NCV4275
5.0 V, 450 mA Low-Drop
Voltage Regulator
The NCV4275 is an integrated low dropout regulator designed
for use in harsh automotive environments. It includes wide
operating temperature and input voltage ranges. The output is
regulated at 5.0 V and is rated to 450 mA of output current. It also
provides a number of features, including overcurrent protection,
overtemperature protection and a programmable microprocessor
reset. The NCV4275 is available in the DPAK and D
2
PAK surface
mount packages. The output is stable over a wide output capacitance
and ESR range.
Features
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MARKING
DIAGRAMS
DPAK
5−PIN
DT SUFFIX
CASE 175AA
4275G
ALYWW
•
•
•
•
•
•
•
5.0 V,
±2%
Output Voltage
450 mA Output Current
Very Low Current Consumption
Active Reset Output
Reset Low Down to V
Q
= 1.0 V
500 mV (max) Dropout Voltage
Fault Protection
♦
+45 V Peak Transient Voltage
♦
−42
V Reverse Voltage
♦
Short Circuit
♦
Thermal Overload
•
Pb−Free Packages are Available
•
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
1
5
1
1
5
D
2
PAK
5−PIN
DS SUFFIX
CASE 936A
Pin 1. I
2. RO
Tab, 3. GND*
4. D
5. Q
* Tab is connected to
Pin 3 on all packages
A
WL, L
Y
WW
G
NC
V4275
AWLYWWG
1
I
Error
Amplifier
+
−
Current Limit and
Saturation Sense
Q
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Lead Free Indicator
Bandgap
Reference
Thermal
Shutdown
D
ORDERING INFORMATION
See detailed ordering and shipping information in the
dimensions section on page 12 of this data sheet.
Reset
Generator
GND
RO
Figure 1. Block Diagram
©
Semiconductor Components Industries, LLC, 2010
April, 2010
−
Rev. 16
1
Publication Order Number:
NCV4275/D
NCV4275
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
5
Symbol
I
Description
Input; Battery Supply Input Voltage. Bypass to ground with a ceramic capacitor.
Reset Output; Open Collector Active Reset (accurate when I > 1.0 V).
Ground; Pin 3 internally connected to tab.
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
Ñ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
Ñ
Ñ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
Ñ
ÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
Ñ
Ñ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
Ñ
ÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
ÑÑÑÑÑÑÑÑÑÑ
RO
GND
D
Reset Delay; timing capacitor to GND for Reset Delay function.
Output;
±2.0%,
450 mA output. 22
mF,
ESR < 5.0
Ω
to ground.
Q
MAXIMUM RATINGS†
Input Voltage
Rating
Symbol
V
I
V
I
V
Q
V
RO
I
RO
V
D
I
D
V
I
−
−
T
J
T
stg
Min
Max
45
45
16
25
5.0
7.0
2.0
42
−
−
150
150
Unit
V
V
V
V
mA
V
mA
V
kV
V
°C
°C
−42
−
−1.0
−0.3
−5.0
−0.3
−2.0
5.5
4.0
200
−40
−55
Input Peak Transient Voltage
Output Voltage
Reset Output Voltage
Reset Output Current
Reset Delay Voltage
Reset Delay Current
Input Voltage Operating Range
ESD Susceptibility
−Human
Body Model
−Machine
Model
Junction Temperature
Storage Temperature
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values
(not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage
may occur and reliability may be affected.
LEAD TEMPERATURE SOLDERING REFLOW
(Note 1)
Lead Free, 60 sec−150 sec above 217
Leaded, 60 sec−150 sec above 183
T
SLD
T
SLD
−
−
265 Peak
240 Peak
°C
°C
THERMAL CHARACTERISTICS
Characteristic
DPAK 5−PIN PACKAGE
Min Pad Board (Note 2)
Junction−to−T (psi−JLx,
y
JLx
)
ab
Junction−to−Ambient (R
qJA
,
q
JA
)
D
2
PAK 5−PIN PACKAGE
0.4 sq. in. Spreader Board (Note 4)
Junction−to−T (psi−JLx,
y
JLx
)
ab
Junction−to−Ambient (R
qJA
,
q
JA
)
3.8
74.8
1.2 sq. in. Spreader Board (Note 5)
4.0
41.6
C/W
C/W
4.2
100.9
1″ Pad Board (Note 3)
4.7
46.8
C/W
C/W
Test Conditions (Typical Value)
Unit
1. PR
R
IPC / JEDEC J−STD−020C
2. 1 oz. copper, 0.26 inch
2
(168 mm
2
) copper area, 0.062″ thick FR4.
3. 1 oz. copper, 1.14 inch
2
(736 mm
2
) copper area, 0.062″ thick FR4.
4. 1 oz. copper, 0.373 inch
2
(241 mm
2
) copper area, 0.062″ thick FR4.
5. 1 oz. copper, 1.222 inch
2
(788 mm
2
) copper area, 0.062″ thick FR4.
†During the voltage range which exceeds the maximum tested voltage of I, operation is assured, but not specified. Wider limits may apply. Thermal
dissipation must be observed closely.
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2
NCV4275
ELECTRICAL CHARACTERISTICS
(V
I
= 13.5 V;
−40°C
< T
J
< 150°C; unless otherwise noted. Refer to Figure 13 for conditions.)
Characteristic
Output
Output Voltage
Output Voltage
Output Current Limitation
Quiescent Current, 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
Load Regulation
Line Regulation
Power Supply Ripple Rejection
Temperature Output Voltage Drift
Reset Timing D and Output RO
Reset Switching Threshold
Reset Output Low Voltage
Reset Output Leakage Current
Reset Charging Current
Upper Timing Threshold
Lower Timing Threshold
Reset Delay Time
Reset Reaction Time
Thermal Shutdown
Shutdown Temperature (Note 6)
T
SD
−
150
−
210
°C
6. Guaranteed by design, not tested in production.
V
Q,rt
V
ROL
V
ROH
I
D,C
V
DU
V
DL
t
rd
t
rr
C
D
= 47 nF
C
D
= 47 nF
V
ROH
= 5.0 V
V
D
= 1.0 V
−
−
−
R
ext
> 5.0 k, V
Q
> 1.0 V
4.53
−
−
3.0
1.5
0.2
10
−
4.65
0.2
0
5.5
1.8
0.4
16
1.5
4.8
0.4
10
9.0
2.2
0.7
22
4.0
V
V
mA
mA
V
V
ms
ms
V
Q
V
Q
I
Q
I
q
I
q
I
q
I
q
V
dr
ΔV
Q
ΔV
Q
P
SRR
d
VQ/dt
100
mA
< I
Q
< 400 mA, 6.0 V < V
I
< 28 V
100
mA
< I
Q
< 200 mA, 6.0 V < V
I
< 40 V
V
Q
= 4.5 V
I
Q
= 1.0 mA
I
Q
= 1.0 mA, T
A
= 25°C
I
Q
= 250 mA
I
Q
= 400 mA
I
Q
= 300 mA, V
dr
= V
I
−
V
Q
, V
I
= 5.0 V
I
Q
= 5.0 mA to 400 mA
ΔV
I
= 8.0 V to 32 V, I
Q
= 5.0 mA
f
r
= 100 Hz, V
r
= 0.5 V
pp
−
4.9
4.9
450
−
−
−
−
−
−30
−15
−
−
5.0
5.0
700
150
135
10
23
250
15
5.0
60
0.5
5.1
5.1
−
200
150
15
35
500
30
15
−
−
V
V
mA
mA
mA
mA
mA
mV
mV
mV
dB
mV/k
Symbol
Test Conditions
Min
Typ
Max
Unit
TYPICAL PERFORMANCE CHARACTERISTICS
1000
100
10
1
0.1
0.01
Unstable Region for C
Q
= 1
mF
0
100
200
300
400
500
OUTPUT CURRENT (mA)
Stable ESR Region
Minimum ESR for
C
Q
= 1
mF
Unstable ESR Region for
C
Q
= 1
mF
Maximum ESR for
C
Q
= 1
mF
10
Unstable Region
ESR (W)
ESR (W)
5.0
Stable Region
C
Vout
= 22
mF
0
0
100
200
300
400
500
OUTPUT CURRENT (mA)
Figure 2. Output Stability with Output
Capacitor ESR
Figure 3. Output Capacitor ESR
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3
NCV4275
5.2
5.1
5.0
V
Q
(V)
V
Q
(V)
4.9
4.8
4.7
4.6
−40
V
I
= 13.5 V, R
L
= 25
W
12
10
8.0
6.0
4.0
2.0
0
R
L
= 25
W,
T
J
= 25°C
0
40
T
j
(°C)
80
120
160
0
2.0
4.0
V
I
(V)
6.0
8.0
10
Figure 4. Output Voltage V
Q
vs. Temperature T
j
Figure 5. Output Voltage V
Q
vs. Input Voltage V
I
1200
1000
800
I
Q
(mA)
I
Q
(A)
600
400
200
0
−40
V
I
= 13.5 V
1.2
1.0
0.8
T
J
= 125°C
0.6
0.4
0.2
0
T
J
= 25°C
0
40
T
j
(°C)
80
120
160
0
10
20
V
I
(V)
30
40
50
Figure 6. Output Current I
Q
vs. Temperature T
J
Figure 7. Output Current I
Q
vs. Input Voltage V
I
3.5
3.0
2.5
I
q
(mA)
2.0
1.5
1.0
0.5
0
V
I
= 13.5 V, T
J
= 25°C
V
dr
(mV)
800
700
600
500
400
300
200
100
0
20
40
60
I
Q
(mA)
80
100
0
120
0
200
400
600
I
Q
(mA)
800
1000
T
J
= 25°C
T
J
= 125°C
Figure 8. Current Consumption I
q
vs.
Output Current I
Q
Figure 9. Drop Voltage V
dr
vs. Output Current I
Q
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4
NCV4275
80
70
60
V
I
= 13.5 V, T
J
= 25°C
I
D,C
(mA)
50
I
q
(mA)
40
30
20
10
0
0
100
200
300
I
Q
(mA)
400
500
600
8
7
6
5
4
3
2
1
0
−40
0
40
T
j
(°C)
80
120
160
V
I
= 13.5 V
V
D
= 1.0 V
Figure 10. Current Consumption I
q
vs.
Output Current I
Q
Figure 11. Charge Current I
D,C
vs. Temperature T
J
4.0
3.5
3.0
V
DU
, V
DL
(V)
2.5
2.0
1.5
1.0
0.5
0
−40
0
40
T
j
(°C)
80
120
160
V
DL
V
DU
V
I
= 13.5 V
Figure 12. Delay Switching Threshold V
DU
, V
DL
vs.
Temperature T
J
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