This series of fixed output low−dropout linear regulators are
designed for handheld communication equipment and portable battery
powered applications which require low quiescent current. This series
features an ultra−low quiescent current of 2.5 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 NCP662/NCV662 series
provides an enable pin for ON/OFF control.
This series has been designed to be used with low cost ceramic
capacitors and requires a minimum output capacitor of 0.1 F. The
device is 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.
Features
• Low Quiescent Current of 2.5 A Typical
• Low Output Voltage Option
• Output Voltage Accuracy of 2.0%
• Temperature Range for NCV662/NCV663 −40°C to 125°C
Temperature Range for NCP662/NCP663 −40°C to 85°C
• NCP662/NCV662 Provides as Enable Pin
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
• Pb−Free Packages are Available
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4
1
SC82−AB (SC70−4)
SQ SUFFIX
CASE 419C
PIN CONNECTIONS &
MARKING DIAGRAMS
GND
1
xxxM
V
2
in
(NCP662/NCV662 Top View)
GND
1
xxxM
4
3
4
Enable
V
out
N/C
T ypical Applications
• Battery Powered Instruments
• Hand−Held Instruments
• Camcorders and Cameras
• Automotive Infotainment
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
Semiconductor Components Industries, LLC, 2005
March, 2005 − Rev. 1
1Publication Order Number:
V
2
in
(NCP663/NCV663 Top View)
xxx = Device Code
M = Date Code
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
V
3
out
NCP662/D
Input
C1
NCP662, NCV662, NCP663, NCV663
ON
GND Enable
OFF
V
+
V
in
out
+
C2
Output
Input
C1
+
GNDN/C
V
V
in
out
+
Output
C2
This device contains 28 active transistors
Figure 1. NCP662/NCV662 Typical Application
Diagram
This device contains 28 active transistors
Figure 2. NCP663/NCV663 Typical Application
Diagram
PIN FUNCTION DESCRIPTION
NCP662/
NCV662
11GNDPower supply ground.
22VinPositive power supply input voltage.
33VoutRegulated output voltage.
4−EnableThis input is used to place the device into low−power standby. When this input is pulled low, the
−4N/CNo internal connection.
NCP663/
NCV663
Pin NameDescription
device is disabled. If this function is not used, Enable should be connected to Vin.
MAXIMUM RATINGS
RatingSymbolValueUnit
Input VoltageV
in
Enable Voltage (NCP662/NCV662 ONLY)Enable−0.3 to V
Output VoltageV
out
Power Dissipation and Thermal Characteristics
Power Dissipation
Thermal Resistance, Junction to Ambient
Operating Junction TemperatureT
Operating Ambient Temperature
P
D
R
JA
J
T
A
NCP662/NCP663
NCV662/NCV663
Storage TemperatureT
stg
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) 100 mA DC with trigger voltage.
6.0V
+0.3V
in
−0.3 to V
+0.3V
in
Internally Limited
330
+150°C
−40 to +85
−40 to +125
−55 to +150°C
W
°C/W
°C
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2
NCP662, NCV662, NCP663, NCV663
ELECTRICAL CHARACTERISTICS
(V
= V
in
Output Voltage (I
NCP662/NCP663: TA = −40°C to 85°C
NCV662/NCV663: T
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
Line Regulation
1.5 V−4.4 V (Vin = V
4.5 V−5.0 V (V
Load Regulation (I
Output Current (V
1.5 V to 3.9 V (Vin = V
4.0 V−5.0 V (V
Dropout Voltage (I
NCP662/NCP663: TA = −40°C to 85°C
NCV662/NCV663: T
1.5 V−1.7 V
1.8 V−2.4 V
2.5 V−2.6 V
2.7 V−2.9 V
3.0 V−3.2 V
3.3 V−4.9 V
5.0 V
Quiescent Current
(Enable Input = 0 V)
(Enable Input = V
Output Short Circuit Current
1.5 V to 3.9 V (Vin = V
4.0 V−5.0 V (V
Output Voltage Noise (f = 100 Hz to 100 kHz, V
Enable Input Threshold Voltage (NCP662/NCV662 ONLY)
3. Maximum package power dissipation limits must be observed.
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
out(nom.)
PD
+ 1.0 V, V
= Vin, Cin = 1.0 F, C
enable
= 1.0 F, TJ = 25°C, unless otherwise noted.)
out
Characteristic
= 1.0 mA)
out
= −40°C to 125°C
A
= 100 mA)
out
+ 1.0 V to 6.0 V
o(nom.)
= 5.5 V to 6.0 V)
in
= 10 mA to 100 mA)Reg
out
= (V
at I
out
out
out(nom.)
= 6.0 V)
in
= 100 mA, Measured at V
out
= −40°C to 125°C
A
, I
= 1.0 mA to I
in
out
nom
= 6.0 V)
in
T
J(max)TA
R
JA
out
+ 2.0 V)
+ 2.0 V)
= 100 mA) −3.0%)
−3.0%)
out
)
o(nom.)
= 3.0 V)V
out
SymbolMinTypMaxUnit
V
out
V
out
Reg
load
I
o(nom.)
Vin−V
I
Q
I
out(max)
n
V
th(en)
C
line
1.463
1.755
2.438
2.646
2.744
2.940
3.234
4.9
1.433
1.719
2.388
2.592
2.688
2.880
3.168
4.8
−
−
−2040mV
100
100
out
−
−
−
−
−
−
−
−
−
150
150
−100−Vrms
1.3
−
−100−ppm/°C
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
10
10
280
280
680
500
300
280
250
230
170
0.1
2.5
300
300
−
−
1.538
1.845
2.563
2.754
2.856
3.060
3.366
5.1
1.568
1.881
2.613
2.808
2.912
3.120
3.432
5.2
20
20
−
−
950
700
500
500
420
420
300
1.0
6.0
600
600
−
0.5
V
V
mV
mA
mV
A
mA
V
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3
NCP662, NCV662, NCP663, NCV663
2.9
VIN = 4.0 V
V
2.7
I
OUT
OUT
= 3.0 V
= 0 mA
2.5
2.3
2.1
, QUIESCENT CURRENT (A)
1.9
Q
I
1.7
406080
T, TEMPERATURE (°C)
Figure 3. Quiescent Current versus Temperature
3.020
3.015
3.010
3.005
3.000
, OUTPUT VOLTAGE (V)
OUT
2.995
V
2.990
V
OUT(nom)
I
= 10 mA
OUT
= 3.0 V
080
T, TEMPERATURE (°C)
VIN = 4.0 V
VIN = 6.0 V
3
V
2.5
OUT
= 3.0 V
2
1.5
1
0.5
, QUIESCENT CURRENT (A)
Q
I
0
100200−20−40−60
, INPUT VOLTAGE (V)
V
IN
4
653210
Figure 4. Quiescent Current versus Input
Voltage
3.5
3
I
= 30 mA
OUT
2.5
2
1.5
1
, OUTPUT VOLTAGE (V)
OUT
V
0.5
100604020−20−40−60
0
2345
, INPUT VOLTAGE (V)
V
IN
610
Figure 5. Output Voltage versus TemperatureFigure 6. Output Voltage versus Input Voltage
300
250
200
150
100
, DROPOUT VOLTAGE (mV)
OUT
50
− V
IN
V
V
OUT(nom)
= 3.0 V
80 mA LOAD
40 mA LOAD
10 mA LOAD
−2505075100
T, TEMPERATURE (°C)
12525−50
4
2
ENABLE
0
VOLTAGE (V)
3
2
, OUTPUT
1
OUT
VOLTAGE (V)
V
00
150
t, TIME (s)
Figure 7. Dropout Voltage versus TemperatureFigure 8. Turn−On Response
(NCP662/NCV662 ONLY)
VIN = 4.0 V
C
= 1.0 F
IN
C
= 0.1 F
OUT
I
= 10 mA
OUT
300350
400250200100500
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4
NCP662, NCV662, NCP663, NCV663
0
6
5
, INPUT
4
IN
V
VOLTAGE (V)
3
1
0.5
0
−0.5
DEVIATION (V)
OUTPUT VOLTAGE
−1
60
30
, OUTPUT
0
OUT
I
CURRENT (mA)
−30
400
200
0
−200
DEVIATION (mV)
OUTPUT VOLTAGE
−400
60
I
= 1.0 mA to
OUT
30
0
, OUTPUT
OUT
I
−30
CURRENT (mA)
V
IN
30 mA
= 4.0 V
1
V
= 3.0 V
OUT
= 0.1 F
C
OUT
150300 350
t, TIME (s)
400 450
V
= 3.0 V
OUT
C
= 0.1 F
OUT
I
= 10 mA
OUT
150300 350
t, TIME (s)
400 450
500250200100500
0.5
−0.5
DEVIATION (mV)
OUTPUT VOLTAGE
−1
0
Figure 9. Line Transient ResponseFigure 10. Load Transient Response
3.5
I
= 1.0 mA to 30 mA
OUT
V
IN
= 4.0 V
3
2.5
VIN = 5.0 V
= 3.0 V
V
OUT
I
= 50 mA
OUT
C
= 0.1 F
OUT
2
1.5
1
C
= 1.0 F
OUT
V
= 3.0 V
OUT
400800
300700
t, TIME (s)
6002001005000
900 1000
0.5
, OUTPUT VOLTAGE NOISE (mV/√Hz)
n
0
V
10.10.01
10100
f, FREQUENCY (kHz)
Figure 11. Load Transient ResponseFigure 12. Output Voltage Noise
500250200100500
100
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5
NCP662, NCV662, NCP663, NCV663
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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NCP662, NCV662, NCP663, NCV663
APPLICATIONS INFORMATION
A typical application circuit for the NCP662/NCV662
and NCP663/NCV663 series are shown in Figure 1 and
Figure 2.
Input Decoupling (C1)
A 1.0 F capacitor, either ceramic or tantalum is
recommended and should be connected close to the device
package. Higher capacitance values and lower ESR will
improve the overall line transient response.
TDK capacitor: C2012X5R1C105K or C1608X5R1A105K
Output Decoupling (C2)
The NCP662/NCV662 and NCP663/NCV663 are very
stable regulators and do not require any specific Equivalent
Series Resistance (ESR) or a minimum output current.
Capacitors exhibiting ESRs ranging from a few m up to
10 can 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 (NCP662/NCV662 ONLY)
The enable pin will turn on the regulator when pulled high
and turn off the regulator when pulled low. The threshold
limits are covered in the electrical specification section of
the data sheet. If the enable is not used, 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.
Place 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 NCP662/NCV662 and
NCP663/NCV663 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. The mounting pad configuration on the
PCB, the board material, and the ambient temperature e f fect
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 NCP662/NCV662 and
NCP663/NCV663 can dissipate up to 300 mW @ 25°C.
The power dissipated by the NCP662/NCV662 and
NCP663/NCV663 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 100 mA output current is needed then the ground
current from the data sheet is 2.5 A. For the
NCP662/NCV662 or NCP663/NCV663 (3.0 V), the
maximum input voltage is 6.0 V.
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “ G”,
may or may not be present.
0.70
0.028
SCALE 10:1
ǒ
inches
mm
Ǔ
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
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DOCUMENT NUMBER:
DESCRIPTION:
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