© Semiconductor Components Industries, LLC, 2009
June, 2009 − Rev. 15
1Publication Order Number:
NCP512/D
NCP512
80 mA CMOS Low Iq
Voltage Regulator
The NCP512 series of fixed output linear regulators are designed for
handheld communication equipment and portable battery powered
applications which require low quiescent. The NCP512 series features
an ultra−low quiescent current of 40 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 NCP512 has been designed to be used with low cost ceramic
capacitors. The device is housed in the micro−miniature SC70−5
surface mount package. Standard voltage versions are 1.3, 1.5, 1.8,
2.2, 2.5, 2.7, 2.8, 3.0, 3.1, 3.3, and 5.0 V. Other voltages are available
in 100 mV steps.
Features
•Low Quiescent Current of 40 A Typical
•Low Dropout Voltage of 180 mV at 80 mA and 3.0 V Vout
•Low Output Voltage Option
•Output Voltage Accuracy of 2.0%
•Industrial Temperature Range of −40°C to 85°C
•These are Pb−Free Devices
Typical Applications
•Cellular Phones
•Battery Powered Consumer Products
•Hand−Held Instruments
•Camcorders and Cameras
Figure 1. Typical Application Diagram
This device contains 86 active transistors
Vout
Battery or
Unregulated
Voltage C1
C2
OFF
ON
1
2
3
5
4
+
+
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
ORDERING INFORMATION
SC70−5/SC−88A/
SOT−353
SQ SUFFIX
CASE 419A
1
5
PIN CONNECTIONS
1
3N/C
Vin
2GND
Enable 4
Vout
5
(Top View)
MARKING
DIAGRAM
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xxx M G
M
G
xxx = Device Code
M = Date Code*
G= Pb−Free Package
*Date Code orientation and/or position may
vary depending upon manufacturing location.
(Note: Microdot may be in either location)
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2
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
PIN FUNCTION DESCRIPTION
ÁÁÁÁ
ÁÁÁÁ
Pin No.
ÁÁÁÁÁ
ÁÁÁÁÁ
Pin Name
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Description
ÁÁÁÁ
ÁÁÁÁ
1
ÁÁÁÁÁ
ÁÁÁÁÁ
Vin
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Positive power supply input voltage.
ÁÁÁÁ
ÁÁÁÁ
2
ÁÁÁÁÁ
ÁÁÁÁÁ
GND
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Power supply ground.
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
3
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
Enable
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
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.
ÁÁÁÁ
ÁÁÁÁ
4
ÁÁÁÁÁ
ÁÁÁÁÁ
N/C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
No internal connection.
ÁÁÁÁ
ÁÁÁÁ
5
ÁÁÁÁÁ
ÁÁÁÁÁ
Vout
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Regulated output voltage.
MAXIMUM RATINGS
Rating Symbol Value Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Input Voltage
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Vin
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
0 to 6.0
ÁÁÁÁ
ÁÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Enable Voltage
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Enable
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−0.3 to Vin +0.3
ÁÁÁÁ
ÁÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Voltage
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Vout
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−0.3 to Vin +0.3
ÁÁÁÁ
ÁÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Power Dissipation and Thermal Characteristics
Power Dissipation
Thermal Resistance, Junction−to−Ambient
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
PD
RJA
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Internally Limited
400
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
W
°C/W
Operating Junction Temperature TJ+150 °C
Maximum Junction Temperature TJ(max) +150 °C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Operating Ambient Temperature
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
TA
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−40 to +85
ÁÁÁÁ
ÁÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Storage Temperature
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Tstg
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
−55 to +150
ÁÁÁÁ
ÁÁÁÁ
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
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.
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ELECTRICAL CHARACTERISTICS (Vin = Vout(nom.) + 1.0 V, Venable = Vin, Cin = 1.0 F, Cout = 1.0 F, TJ = 25°C, unless
otherwise noted.)
Characteristic Symbol Min Typ Max Unit
Output Voltage (TA = 25°C, Iout = 10 mA)
1.3 V
1.5 V
1.8 V
2.2 V
2.5 V
2.7 V
2.8 V
3.0 V
3.1 V
3.3 V
5.0 V
Vout
1.261
1.455
1.746
2.134
2.425
2.646
2.744
2.94
3.038
3.234
4.900
1.3
1.5
1.8
2.2
2.5
2.7
2.8
3.0
3.1
3.3
5.0
1.339
1.545
1.854
2.266
2.575
2.754
2.856
3.06
3.162
3.366
5.100
V
Output Voltage (TA = −40°C to 85°C, Iout = 10 mA)
1.3 V
1.5 V
1.8 V
2.2 V
2.5 V
2.7 V
2.8 V
3.0 V
3.1 V
3.3 V
5.0 V
Vout
1.261
1.455
1.746
2.134
2.425
2.619
2.716
2.910
3.007
3.201
4.900
1.3
1.5
1.8
2.2
2.5
2.7
2.8
3.0
3.1
3.3
5.0
1.339
1.545
1.854
2.266
2.575
2.781
2.884
3.09
3.193
3.399
5.100
V
Line Regulation (Iout = 10 mA)
1.3 V−4.4 V (Vin = Vout(nom.) + 1.0 V to 6.0 V)
4.5 V−5.0 V (Vin = 5.5 V to 6.0 V)
Regline
−
−
1.0
1.0
3.0
3.0
mV/V
Load Regulation (Iout = 1.0 mA to 80 mA) Regload −0.3 0.8 mV/mA
Output Current (Vout = (Vout at Iout = 80 mA) −3%)
1.3 V−3.9 V (Vin = Vout(nom.) + 2.0 V)
4.0 V−5.0 V (Vin = 6.0 V)
Io(nom.)
80
80
200
200
−
−
mA
Dropout Voltage (TA = −40°C to 85°C, Iout = 80 mA,
Measured at Vout = Vout(nom) −3.0%)
1.3 V
1.5 V
1.8 V
2.2 V
2.5 V
2.7 V
2.8 V
3.0 V
3.1 V
3.3 V
5.0 V
Vin−Vout
−
−
−
−
−
−
−
−
−
−
520
450
350
240
220
200
200
180
170
160
120
700
550
450
300
300
300
300
300
300
300
300
mV
Ground Current (Enable Input = Vin, Iout = 1.0 mA to Io(nom.)) IGND −40 90 A
Quiescent Current (TA = −40°C to 85°C)
(Enable Input = 0 V)
(Enable Input = Vin, Iout = 1.0 mA to Io(nom.))
IQ
−
−
0.1
40
1.0
90
A
Output Short Circuit Current (Vout = 0 V)
1.3 V−3.9 V (Vin = Vout(nom.) + 2.0 V)
4.0 V−5.0 V (Vin = 6.0 V)
Iout(max)
150
150
250
250
400
400
mA
Output Voltage Noise (f = 100 Hz to 100 kHz, Iout = 30 mA, Cout = 1 F) Vn−180 −VRMS
Ripple Rejection (f = 1.0 kHz, 60 mA) RR −50 −dB
Enable Input Threshold Voltage
(Voltage Increasing, Output Turns On, Logic High)
(Voltage Decreasing, Output Turns Off, Logic Low)
Vth(en)
1.3
−
−
−
−
0.3
V
Output Voltage Temperature Coefficient TC−"100 −ppm/°C
3. Maximum package power dissipation limits must be observed.
PD +TJ(max) *TA
RJA
4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
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TYPICAL CHARACTERISTICS
200
−50 −25 0 25 50 75 100
150
100
50
0
125
TEMPERATURE (°C)
Figure 2. Dropout Voltage vs. Temperature
Vin − Vout, DROPOUT VOLTAGE (mV)
250
300
3.010
−60 −40 −20 0 20 40 60
3.005
3.000
2.990
2.985
100
TEMPERATURE (°C)
Figure 3. Output Voltage vs. Temperature
Vout, OUTPUT VOLTAGE (V)
3.015
3.020
80
2.995
−60 −40 −20 0 20 40 60
48
44
42
100
TEMPERATURE (°C)
Figure 4. Quiescent Current vs. Temperature
Iq, QUIESCENT CURRENT (A)
80
46
40
40
0 1.0 2.0 3.0 4.0 5.0 6.0
30
20
10
0
7.0
Vin, INPUT VOLTAGE (V)
Figure 5. Quiescent Current vs. Input Voltage
50
60
Iq, QUIESCENT CURRENT (A)
40
0 1.0 2.0 3.0 4.0 5.0 6.0
30
20
10
0
7.0
Vin, INPUT VOLTAGE (V)
Figure 6. Ground Pin Current vs. Input Voltage
50
60
Ignd, GROUND CURRENT (A)
40
100 1.0k 10k 100k 1.0M
30
20
10
0
FREQUENCY (Hz)
Figure 7. Ripple Rejection vs. Frequency
50
60
RIPPLE REJECTION (dB)
70
Io = 80 mA
NCP512SQ30
Io = 40 mA
Io = 10 mA
Vin = 6.0 V
Vin = 4.0 V
Iout = 0 mA
Vin = 4.0 V
Vout = 3.0 V
Vout = 3.0 V
Cin = 1.0 F
Cout = 1.0 F
TA = 25°C
Vout = 3.0 V
Cin = 1.0 F
Cout = 1.0 F
Iout = 30 mA
TA = 25°C
Vin = 4.0 V
Cout = 1.0 F
Iout = 30 mA
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TYPICAL CHARACTERISTICS
4
10 1.0k 10k 100k 1.0M
3
2
1
0
FREQUENCY (Hz)
Figure 8. Output Noise Density
5
6
OUTPUT VOLTAGE NOISE (V/ǰHz )
7
100
Figure 9. Line Transient Response
−100
0 50 200 250 300
TIME (s)
0
100
200
3
4
5
6
100 150
OUTPUT VOLTAGE
DEVIATION (mV)
Vin = 4.0 V
Cout = 1.0 F
Iout = 30 mA
400 450 500350
7
Vin, INPUT
VOLTAGE (V)
Cout = 1.0 F
Iout = 10 mA
Figure 10. Load Transient Response
−100
0 200 300
TIME (s)
0
100
200
0
100
OUTPUT VOLTAGE
DEVIATION (mV)
400 500
Io, OUTPUT
CURRENT (mA)
Iout = 1 mA to 60 mA
Vin = 4.0 V
Cin = 1.0 F
Cout = 1.0 F
−200
600 700 800
60 mA
Figure 11. Turn−on Response
0 0.2 0.8 1.0 1.2
TIME (ms)
0
1
2
3
4
0
2
0.4 0.6
OUTPUT VOLTAGE
(V)
1.6 1.8 2.01.4
4
Vin, INPUT
VOLTAGE (V)
6
Iout = 10 mA
Vin = 4.0 V
Cin = 1.0 F
Cout = 1.0 F
2.5
0 1.0 2.0 3.0 4.0 5.0 6.0
2.0
1.5
0.5
0
Vin, INPUT VOLTAGE (V)
Vout, OUTPUT VOLTAGE (V)
3.0
3.5
1.0
Figure 12. Output Voltage vs. Input Voltage
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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 requirements affect the dropout level.
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 by 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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APPLICATIONS INFORMATION
A typical application circuit for the NCP512 series is
shown in Figure 1, front page.
Input Decoupling (C1)
A 1.0 F capacitor either ceramic or tantalum is
recommended and should be connected close to the NCP512
package. Higher values and lower ESR will improve the
overall line transient response.
TDK capacitor: C2012X5R1C105K, or C1608X5R1A105K
Output Decoupling (C2)
The NCP512 is a stable regulator and does not require any
specific Equivalent Series Resistance (ESR) or a minimum
output current. Capacitors exhibiting ESRs ranging from a
few m up to 5.0 can thus safely be used. The minimum
decoupling value is 1.0 F and can be augmented to fulfill
stringent load transient requirements. The regulator accepts
ceramic chip capacitors as well as tantalum capacitors.
Larger values improve noise rejection and load regulation
transient response.
TDK capacitor: C2012X5R1C105K, C1608X5R1A105K,
or C3216X7R1C105K
Enable Operation
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 Vin.
Hints
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 NCP512 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 NCP512 has 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:
PD +TJ(max) *TA
RJA
If junction temperature is not allowed above the
maximum 125°C, then the NCP512 can dissipate up to
250 mW @ 25°C.
The power dissipated by the NCP512 can be calculated
from the following equation:
Ptot +ƪVin *I
gnd (Iout)ƫ)[Vin *Vout]*I
out
or
VinMAX +Ptot )Vout *Iout
Ignd )Iout
If an 80 mA output current is needed then the ground
current from the data sheet is 40 A. For an NCP512 (3.0 V),
the maximum input voltage will then be 6.12 V.
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ORDERING INFORMATION
Device
Nominal
Output Voltage* Marking Package Shipping†
NCP512SQ13T1G 1.3 LIW
SC−88A (SOT−353)
(Pb−Free)
3000 Units/
7″ Tape & Reel
NCP512SQ13T2G
NCP512SQ15T1G 1.5 LCK
NCP512SQ15T2G
NCP512SQ18T1G 1.8 LCL
NCP512SQ18T2G
NCP512SQ22T1G 2.2 LIA
NCP512SQ22T2G
NCP512SQ25T1G 2.5 LCM
NCP512SQ25T2G
NCP512SQ27T1G 2.7 LCN
NCP512SQ27T2G
NCP512SQ28T1G 2.8 LCO
NCP512SQ28T2G
NCP512SQ30T1G 3.0 LCP
NCP512SQ30T2G
NCP512SQ31T1G 3.1 LFO
NCP512SQ31T2G
NCP512SQ33T1G 3.3 LCQ
NCP512SQ33T2G
NCP512SQ50T1G 5.0 LCR
NCP512SQ50T2G
*Additional voltages in 100 mV steps are available upon request by contacting your ON Semiconductor representative.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
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PACKAGE DIMENSIONS
SC−88A/SOT−353/SC70−5
SQ SUFFIX
CASE 419A−02
ISSUE J
ǒmm
inchesǓ
SCALE 20:1
0.65
0.025
0.65
0.025
0.50
0.0197
0.40
0.0157
1.9
0.0748
*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 ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. 419A−01 OBSOLETE. NEW STANDARD
419A−02.
4. DIMENSIONS A AND B DO NOT INCLUDE
MOLD FLASH, PROTRUSIONS, OR GATE
BURRS.
DIM
A
MIN MAX MIN MAX
MILLIMETERS
1.80 2.200.071 0.087
INCHES
B1.15 1.350.045 0.053
C0.80 1.100.031 0.043
D0.10 0.300.004 0.012
G0.65 BSC0.026 BSC
H--- 0.10---0.004
J0.10 0.250.004 0.010
K0.10 0.300.004 0.012
N0.20 REF0.008 REF
S2.00 2.200.079 0.087
B0.2 (0.008) MM
12 3
45
A
G
S
D 5 PL
H
C
N
J
K
−B−
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