NCV4264ST50T3G [ONSEMI]
150 mA Low Dropout Linear Regulator; 150毫安低压差线性稳压器
| 型号： | NCV4264ST50T3G |
| 厂家： | 
ONSEMI |
| 描述： | 150 mA Low Dropout Linear Regulator |
| 文件： | 总8页 (文件大小：116K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NCV4264
150 mA Low Dropout
Linear Regulator
The NCV4264 is a wide input range, precision fixed output, low
dropout integrated voltage regulator with a full load current rating of
150 mA.
The output voltage is accurate within "2.0%, and maximum
dropout voltage is 500 mV at 100 mA load current.
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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.
MARKING
DIAGRAM
TAB
SOT−223
ST SUFFIX
CASE 318E
Features
AYW
V64_5x G
1
• 5.0 V Fixed Output
• "2.0% Output Accuracy, Over Full Temperature Range
• Quiescent Current 400 mA at I
2
3
1
A
Y
= Assembly Location
= Year
= 1.0 mA
OUT
W
= Work Week
• 500 mV Maximum Dropout Voltage at 100 mA Load Current
• Wide Input Voltage Operating Range of 5.5 V to 45 V
V64_5x = Specific Device Code
x
G
= 5 (5.0 V)
= Pb−Free Package
• Internal Fault Protection
♦ −42 V Reverse Voltage
♦ Short Circuit/Overcurrent
♦ Thermal Overload
• NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
PIN CONNECTIONS
GND
• AEC−Q100 Qualified
• This is a Pb−Free Device
1
V
IN
GND V
OUT
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
©
Semiconductor Components Industries, LLC, 2006
1
Publication Order Number:
December, 2006 − Rev. P0
NCV4264/D
NCV4264
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; 5.5 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
MAXIMUM RATINGS
Rating
Symbol
Min
Max
Unit
V
IN
−42
+45
V
V , DC Input Voltage
IN
V
, DC Voltage
V
−0.3
−55
+16
V
_C
−
OUT
OUT
Storage Temperature
T
+150
stg
Moisture Sensitivity Level
MSL
1
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 Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
RecommendedOperating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
OPERATING RANGE
Pin Symbol, Parameter
Symbol
Min
5.5
Max
+45
Unit
V
V
IN
V , DC Input Operating Voltage
IN
Junction Temperature Operating Range
T
−40
+150
_C
J
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.
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2
NCV4264
THERMAL RESISTANCE
Parameter
Symbol
Condition
Min
−
Max
99 (Note 3)
17
Unit
Junction−to−Ambient
Junction−to−Case
SOT−223
SOT−223
R
q
JA
°C/W
R
q
JC
−
ELECTRICAL CHARACTERISTICS (V = 13.5 V, Tj = −40_C to +150_C, unless otherwise noted.)
IN
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Output Voltage
V
OUT
4.900
5.000
5.100
V
5.0 mA v I v 100 mA (Note 4)
OUT
6.0 V v V v 28 V
IN
Line Regulation
DV
vs. V
I = 5.0 mA
OUT
−30
5.0
+30
mV
OUT
IN
6.0 V v V v 28 V
IN
Load Regulation
DV
vs. I
5.0 mA v I
v 100 mA (Note 4)
−40
−
5.0
275
83
+40
500
400
15
mV
mV
mA
OUT
OUT
OUT
Dropout Voltage
V
−V
IN OUT
I
= 100 mA (Notes 4 & 5)
OUT
Quiescent Current
I
q
I
= 1.0 mA
−
OUT
Active Ground Current
Power Supply Rejection
Output Capacitor for Stability
I
I
= 50 mA (Note 4)
−
1.5
67
mA
dB
G(ON)
OUT
PSRR
V
= 0.5 V , F = 100 Hz
−
−
RIPPLE
P−P
C
I
= 1.0 mA to 100 mA
(Notes 4)
10
−
mF
W
OUT
ESR
OUT
9.0
PROTECTION
Current Limit
I
V
= 4.5 V (Note 4)
150
40
−
−
−
500
500
200
mA
mA
_C
OUT(LIM)
OUT
Short Circuit Current Limit
I
V
= 0 V (Note 4)
(Note 6)
OUT(SC)
OUT
Thermal Shutdown Threshold
T
TSD
150
2
3. 1 oz., 100 mm copper area.
4. Use pulse loading to limit power dissipation.
5. 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.
6. Not tested in production. Limits are guaranteed by design.
I
I
Q
Output
V
in
V
out
5.5−45 V
I
4264
2
1
3
Input
C
C
OUT
10 mF
I1
R
L
100 nF
100 mF
GND
Figure 2. Measurement Circuit
5.5−45 V
Input
V
in
V
out
4264
2
1
3
5.0 V Output
C
C
OUT
10 mF
in
100 nF
GND
Figure 3. Applications Circuit
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3
NCV4264
TYPICAL CHARACTERISTIC CURVES
1000
100
0.45
0.40
125°C
Maximum ESR
0.35
C
out
= 10, 22 mF
25°C
0.30
0.25
0.20
0.15
0.10
10
1
−40°C
0.1
0.05
0
Stable Region
20 40
V = 13.5 V
in
0.01
0
60
80
100 120 140 160 180
0
50
100
150
200
LOAD CURRENT (mA)
OUTPUT LOAD (mA)
Figure 4. ESR Characterization
Figure 5. Dropout Voltage vs. Output Load
14
12
18
16
125°C
25°C
14
10
8.0
6.0
4.0
12
−40°C
10
8.0
6.0
4.0
R = 50 W
L
2.0
0
R = 100 W
L
2.0
0
0
50
100
150
200
0
10
20
30
40
50
OUTPUT CURRENT (mA)
CURRENT CONSUMPTION (mA)
Figure 6. Current Consumption vs. Input
Voltage
Figure 7. Current Consumption vs. Output
Current
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
450
400
350
300
250
200
150
100
125°C
25°C
−40°C
50
0
4.92
4.90
−50
0
50
100
150
0
5.0
10
15
20
TEMPERATURE (°C)
OUTPUT LOAD (mA)
Figure 9. Output Voltage vs. Temperature
Figure 8. Quiescent Current vs. Output Load
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4
NCV4264
6.0
5.0
4.0
3.0
2.0
1.0
180
160
140
120
100
80
T = 25°C
A
60
40
T = 125°C
A
20
0
R = 50 W
L
0
0
2.0
4.0
6.0
8.0
10
0
10
20
30
40
50
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
Figure 11. Input Voltage vs. Output Voltage
Figure 10. Output Current vs. Input Voltage
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5
NCV4264
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 is a precision trimmed 5.0 V fixed output
regulator. The device has current capability of 150 mA,
with 500 mV of dropout voltage at 100 mA of current. The
regulation is provided by a PNP pass transistor controlled
by an error amplifier with a bandgap reference. The
regulator is protected by both current limit and short circuit
protection. Thermal shutdown occurs above 150°C to
protect the IC during overloads and extreme ambient
temperatures.
P
+ [V
IN(max)
* V ] @
OUT(min)
I(max) q
D(max)
(eq. 1)
I
) V @ I
Q(max)
Where:
V
V
is the maximum input voltage,
IN(max)
is the minimum output voltage,
OUT(min)
I
is the maximum output current for the
Q(max)
Regulator
application, and I is the quiescent current the regulator
q
The error amplifier compares the reference voltage to a
consumes at I
.
Q(max)
sample of the output voltage (V ) and drives the base of
Once the value of P
is known, the maximum
out
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. Over saturation of the output
power device is prevented, and quiescent current in the
ground pin is minimized.
permissible value of R
can be calculated:
JA
q
150oC * T
A
P
qJA
+
(eq. 2)
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
R
’s less than the calculated value in Equation 2 will keep
JA
q
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
IN1
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
IN2
OUT
Heat Sinks
helps determine three main characteristics of a linear
regulator: startup delay, load transient response and loop
stability. The capacitor value and type should be based on
cost, availability, size and temperature constraints. A
tantalum or aluminum electrolytic capacitor is best, since
a film or ceramic capacitor with almost zero ESR can cause
instability. The aluminum electrolytic capacitor is the least
expensive solution, but, if the circuit operates at low
temperatures (−25°C to −40°C), both the value and ESR of
the capacitor will vary considerably. 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
R
qJA
+ R
qJC
) R
qCS
) R
qSA
(eq. 3)
Where:
R
R
R
R
= the junction−to−case thermal resistance,
JC
CS
SA
JA
q
q
q
q
= the case−to−heat sink thermal resistance, and
= the heat sink−to−ambient thermal resistance.
appears in the package section of the data sheet.
information. The value for the output capacitor C
OUT
shown in Figure 2 should work for most applications;
however, it is not necessarily the optimized solution.
Stability is guaranteed at values CQ = 10 mF and an ESR
= 9W within the operating temperature range. Actual limits
are shown in a graph in the Typical Performance
Characteristics section.
Like R , it too is a function of package type. R
and
JA
CS
q
q
R
are functions of the package type, heat sink and the
SA
q
interface between them. These values appear in data sheets
of heat sink 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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6
NCV4264
120
100
SOT223
80
60
40
20
0
0
100
200
300
400
500
600
700
2
COPPER AREA (mm )
Figure 12.
100
10
SOT223
1.0
0.1
0.000001 0.00001
0.0001
0.001
0.01
0.1
1.0
10
100
1000
PULSE TIME (sec)
Figure 13.
ORDERING INFORMATION
Device
Marking
V64_5
Package
Shipping†
NCV4264ST50T3G
SOT−223
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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7
NCV4264
PACKAGE DIMENSIONS
SOT−223 (TO−261)
ST SUFFIX
CASE 318E−04
ISSUE L
NOTES:
D
b1
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
MILLIMETERS
INCHES
NOM
0.064
0.002
0.030
0.121
0.012
0.256
0.138
0.091
0.037
0.069
0.276
−
4
2
DIM
A
A1
b
b1
c
D
E
e
e1
L1
MIN
1.50
0.02
0.60
2.90
0.24
6.30
3.30
2.20
0.85
1.50
6.70
0°
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
2.00
7.30
10°
MIN
0.060
0.001
0.024
0.115
0.009
0.249
0.130
0.087
0.033
0.060
0.264
0°
MAX
0.068
0.004
0.035
0.126
0.014
0.263
0.145
0.094
0.041
0.078
0.287
10°
H
E
E
1
3
b
e1
e
H
E
C
q
q
A
0.08 (0003)
A1
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
1.5
0.059
ǒinches
Ǔ
SCALE 6:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
MountingTechniques Reference Manual, SOLDERRM/D.
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
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NCV4264/D
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