NCV4264-2CST50T3G [ONSEMI]
Low IQ Low Dropout Linear Regulator;
| 型号： | NCV4264-2CST50T3G |
| 厂家： | 
ONSEMI |
| 描述： | Low IQ Low Dropout Linear Regulator |
| 文件： | 总10页 (文件大小：78K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCV4264-2C
Low IQ Low Dropout
Linear Regulator
The NCV4264−2C is a low quiescent current consumption LDO
regulator. Its output stage supplies 100 mA with 2.0% output
voltage accuracy.
Maximum dropout voltage is 500 mV at 100 mA load current.
It is internally protected against 45 V input transients, input supply
reversal, output overcurrent faults, and excess die temperature. No
external components are required to enable these features.
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MARKING
DIAGRAM
Features
TAB
• 3.3 V and 5.0 V Fixed Output
SOT−223
ST SUFFIX
CASE 318E
AYW
642CxG
G
• "2.0% Output Accuracy, Over Full Temperature Range
• 33 mA Typical Quiescent Current
1
2
3
1
• 500 mV Maximum Dropout Voltage at 100 mA Load Current
• Wide Input Voltage Operating Range of 4.5 V to 45 V
• Internal Fault Protection
♦ −42 V Reverse Voltage
♦ Short Circuit/Overcurrent
♦ Thermal Overload
x
= 5 (5.0 V Version)
= 3 (3.3 V Version)
= Assembly Location
= Year
= Work Week
= Pb−Free Package
A
Y
W
G
(Note: Microdot may be in either location)
• NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
PIN CONNECTIONS
• This is a Pb−Free Device
TAB
1
V
IN
GND V
OUT
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
©
Semiconductor Components Industries, LLC, 2015
1
Publication Order Number:
October, 2015 − Rev. 1
NCV4264−2C/D
NCV4264−2C
IN
OUT
1.3 V
Reference
+
Error
Amp
-
Thermal
Shutdown
GND
Figure 1. Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
Symbol
Function
1
2
V
Unregulated input voltage; 4.5 V to 45 V.
Ground; substrate.
IN
GND
3
V
Regulated output voltage; collector of the internal PNP pass transistor.
Ground; substrate and best thermal connection to the die.
OUT
TAB
GND
OPERATING RANGE
Rating
Symbol
Min
Max
Unit
V
IN
4.5
+45
V
V , DC Input Operating Voltage (Note 3)
IN
Junction Temperature Operating Range
T
J
−40
+150
°C
Functionaloperation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the
RecommendedOperating Ranges limits may affect device reliability.
MAXIMUM RATINGS
Rating
Symbol
Min
Max
Unit
V
IN
−42
+45
V
V , DC Input Voltage
IN
V
, DC Voltage
V
−0.3
−55
+32
V
°C
−
OUT
OUT
Storage Temperature
T
+150
stg
Moisture Sensitivity Level
MSL
3
ESD Capability, Human Body Model (Note 1)
ESD Capability, Machine Model (Note 1)
V
4000
200
−
−
V
ESDHB
V
V
ESDMIM
Lead Temperature Soldering
Reflow (SMD Styles Only), Lead Free (Note 2)
T
sld
°C
−
265 pk
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. This device series incorporates ESD protection and is tested by the following methods:
ESD HBM tested per AEC−Q100−002 (EIA/JESD22−A 114C)
ESD MM tested per AEC−Q100−003 (EIA/JESD22−A 115C)
2. Lead Free, 60 sec – 150 sec above 217°C, 40 sec max at peak.
3. See specific conditions for DC operating input voltage lower than 4.5 V in ELECTRICAL CHARACTERISTICS table at page 3
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2
NCV4264−2C
THERMAL RESISTANCE
Parameter
Symbol
Min
−
Max
109 (Note 4)
10.9
Unit
Junction−to−Ambient
SOT−223
SOT−223
R
q
JA
°C/W
Junction−to−Tab (psi−JL4)
Y
JL4
−
ELECTRICAL CHARACTERISTICS (V = 13.5 V, T = −40°C to +150°C, unless otherwise noted.)
IN
J
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Output Voltage
5.0 V Version
V
V
V
4.900
5.000
5.100
V
OUT
OUT
OUT
5.0 mA v I v 100 mA (Note 5)
OUT
6.0 V v V v 28 V
IN
Output Voltage
3.3 V Version
3.234
3.300
3.366
V
5.0 mA v I
v 100 mA (Note 5)
OUT
4.5 V v V v 28 V
IN
Output Voltage
3.3 V Version
3.234
−30
3.300
5.0
3.366
+30
V
I
= 5 mA, V = 4 V (Note 7)
IN
OUT
Line Regulation
5.0 V Version
DV
DV
vs. V
vs. V
I = 5.0 mA
OUT
mV
mV
OUT
OUT
OUT
IN
6.0 V v V v 28 V
IN
Line Regulation
3.3 V Version
I
= 5.0 mA
−30
5.0
+30
IN
OUT
4.5 V v V v 28 V
IN
Load Regulation
DV
vs. I
1.0 mA v I
v 100 mA (Note 5)
−40
−
5.0
+40
500
mV
mV
mA
OUT
OUT
Dropout Voltage − 5.0 V Version
Quiescent Current
V
−V
IN OUT
I
= 100 mA (Notes 5 & 6)
270
OUT
I
q
I
= 100 mA
OUT
T = 25°C
−
−
−
33
33
33
55
60
70
J
T = −40°C to +85°C
J
J
T = −40°C to 150°C
Active Ground Current
Power Supply Rejection
PROTECTION
I
I
= 50 mA (Note 5)
−
−
1.5
67
4.0
−
mA
dB
G(ON)
OUT
PSRR
V
= 0.5 V , F = 100 Hz
RIPPLE P−P
Current Limit
I
V
OUT
V
OUT
= 4.5 V (5.0 V Version) (Note 5)
= 3.0 V (3.3 V Version) (Note 5)
150
150
−
−
500
500
mA
OUT(LIM)
Short Circuit Current Limit
I
V
OUT
= 0 V (Note 5)
(Note 7)
40
−
−
500
200
mA
OUT(SC)
Thermal Shutdown Threshold
T
TSD
150
°C
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performancemay not be indicated by the Electrical Characteristics if operated under different conditions.
2
4. 1 oz., 100 mm copper area.
5. Use pulse loading to limit power dissipation.
6. Dropout voltage = (V –V
), measured when the output voltage has dropped 100 mV relative to the nominal value obtained with
IN OUT
V
IN
= 13.5 V.
7. Not tested in production. Limits are guaranteed by design.
4.5−45 V
Input
V
in
V
out
1
3
Output
4264−2C
2
C
IN
C
10 mF
OUT
100 nF
GND
Figure 2. Applications Circuit
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3
NCV4264−2C
TYPICAL CHARACTERISTIC CURVES − 5 V Version
100
Unstable Region
10
1
Stable Region
0.1
C
OUT
≥ 10 mF
0.01
0
10 20 30 40 50 60 70 80 90 100
, OUTPUT CURRENT (mA)
I
OUT
Figure 3. Output Stability with Output
Capacitor ESR (5.0 V Version)
6
5
4
3
2
5.10
5.05
5.00
R = 50 W
L
T = 25°C
J
4.95
4.90
V
= 13.5 V
IN
1
0
R = 1 kW
L
−40
0
40
80
120
160
0
1
2
3
4
5
6
7
8
9
10
T , JUNCTION TEMPERATURE (°C)
J
V , INPUT VOLTAGE (V)
IN
Figure 4. Output Voltage vs. Junction
Temperature (5.0 V Version)
Figure 5. Output Voltage vs. Input Voltage
(5.0 V Version)
400
350
300
250
200
150
100
350
300
250
200
T = 125°C
J
T = 25°C
J
T = −40°C
J
150
100
V
= 0 V
OUT
T = 25°C
J
50
0
50
0
0
25
50
75
100
125
150
0
5
10
15
20
25
30
35
40 45
I , OUTPUT CURRENT (mA)
OUT
V , INPUT VOLTAGE (V)
IN
Figure 6. Dropout Voltage vs. Output Current
(only 5.0 V Version)
Figure 7. Maximum Output Current vs. Input
Voltage (5.0 V Version)
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4
NCV4264−2C
TYPICAL CHARACTERISTIC CURVES − 5 V Version
4.0
3.5
3.0
2.5
2.0
1.5
1.0
100
90
V
= 13.5 V
IN
80
70
60
50
40
30
20
V
= 13.5 V
IN
T = 25°C
J
T = 25°C
J
0.5
0
10
0
0
50
100
150
0
1
2
3
4
5
I , OUTPUT CURRENT (mA)
OUT
I , OUTPUT CURRENT (mA)
OUT
Figure 8. Quiescent Current vs. Output Current
(5.0 V Version) (High Load)
Figure 9. Quiescent Current vs. Output Current
(5.0 V Version) (Low Load)
4.0
3.5
3.0
2.5
T = 25°C
J
R = 50 W
2.0
1.5
1.0
L
R = 100 W
L
0.5
0
0
5
10
15
20
25
30
35
40
V , INPUT VOLTAGE (V)
IN
Figure 10. Quiescent Current vs. Input Voltage
(5.0 V Version)
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5
NCV4264−2C
TYPICAL CHARACTERISTIC CURVES − 3.3 V Version
100
Unstable Region
10
1
Stable Region
0.1
C
OUT
≥ 10 mF
0.01
0
10 20 30 40
50 60 70 80 90 100
I , OUTPUT CURRENT (mA)
OUT
Figure 11. Output Stability with Output
Capacitor ESR (3.3 V Version)
3.36
3.34
3.32
3.30
4
3
2
3.28
R = 33 W
T = 25°C
J
L
1
0
V
= 13.5 V
IN
R = 660 W
3.26
3.24
L
−40
0
40
80
120
160
0
1
2
3
4
5
6
7
8
9
10
T , JUNCTION TEMPERATURE (°C)
J
V , INPUT VOLTAGE (V)
IN
Figure 12. Output Voltage vs. Junction
Temperature (3.3 V Version)
Figure 13. Output Voltage vs. Input Voltage
(3.3 V Version)
350
300
250
200
150
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
T = 25°C
J
R = 50 W
L
V
= 0 V
OUT
R = 100 W
L
T = 25°C
J
50
0
0.2
0
0
5
10
15
20
25
30
35
40
45
0
5
10
15
20
25
30
35
40
V , INPUT VOLTAGE (V)
IN
V , INPUT VOLTAGE (V)
IN
Figure 14. Maximum Output Current vs. Input
Voltage (3.3 V Version)
Figure 15. Quiescent Current vs. Input Voltage
(3.3 V Version)
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6
NCV4264−2C
TYPICAL CHARACTERISTIC CURVES − 3.3 V Version
4.0
3.5
100
90
80
70
60
50
40
30
20
3.0
2.5
2.0
1.5
1.0
V
IN
= 13.5 V
V
= 13.5 V
IN
0.5
0
T = 25°C
J
10
0
T = 25°C
J
0
50
100
150
0
1
2
3
4
5
I , OUTPUT CURRENT (mA)
OUT
I , OUTPUT CURRENT (mA)
OUT
Figure 16. Quiescent Current vs. Output
Current (3.3 V Version) (High Load)
Figure 17. Quiescent Current vs. Output
Current (3.3 V Version) (Low Load)
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7
NCV4264−2C
Circuit Description
Calculating Power Dissipation in a Single Output
Linear Regulator
The maximum power dissipation for a single output
regulator (Figure 3) is:
The NCV4264−2C is is a low quiescent current
consumption LDO regulator. Its output stage supplies
100 mA with $2.0% output voltage accuracy.
Maximum dropout voltage is 500 mV at 100 mA load
current. It is internally protected against 45 V input
transients, input supply reversal, output overcurrent faults,
and excess die temperature. No external components are
required to enable these features.
ƪ
ƫ
* I
P
+ V
−V
) V * I
IN(max) q
D(max)
IN(max) OUT(min) OUT(max)
(eq. 1)
Where:
V
V
is the maximum input voltage,
IN(max)
is the minimum output voltage,
OUT(min)
Regulator
I
is the maximum output current for the
OUT(max)
The error amplifier compares the reference voltage to a
application, and I is the quiescent current the regulator
q
sample of the output voltage (V ) and drives the base of
OUT
consumes at I
. Once the value of P
is known,
OUT(max)
D(max)
a PNP series pass transistor by a buffer. The reference is a
bandgap design to give it a temperature−stable output.
Saturation control of the PNP is a function of the load
current and input voltage. Oversaturation of the output
power device is prevented, and quiescent current in the
ground pin is minimized.
the maximum permissible value of R
can be calculated:
JA
q
(
)
150° C * T
A
(eq. 2)
P
qJA
+
P
D
The value of R
can then be compared with those in the
JA
q
package section of the data sheet. Those packages with
’s less than the calculated value in Equation 2 will
R
JA
q
keep the die temperature below 150°C. In some cases, none
of the packages will be sufficient to dissipate the heat
generated by the IC, and an external heat sink will be
required. The current flow and voltages are shown in the
Measurement Circuit Diagram.
Regulator Stability Considerations
The input capacitor C in Figure 2 is necessary for
IN
compensating input line reactance. Possible oscillations
caused by input inductance and input capacitance can be
damped by using a resistor of approximately 1 W in series
with C . The output or compensation capacitor, C
IN
OUT
Heat Sinks
helps determine three main characteristics of a linear
regulator: startup delay, load transient response and loop
stability. Tantalum, aluminum electrolytic, film, or
ceramic capacitors are all acceptable solutions, however,
attention must be paid to ESR constraints. The capacitor
manufacturer’s data sheet usually provides this
A heat sink effectively increases the surface area of the
package to improve the flow of heat away from the IC and
into the surrounding air. Each material in the heat flow path
between the IC and the outside environment will have a
thermal resistance. Like series electrical resistances, these
resistances are summed to determine the value of R
:
JA
q
information. The value for the output capacitor C
OUT
R
qJA
+ R
qJC
) R
qCS
) R
qSA
(eq. 3)
shown in Figure 2 should work for most applications;
however, it is not necessarily the optimized solution.
Where:
Stability is guaranteed at values of C
w 10 mF, with an
OUT
R
R
R
= the junction−to−case thermal resistance,
= the case−to−heat sink thermal resistance, and
= the heat sink−to−ambient thermal resistance.
JC
q
q
q
ESR v 3.5 W for the 5.0 V Version with an ESR v 3.35 W
for the 3.3 V Version within the operating temperature
range. Actual limits are shown in a graph in the Typical
Performance Characteristics section.
CS
SA
R
appears in the package section of the data sheet.
JC
q
Like R , it too is a function of package type. R
and
CS
JA
q
q
R
are functions of the package type, heatsink and the
SA
q
interface between them. These values appear in data sheets
of heatsink manufacturers.
Thermal, mounting, and heat sinking are discussed in the
ON Semiconductor application note AN1040/D, available
on the ON Semiconductor Website.
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8
NCV4264−2C
180
160
140
120
100
80
1 oz
2 oz
60
40
0
100
200
300
400
500
600
700
2
COPPER HEAT SPREADER AREA (mm )
Figure 18. RqJA vs. Copper Spreader Area
1000
100
10
2
Cu Area 100 mm , 1 oz
1
0.1
0.000001 0.00001
0.0001
0.001
0.01
0.1
1
10
100
1000
PULSE TIME (sec)
Figure 19. Single Pulse Heating Curve
ORDERING INFORMATION
Device
Package
Shipping†
NCV4264−2CST50T3G
SOT−223
(Pb−Free)
4000 / Tape & Reel
NCV4264−2CST33T3G
SOT−223
(Pb−Free)
4000 / Tape & Reel
†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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9
NCV4264−2C
PACKAGE DIMENSIONS
SOT−223 (TO−261)
CASE 318E−04
ISSUE N
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCH.
D
b1
MILLIMETERS
INCHES
NOM
0.064
0.002
0.030
0.121
0.012
0.256
0.138
0.091
0.037
−−−
DIM
A
A1
b
b1
c
D
E
e
e1
L
L1
MIN
1.50
0.02
0.60
2.90
0.24
6.30
3.30
2.20
0.85
0.20
1.50
6.70
NOM
1.63
0.06
0.75
3.06
0.29
6.50
3.50
2.30
0.94
−−−
1.75
7.00
−
MAX
1.75
0.10
0.89
3.20
0.35
6.70
3.70
2.40
1.05
−−−
MIN
MAX
0.068
0.004
0.035
0.126
0.014
0.263
0.145
0.094
0.041
−−−
0.060
0.001
0.024
0.115
0.009
0.249
0.130
0.087
0.033
0.008
0.060
0.264
4
2
H
E
E
1
3
b
e1
e
2.00
7.30
0.069
0.276
−
0.078
0.287
H
E
q
C
q
A
0°
10°
0°
10°
0.08 (0003)
A1
L
L1
SOLDERING FOOTPRINT
3.8
0.15
2.0
0.079
6.3
0.248
2.3
0.091
2.3
0.091
2.0
0.079
mm
inches
1.5
0.059
ǒ
Ǔ
SCALE 6:1
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NCV4264−2C/D
相关型号：
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