURE (C)
100
3.015
, OUTPUT VOLTAGE (VOLTS)
3.005
out
V
3.01
3
−60
−204080
TEMPERATURE (C)
Figure 3. Dropout Voltage versus TemperatureFigure 4. Output Voltage versus Temperature
, QUIESCENT CURRENT (A)
q
I
3.25
2.75
2.5
2.25
1.75
3
2
−60
I
out
V
in
= 0 mA
= 4 V
0−40
−204080
2010060
TEMPERATURE (C)
4.5
V
4
I
out
out(nom.)
= 0 mA
= 3 V
3.5
3
2.5
2
1.5
1
, QUIESCENT CURRENT (A)
q
I
0.5
0
0
, INPUT VOLTAGE (VOLTS)
V
in
642
81210
Figure 5. Quiescent Current versus TemperatureFigure 6. Quiescent Current versus Input Voltage
Figure 11. Turn−On Response (NCP552 ONLY)Figure 12. Output Voltage versus Input Voltage
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6
NCP552, NCP553, NCV553
APPLICATIONS INFORMATION
A typical application circuit for the NCP552 series and
NCP553 series is shown in Figure 1 and Figure 2, front page.
Input Decoupling (C1)
A 1.0 F capacitor either ceramic or tantalum is
recommended and should be connected close to the package.
Higher values and lower ESR will improve the overall line
transient response. If large line or load transients are not
expected, then it is possible to operate the regulator without
the use of a capacitor.
TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K
Output Decoupling (C2)
The NCP552 and NCP553 are very stable regulators and
do not require any specific Equivalent Series Resistance
(ESR) or a minimum output current. If load transients are not
to be expected, then it is possible for the regulator to operate
with no output capacitor. Otherwise, capacitors exhibiting
ESRs ranging from a few m up to 10 can thus safely be
used. The minimum decoupling value is 0.1 F and can be
augmented to fulfill stringent load transient requirements.
The regulator accepts ceramic chip capacitors as well as
tantalum devices. Larger values improve noise rejection and
load regulation transient response.
TDK capacitor: C2012X5R1C105K, C1608X5R1A105K,
or C3216X7R1C105K
Enable Operation (NCP552 ONLY)
The enable pin will turn on the regulator when pulled high
and turn off the regulator when pulled low. These limits of
threshold are covered in the electrical specification section
of this data sheet. If the enable is not used then the pin should
be connected to V
Hints
.
in
Please be sure the Vin and GND lines are sufficiently
wide. When the impedance of these lines is high, there is a
chance to pick up noise or cause the regulator to
malfunction.
Set external components, especially the output capacitor,
as close as possible to the circuit, and make leads as short as
possible.
Thermal
As power across the NCP552 and NCP553 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 also the
ambient temperature effect the rate of temperature rise for
the part. This is stating that when the devices have good
thermal conductivity through the PCB, the junction
temperature will be relatively low with high power
dissipation applications.
The maximum dissipation the package can handle is
given by:
T
PD
J(max)TA
R
JA
If junction temperature is not allowed above the
maximum 125°C, then the NCP552 and NCP553 can
dissipate up to 250 mW @ 25°C.
The power dissipated by the NCP552 and NCP553 can be
calculated from the following equation:
[
P
Vin*I
tot
gnd(Iout
][
)
Vin V
out
]
*I
out
or
V
inMAX
P
tot
I
gnd
V
out
I
out
*
I
out
If an 80 mA output current is needed then the ground
current from the data sheet is 2.8 A. For an NCP552 or
NCP553 (3.0 V), the maximum input voltage will then be
NOCAP is a trademark of Semiconductor Components Industries, LLC.
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 61312, Phoenix, Arizona 85082−1312 USA
Phone: 480−829−7710 or 800−344−3860 Toll Free USA/Canada
Fax: 480−829−7709 or 800−344−3867Toll Free USA/Canada
Email: orderlit@onsemi.com
N. American Technical Support: 800−282−9855 Toll Free
USA/Canada
Japan: ON Semiconductor, Japan Customer Focus Center
2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051
Phone: 81−3−5773−3850
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ON Semiconductor Website: http://onsemi.com
Order Literature: http://www.onsemi.com/litorder
For additional information, please contact your
local Sales Representative.
NCP552/D
10
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