NCV4266-2C
150 mA Low I
q
,
Low-Dropout Voltage
Regulator with Enable
The NCV4266−2C is a 150 mA output current integrated low
dropout, low quiescent current regulator family designed for use in
harsh automotive environments. It includes wide operating
temperature and input voltage ranges. The device is offered with
fixed voltage versions of 3.3 V and 5.0 V available in 2% output
voltage accuracy. It has a high peak input voltage tolerance and
reverse input voltage protection. It also provides overcurrent
protection, overtemperature protection and enable function for
control of the state of the output voltage. The NCV4266−2C is
available in SOT−223 surface mount package. The output is stable
over a wide output capacitance and ESR range. The NCV4266−2C
has improved startup behavior during input voltage transients.
Features
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MARKING
DIAGRAM
SOT−223
(TO−261)
ST SUFFIX
CASE 318E
1
A
Y
W
x
= Assembly Location
= Year
= Work Week
= Voltage Option
3.3 V (x = 3)
5.0 V (x = 5)
= Pb−Free Package
AYW
662CxG
G
•
•
•
•
•
•
•
Output Voltage Options: 3.3 V, 5.0 V
Output Voltage Accuracy:
±2.0%
Output Current: up to 150 mA
Low Quiescent Current (typ. 40
mA
@ 100
mA)
Low Dropout Voltage (typ. 250 mV @ 100 mA)
Enable Input
Fault Protection
♦
+45 V Peak Transient Voltage
♦
−42 V Reverse Voltage
♦
Short Circuit
♦
Thermal Overload
•
AEC−Q100 Grade 1 Qualified and PPAP Capable
•
These are Pb−Free Devices
I
Error
Amplifier
−
+
Current Limit and
Saturation Sense
Q
G
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 10 of this data sheet.
Bandgap
Reference
Thermal
Shutdown
EN
GND
Figure 1. Block Diagram
©
Semiconductor Components Industries, LLC, 2015
1
June, 2018 − Rev. 2
Publication Order Number:
NCV4266−2C/D
NCV4266−2C
PIN FUNCTION DESCRIPTION
Pin No.
DFN8
1
3
4
8
Pin No.
Symbol
1
2
3
4
I
EN
Q
GND
Input; Battery Supply Input Voltage.
Enable Input; Low level disables the IC.
Output; Bypass with a capacitor to GND.
Ground.
Description
MAXIMUM RATINGS
Rating
Input Voltage
Input Peak Transient Voltage
Enable Input Voltage
Output Voltage
Ground Current
Input Voltage Operating Range
ESD Susceptibility
Junction Temperature
Storage Temperature
(Human Body Model)
Symbol
V
I
V
I
V
EN
V
Q
I
q
V
I
−
T
J
T
stg
Min
−42
−
−42
−0.3
−
V
Q
+ 0.5 V or
4.5 (Note 1)
3.0
−40
−50
Max
45
45
45
32
100
45
−
150
150
Unit
V
V
V
V
mA
V
kV
°C
°C
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. Minimum V
I
= 4.5 V or (V
Q
+ 0.5 V), whichever is higher.
LEAD TEMPERATURE SOLDERING REFLOW AND MSL
(Note 2)
Rating
Lead Temperature Soldering
Reflow (SMD styles only), Leaded, 60−150 s above 183, 30 s max at peak
Reflow (SMD styles only), Free, 60−150 s above 217, 40 s max at peak
Wave Solder (through hole styles only), 12 sec max
Moisture Sensitivity Level
2. Per IPC / JEDEC J−STD−020C.
Symbol
T
SLD
−
−
−
MSL
3
240
265
310
−
Min
Max
Unit
°C
THERMAL RESISTANCE
Parameter
Junction−to−Ambient
Junction−to−Tab
SOT−223
SOT−223
Symbol
R
qJA
Ry
JT
Condition
Min
−
−
Max
109 (Note 3)
10.9
Unit
°C/W
°C/W
3. 1 oz copper, 100 mm
2
copper area, FR4.
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NCV4266−2C
ELECTRICAL CHARACTERISTICS
(−40°C < T
J
< 150°C, V
I
= 13.5 V, V
EN
= 5 V; unless otherwise noted.)
Characteristic
OUTPUT
Output Voltage (5.0 V Version)
Output Voltage (3.3 V Version)
Output Current Limitation
Quiescent Current (Sleep Mode)
I
q
= I
I
− I
Q
Quiescent Current, I
q
= I
I
− I
Q
Quiescent Current, I
q
= I
I
− I
Q
Quiescent Current, I
q
= I
I
− I
Q
Dropout Voltage (5.0 V Version)
Load Regulation (5.0 V Version)
Load Regulation (3.3 V Version)
Line Regulation (5.0 V Version)
Line Regulation (3.3 V Version)
Power Supply Ripple Rejection
ENABLE INPUT
Enable Voltage, Output High
Enable Voltage, Output Low (Off)
Enable Input Current
THERMAL SHUTDOWN
Thermal Shutdown Temperature*
T
SD
150
−
200
°C
V
EN
V
EN
I
EN
V
Q
w
V
QMIN
V
Q
v
0.1 V
V
EN
= 5.0 V
−
0.8
−
2.0
1.8
4.0
2.7
−
8.0
V
V
mA
V
Q
V
Q
I
Q
I
q
I
q
I
q
I
q
V
DR
DV
Q,LO
DV
Q,LO
DV
Q
DV
Q
PSRR
100
mA
< I
Q
< 150 mA, 6.0 V < V
I
< 28 V
100
mA
< I
Q
< 150 mA, 4.5 V < V
I
< 28 V
V
Q
= 90% V
QTYP
V
EN
= 0 V, T
J
= −40°C to 100°C
I
Q
= 100
mA,
T
J
< 85°C
I
Q
= 100
mA
I
Q
= 50 mA
I
Q
= 100 mA, V
DR
= V
I
− V
Q
(Note 4)
I
Q
= 1.0 mA to 100 mA
I
Q
= 1.0 mA to 100 mA
DV
I
= 6.0 V to 28 V, I
Q
= 1.0 mA
DV
I
= 4.5 V to 28 V, I
Q
= 1.0 mA
f
r
= 100 Hz, V
r
= 0.5 V
PP
4.9
3.234
150
−
−
−
−
−
−
−
−
−
−
5.0
3.3
390
0
40
40
0.55
230
3.5
0.5
1.0
0.5
68
5.1
3.366
500
1.0
60
70
4.0
500
90
60
30
20
−
V
V
mA
mA
mA
mA
mA
mV
mV
mV
mV
mV
dB
Symbol
Test Conditions
Min
Typ
Max
Unit
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
*Guaranteed by design, not tested in production.
4. Measured when the output voltage V
Q
has dropped 100 mV from the nominal value obtained at V = 13.5 V.
I
I
Input
C
I1
1.0
mF
C
I2
100 nF
EN
I
EN
2
I 1
NCV4266−2C
3 Q
C
Q
3.3
mF
R
L
GND
I
Q
Output
4
Figure 2. Applications Circuit
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NCV4266−2C
TYPICAL CHARACTERISTICS CURVES − 5 V Version
100
Unstable Region
10
ESR (W)
5.10
V
I
= 13.5 V
R
L
= 1 kW
5.05
1
Stable Region
0.1
C
Q
= 3.3
mF
V
Q
, OUTPUT VOLTAGE (V)
100
125
150
5.00
4.95
0.01
0
25
50
75
4.90
−40
0
40
80
120
160
I
Q
, OUTPUT CURRENT (mA)
T
J
, JUNCTION TEMPERATURE (°C)
Figure 3. Output Stability with Output Capacitor ESR
6
V
Q
, OUTPUT VOLTAGE (V)
I
I
, INPUT CURRENT (mA)
5
4
3
2
1
0
0
1
2
3
4
5
6
7
8
9
10
V
I
, INPUT VOLTAGE (V)
R
L
= 33
W
T
J
= 25°C
Figure 4. Output Voltage vs. Junction Temperature
1.0
0.6
0.2
−0.2
R
L
= 6.8 kW
T
J
= 25°C
−0.6
−1.0
−50 −40 −30 −20 −10
0
10
20
30
40
50
V
I
, INPUT VOLTAGE (V)
Figure 5. Output Voltage vs. Input Voltage
Figure 6. Input Current vs. Input Voltage
350
V
DR
, DROPOUT VOLTAGE (mV)
I
Q
, OUTPUT CURRENT (mA)
300
250
200
150
100
50
0
0
5
10
15
20
25
30
V
I
, INPUT VOLTAGE (V)
35
40
45
V
Q
= 0 V
T
J
= 25°C
450
400
350
300
250
200
150
100
50
0
0
25
50
75
100
I
Q
, OUTPUT CURRENT (mA)
125
150
T
J
= 25°C
T
J
= 125°C
Figure 7. Maximum Output Current vs. Input
Voltage
Figure 8. Dropout Voltage vs. Output Current
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NCV4266−2C
TYPICAL CHARACTERISTICS CURVES − 5 V Version
3.5
I
q
, QUIESCENT CURRENT (mA)
3.0
2.5
2.0
1.5
1.0
0.5
0
0
25
50
75
100
I
Q
, OUTPUT CURRENT (mA)
125
150
V
I
= 13.5 V
T
J
= 25°C
I
q
, QUIESCENT CURRENT (mA)
0.25
V
I
= 13.5 V
T
J
= 25°C
0.20
0.15
0.10
0.05
0
0
2
4
10 12 14 16
6
8
I
Q
, OUTPUT CURRENT (mA)
18
20
Figure 9. Quiescent Current vs. Output Current
(High Load)
6
I
q
, QUIESCENT CURRENT (mA)
5
4
3
2
1
0
0
5
10
15
20
25
Figure 10. Quiescent Current vs. Output
Current (Low Load)
T
J
= 25°C
R
L
= 33
W
30
35
40
V
I
, INPUT VOLTAGE (V)
Figure 11. Quiescent Current vs. Input Voltage
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