NCV4276C
400 mA Low-Drop Voltage
Regulator
The NCV4276C is a 400 mA output current integrated low dropout
regulator family designed for use in harsh automotive environments.
It includes wide operating temperature and input voltage ranges. The
device is offered with 3.3 V, 5.0 V, and adjustable voltage versions
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
inhibit for control of the state of the output voltage. The NCV4276C
family is available in DPAK and D
2
PAK surface mount packages.
The output is stable over a wide output capacitance and ESR range.
The NCV4276C has improved startup behavior during input voltage
transients.
The NCV4276C is pin for pin compatible with NCV4276B.
Features
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MARKING
DIAGRAMS
DPAK
5−PIN
DT SUFFIX
CASE 175AA
1
76CXXG
ALYWW
1
5
•
3.3 V, 5.0 V, and Adjustable Voltage Version (from 2.5 V to 20 V)
•
•
•
•
•
±2%
Output Voltage
400 mA Output Current
500 mV (max) Dropout Voltage (5.0 V Output)
Inhibit Input
Very Low Current Consumption
Fault Protection
♦
+45 V Peak Transient Voltage
♦
−42 V Reverse Voltage
♦
Short Circuit
♦
Thermal Overload
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable
These are Pb−Free Devices
1
5
D
2
PAK
5−PIN
DS SUFFIX
CASE 936A
1
NC
V4276C−XX
AWLYWWG
*Tab is connected to Pin 3 on all packages.
A
WL, L
Y
WW
G
XX
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Device
= 33 (3.3 V)
= 50 (5.0 V)
= AJ (Adj. Voltage)
•
•
ORDERING INFORMATION
See detailed ordering and shipping information in the ordering
information section on page 14 of this data sheet.
©
Semiconductor Components Industries, LLC, 2014
1
August, 2018 − Rev. 1
Publication Order Number:
NCV4276C/D
NCV4276C
I
Error
Amplifier
−
+
Current Limit and
Saturation Sense
Q
Bandgap
Reference
Thermal
Shutdown
INH
GND
NC
Figure 1. NCV4276C Block Diagram
I
Error
Amplifier
−
+
Current Limit and
Saturation Sense
Q
Bandgap
Reference
Thermal
Shutdown
INH
GND
VA
Figure 2. NCV4276C Adjustable Block Diagram
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
Symbol
I
INH
GND
NC / VA
Q
Input; Battery Supply Input Voltage.
Inhibit; Set low−to inhibit.
Ground; Pin 3 internally connected to heatsink.
Not connected for fixed voltage version / Voltage Adjust Input for adjustable voltage version; use an external
voltage divider to set the output voltage
Output: Bypass with a capacitor to GND. See Figures 3 to 8 and Regulator Stability Considerations section.
Description
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2
NCV4276C
MAXIMUM RATINGS
Rating
Input Voltage
Input Peak Transient Voltage
Inhibit INH Voltage
Voltage Adjust Input VA
Output Voltage
Ground Current
Input Voltage Operating Range (Note 1)
ESD Susceptibility
(Human Body Model)
(Machine Model)
(Charged Device Model)
Symbol
V
I
V
I
V
INH
V
VA
V
Q
I
q
V
I
−
−
−
T
J
T
stg
Min
−42
−
−42
−0.3
−1.0
−
V
Q
+ 0.5 V or 4.5 V
(Note 2)
4.0
250
1.25
−40
−50
Max
45
45
45
10
40
100
40
−
−
−
150
150
Unit
V
V
V
V
V
mA
V
kV
V
kV
°C
°C
Junction Temperature
Storage Temperature
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. Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
2. Minimum V
I
= 4.5 V or (V
Q
+ 0.5 V), whichever is higher.
LEAD TEMPERATURE SOLDERING REFLOW
(Note 3)
Lead Temperature Soldering
Reflow (SMD styles only), Leaded, 60−150 s above 183, 30 s max at peak
Reflow (SMD styles only), Lead Free, 60−150 s above 217, 40 s max at peak
Wave Solder (through hole styles only), 12 sec max
3. Per IPC / JEDEC J−STD−020C.
T
SLD
−
−
−
240
265
310
°C
THERMAL CHARACTERISTICS
Characteristic
DPAK 5−PIN PACKAGE
Min Pad Board
(Note 4)
Junction−to−Tab (psi−JLx,
y
JLx
)
Junction−to−Ambient (R
qJA
,
q
JA
)
D
2
PAK 5−PIN PACKAGE
0.4 sq. in. Spreader Board
(Note 6)
Junction−to−Tab (psi−JLx,
y
JLx
)
Junction−to−Ambient (R
qJA
,
q
JA
)
4.
5.
6.
7.
5.4
54.2
1.2 sq. in. Spreader Board
(Note 7)
5.4
43.3
C/W
C/W
3.8
75.1
1, Pad Board
(Note 5)
4.3
58.5
C/W
C/W
Test Conditions (Typical Value)
Unit
1 oz. copper, 0.26 inch
2
(168 mm
2
) copper area, 0.062″ thick FR4.
1 oz. copper, 1.14 inch
2
(736 mm
2
) copper area, 0.062″ thick FR4.
1 oz. copper, 0.373 inch
2
(241 mm
2
) copper area, 0.062″ thick FR4.
1 oz. copper, 1.222 inch
2
(788 mm
2
) copper area, 0.062″ thick FR4.
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3
NCV4276C
ELECTRICAL CHARACTERISTICS
(V
I
= 13.5 V; −40°C < T
J
< 150°C; unless otherwise noted.)
Characteristic
OUTPUT
Output Voltage, 5.0 V Version
Output Voltage, 5.0 V Version
Output Voltage, 3.3 V Version
Output Voltage, 3.3 V Version
Output Voltage, Adjustable Version
V
Q
V
Q
V
Q
V
Q
AV
Q
5.0 mA < I
Q
< 400 mA,
6.0 V < V
I
< 28 V
5.0 mA < I
Q
< 200 mA,
6.0 V < V
I
< 40 V
5.0 mA < I
Q
< 400 mA,
4.5 V < V
I
< 28 V
5.0 mA < I
Q
< 200 mA,
4.5 V < V
I
< 40 V
5.0 mA < I
Q
< 400 mA
V
Q
+1 < V
I
< 40 V
V
I
> 4.5 V
V
Q
= 90% V
QTYP
(V
QTYP
= 2.5 V for ADJ version)
V
INH
= 0 V
I
Q
= 1.0 mA
I
Q
= 250 mA
I
Q
= 400 mA
I
Q
= 250 mA,
V
DR
= V
I
− V
Q
V
I
> 4.5 V
I
Q
= 250 mA (Note 8)
I
Q
= 5.0 mA to 400 mA
DV
I
= 12 V to 32 V,
I
Q
= 5.0 mA
f
r
= 100 Hz, V
r
= 0.5 V
PP
V
Q
w
V
QMIN
V
Q
v
0.1 V
V
INH
= 5.0 V
4.9
4.9
3.234
3.234
−2%
5.0
5.0
3.3
3.3
−
5.1
5.1
3.366
3.366
+2%
V
V
V
V
V
Symbol
Test Conditions
Min
Typ
Max
Unit
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,
Adjustable Version
Dropout Voltage (5.0 V Version)
Load Regulation
Line Regulation
Power Supply Ripple Rejection
INHIBIT
Inhibit Voltage, Output High
Inhibit Voltage, Output Low (Off)
Input Current
THERMAL SHUTDOWN
Thermal Shutdown Temperature (Note 9)
I
Q
I
q
I
q
I
q
I
q
V
DR
400
−
−
−
−
600
−
95
5
10
1100
10
200
15
35
mA
mA
mA
mA
mA
−
−
−
−
−
250
250
3.0
4.0
70
500
500
20
15
−
mV
mV
mV
mV
dB
V
DR
DV
Q,LO
DV
Q
PSRR
V
INH
V
INH
I
INH
−
1.8
5.0
2.3
2.2
10
2.8
−
20
V
V
mA
°C
T
SD
I
Q
= 5.0 mA
150
−
210
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.
8. Measured when the output voltage V
Q
has dropped 100 mV from the nominal valued obtained at V = 13.5 V.
9. Guaranteed by design, not tested in production.
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4
NCV4276C
I
I
5.5 − 45 V
Input
C
I1
1.0
mF
C
I2
100 nF
INH
I
INH
2
I 1
NCV4276C
4
GND
NC
5 Q
C
Q
22
mF
R
L
I
Q
Output
3
Figure 3. Applications Circuit; Fixed Voltage Version
V
Q
= [(R1 + R2) * V
ref
] / R2
I
I
Input
C
I1
1.0
mF
C
I2
100 nF
INH
I
INH
2
I 1
NCV4276C
4
GND
VA
R
2
5 Q
I
Q
C
Q
22
mF
C
b
*
R
1
R
L
Output
3
C
b
* − Required if usage of low ESR output capacitor C
Q
is demand, see Regulator Stability Considerations section
Figure 4. Applications Circuit; Adjustable Voltage Version
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