© Semiconductor Components Industries, LLC, 2010
April, 2010 Rev. 16
1 Publication Order Number:
NCV4275/D
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
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
PbFree Packages are Available
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
+
I
D
Q
GND
RO
Current Limit and
Saturation Sense
Bandgap
Reference
Thermal
Shutdown
Reset
Generator
Figure 1. Block Diagram
Error
Amplifier
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D
2
PAK
5PIN
DS SUFFIX
CASE 936A
1
5
DPAK
5PIN
DT SUFFIX
CASE 175AA
Pin 1. I
2. RO
Tab, 3. GND*
4. D
5. Q
* Tab is connected to
Pin 3 on all packages
ORDERING INFORMATION
1
5
MARKING
DIAGRAMS
1
1
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW = Work Week
G = Lead Free Indicator
4275G
ALYWW
NC
V4275
AWLYWWG
See detailed ordering and shipping information in the
dimensions section on page 12 of this data sheet.
NCV4275
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2
PIN FUNCTION DESCRIPTION
Pin No. Symbol Description
1 I Input; Battery Supply Input Voltage. Bypass to ground with a ceramic capacitor.
2 RO Reset Output; Open Collector Active Reset (accurate when I > 1.0 V).
3 GND Ground; Pin 3 internally connected to tab.
4 D Reset Delay; timing capacitor to GND for Reset Delay function.
5 Q Output; ±2.0%, 450 mA output. 22 F, ESR < 5.0 Ω to ground.
MAXIMUM RATINGS
Rating Symbol Min Max Unit
Input Voltage V
I
42 45 V
Input Peak Transient Voltage V
I
45 V
Output Voltage V
Q
1.0 16 V
Reset Output Voltage V
RO
0.3 25 V
Reset Output Current I
RO
5.0 5.0 mA
Reset Delay Voltage V
D
0.3 7.0 V
Reset Delay Current I
D
2.0 2.0 mA
Input Voltage Operating Range V
I
5.5 42 V
ESD Susceptibility Human Body Model
Machine Model
4.0
200
kV
V
Junction Temperature T
J
40 150 °C
Storage Temperature T
stg
55 150 °C
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 sec150 sec above 217 T
SLD
265 Peak °C
Leaded, 60 sec150 sec above 183 T
SLD
240 Peak °C
THERMAL CHARACTERISTICS
Characteristic Test Conditions (Typical Value) Unit
DPAK 5PIN PACKAGE
Min Pad Board (Note 2) 1 Pad Board (Note 3)
JunctiontoTab (psiJLx,
JLx
) 4.2 4.7 C/W
JunctiontoAmbient (R
JA
,
JA
) 100.9 46.8 C/W
D
2
PAK 5PIN PACKAGE
0.4 sq. in. Spreader Board (Note 4) 1.2 sq. in. Spreader Board (Note 5)
JunctiontoTab (psiJLx,
JLx
) 3.8 4.0 C/W
JunctiontoAmbient (R
JA
,
JA
) 74.8 41.6 C/W
1. PR
R
IPC / JEDEC JSTD020C
2. 1 oz. copper, 0.26 inch
2
(168 mm
2
) copper area, 0.062thick FR4.
3. 1 oz. copper, 1.14 inch
2
(736 mm
2
) copper area, 0.062thick FR4.
4. 1 oz. copper, 0.373 inch
2
(241 mm
2
) copper area, 0.062thick FR4.
5. 1 oz. copper, 1.222 inch
2
(788 mm
2
) copper area, 0.062thick 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.
NCV4275
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3
ELECTRICAL CHARACTERISTICS (V
I
= 13.5 V; 40°C < T
J
< 150°C; unless otherwise noted. Refer to Figure 13 for conditions.)
Characteristic Symbol Test Conditions Min Typ Max Unit
Output
Output Voltage V
Q
100 A < I
Q
< 400 mA, 6.0 V < V
I
< 28 V 4.9 5.0 5.1 V
Output Voltage V
Q
100 A < I
Q
< 200 mA, 6.0 V < V
I
< 40 V 4.9 5.0 5.1 V
Output Current Limitation I
Q
V
Q
= 4.5 V 450 700 mA
Quiescent Current, I
q
= I
I
I
Q
I
q
I
Q
= 1.0 mA 150 200 A
Quiescent Current, I
q
= I
I
I
Q
I
q
I
Q
= 1.0 mA, T
A
= 25°C 135 150 A
Quiescent Current, I
q
= I
I
I
Q
I
q
I
Q
= 250 mA 10 15 mA
Quiescent Current, I
q
= I
I
I
Q
I
q
I
Q
= 400 mA 23 35 mA
Dropout Voltage V
dr
I
Q
= 300 mA, V
dr
= V
I
V
Q
, V
I
= 5.0 V 250 500 mV
Load Regulation ΔV
Q
I
Q
= 5.0 mA to 400 mA 30 15 30 mV
Line Regulation ΔV
Q
ΔV
I
= 8.0 V to 32 V, I
Q
= 5.0 mA 15 5.0 15 mV
Power Supply Ripple Rejection P
SRR
f
r
= 100 Hz, V
r
= 0.5 V
pp
60 dB
Temperature Output Voltage Drift d
VQ/dt
0.5 mV/k
Reset Timing D and Output RO
Reset Switching Threshold V
Q,rt
4.53 4.65 4.8 V
Reset Output Low Voltage V
ROL
R
ext
> 5.0 k, V
Q
> 1.0 V 0.2 0.4 V
Reset Output Leakage Current V
ROH
V
ROH
= 5.0 V 0 10 A
Reset Charging Current I
D,C
V
D
= 1.0 V 3.0 5.5 9.0 A
Upper Timing Threshold V
DU
1.5 1.8 2.2 V
Lower Timing Threshold V
DL
0.2 0.4 0.7 V
Reset Delay Time t
rd
C
D
= 47 nF 10 16 22 ms
Reset Reaction Time t
rr
C
D
= 47 nF 1.5 4.0 s
Thermal Shutdown
Shutdown Temperature (Note 6) T
SD
150 210 °C
6. Guaranteed by design, not tested in production.
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 2. Output Stability with Output
Capacitor ESR
0.01
0.1
1
10
100
1000
OUTPUT CURRENT (mA)
ESR ()
Minimum ESR for
C
Q
= 1 F
Unstable ESR Region for
C
Q
= 1 F
Stable ESR Region
0 100 200 300 400 500
Unstable Region for C
Q
= 1 F
Maximum ESR for
C
Q
= 1 F
Figure 3. Output Capacitor ESR
0
5.0
10
OUTPUT CURRENT (mA)
ESR ()
C
Vout
= 22 F
0 100 200 300 400 500
Unstable Region
Stable Region

NCV4275DS

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
LDO Voltage Regulators 5V 450mA
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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