NCV4263-2C
200 mA LDO Regulator with
Enable, Reset & Watchdog
The NCV4263−2C is a 200 mA LDO regulator with integrated reset
watchdog functions dedicated for microprocessor applications. Its
robustness allows NCV4263−2C to be used in severe automotive
environments. The Enable function can be used for decrease of
quiescent current down to max 10
mA.
The NCV4263−2C contains
protection functions as current limit, thermal shutdown and reverse
output current protection. The regulator provides also Watchdog,
Reset function with adjustable Threshold and adjustable Power−on
Reset Delay Time.
Features
8
1
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MARKING
DIAGRAMS
8
SOIC−8 EP
PD SUFFIX
CASE 751AC
1
14
14
1
SOIC−14
D SUFFIX
CASE 751A
1
A
L, WL
Y
W, WW
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
NCV4263−2C50G
AWLYWWG
V632C5
ALYWX
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Output Voltage Option: 5 V
Output Voltage Accuracy:
±2%
Output Current up to 200 mA
Very Low Dropout Voltage
Enable Function (10
mA
Max Quiescent Current when Disabled)
Microprocessor Compatible Control Functions:
− Reset with Adjustable Threshold and Adjustable Power−on Delay
− Watchdog Function
Wide Input Voltage Operation Range: up to 40 V
Protection Features:
− Current Limitation
− Thermal Shutdown
− Reverse Output Current
AEC−Q100 Grade 1 Qualified and PPAP Capable
These are Pb−Free Devices
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 12 of
this data sheet.
Typical Applications
Body Control Module
Instruments and Clusters
Occupant Protection and Comfort
Powertrain
V
in
V
out
C
out
22
mF
R
RO
*
5.6 kW
RESET
I/O
C
D
100 nF
V
DD
Microprocessor
V
in
C
in
100 nF NCV4263−2C
RADJ
OFF
ON
EN
GND
RO
WDI
D
*−optional if Reset function is needed
Figure 1. Application Schematic
©
Semiconductor Components Industries, LLC, 2015
1
March, 2015 − Rev. 1
Publication Order Number:
NCV4263−2C/D
NCV4263−2C
V
in
VOLTAGE
REFERENCE
V
REF
SP
EN
ENABLE
SATURATION
PROTECTION
THERMAL
SHUTDOWN
GND
V
REF
TSD
TSD
RESET
GENERATOR
and
WATCHDOG
D
RADJ
RO
WDI
V
out
SP
Figure 2. Simplified Block Diagram
1
RO
1
Vin
EN
RO
GND
SOIC−8 EP
8
Vout
WDI
RADJ
D
NC
GND
GND
GND
D
RADJ
SOIC−14
14
EN
Vin
GND
GND
GND
Vout
WDI
Figure 3. Pin Connections
(Top View)
PIN FUNCTION DESCRIPTION
Pin No.
SO−8 EP
1
2
3
4
5
6
7
8
EPAD
−
Pin No.
SO−14
13
14
1
3, 4, 5,
10, 11, 12
6
7
8
9
−
2
Pin Name
V
in
EN
RO
GND
D
RADJ
WDI
V
out
Exposed
Pad
NC
Description
Positive Power Supply. Connect ceramic capacitor to ground.
Enable Input. Low level disables the chip. Connect to V
in
if this function is not needed.
Reset Output; Open Collector connected to the V
out
via an internal 30 kW pull−up resistor;
leave open if the function is not needed
Power Supply Ground. Connect pins to heat sink area with GND potential.
DelayTiming. Connect to GND via ceramic capacitor for adjusting reset delay timing and
watchdog trigger time or leave open if this function is not needed.
Reset Adjust Threshold. Connect to GND (V
RT
= 93% of V
out
) or to output voltage divider to
adjust the reset threshold.
Watchdog Input. Rising edge triggered Input for watchdog pulses. Connect to GND if this
function is not needed.
Regulated Output Voltage. Connect a C
out
≥
22
mF
capacitor to ground.
Connect to ground potential or leave unconnected
.
Not connected. No internally bonded.
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2
NCV4263−2C
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Enable Input
Output Voltage
Reset Output Voltage
Watchdog Input Voltage
Reset Adjust Threshold
Delay Timing Output Voltage
Maximum Junction Temperature
Storage Temperature
Symbol
V
in
V
EN
V
out
V
RO
V
WDI
V
RADJ
V
D
T
J
T
STG
Min
−42
−42
−1
−0.3
−0.3
−0.3
−0.3
−40
−55
Max
45
45
7
7
7
7
7
150
150
Unit
V
V
V
V
V
V
V
°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. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
ESD CAPABILITY
(Note 2)
Rating
ESD Capability, Human Body Model
ESD Capability, Charged Device Model
Symbol
ESD
HBM
ESD
CDM
Min
−
−
Max
2
1
Unit
kV
kV
2. This device series incorporates ESD protection and is tested by the following methods:
ESD Human Body Model tested per AEC−Q100−002 (JS−001−2010)
ESD Charged Device Model tested per AEC−Q100−011 (EIA/JESD22−C101)
LEAD SOLDERING TEMPERATURE AND MSL
(Note 3)
Rating
Moisture Sensitivity Level
SOIC−14
SOIC−8 EP
Lead Temperature Soldering
Reflow (SMD Styles Only), Pb−Free Versions
Symbol
MSL
1
2
°C
T
SLD
−
265 peak
Min
Max
Unit
−
3. For more information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D
THERMAL CHARACTERISTICS
Rating
Thermal Characteristics, SOIC−8 Exposed Pad (Note 4)
Thermal Resistance, Junction−to−Air (Note 5)
Thermal Reference, Junction−to−Pad (Note 5)
Thermal Characteristics, SOIC−14 (Note 4)
Thermal Resistance, Junction−to−Air (Note 5)
Thermal Reference, Junction−to−Pin4 (Note 5)
Symbol
R
θJA
Y
ψJPad
R
θJA
Y
ψJP4
Value
65.1
8.7
°C/W
94.8
18.3
Unit
°C/W
4. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
5. Values based on copper area of 645 mm
2
(or 1 in
2
) of 1 oz copper thickness and FR4 PCB substrate.
OPERATING RANGES
(Note 6)
Rating
Input Voltage
Junction Temperature
Symbol
V
in
T
J
Min
5.5
−40
Max
40
150
Unit
V
°C
6. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
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3
NCV4263−2C
ELECTRICAL CHARACTERISTICS
V
in
= 13.5 V, V
EN
= 5 V, C
in
= 100 nF, C
out
= 22
mF,
ESR = 1.5
W,
WDI = 5 V pulses,
f
WDI
= 1 kHz. Min and Max values are valid for temperature range
*40°C v
T
J
v
150°C unless otherwise noted and are guaranteed by
test design or statistical correlation. Typical values are referenced to T
J
= 25°C. (Notes 7 and 8)
Parameter
REGULATOR OUTPUT
Output Voltage Accuracy
Line Regulation
Load Regulation
Dropout Voltage (Note 9)
V
in
= 6 V to 40 V, I
out
= 5 to 150 mA
I
out
= 150 mA, V
in
= 6 V to 28 V
I
out
= 5 mA to 150 mA
I
out
= 150 mA
V
out
Reg
line
Reg
load
V
DO
4.90
−25
−25
−
5.0
3
−
300
5.10
25
25
500
V
mV
mV
mV
Test Conditions
Symbol
Min
Typ
Max
Unit
DISABLE AND QUIESCENT CURRENTS
Disable Current
Quiescent Current, I
q
= I
in
− I
out
I
out
= 0 mA
I
out
= 150 mA
I
out
= 150 mA, V
in
= 4.5 V
CURRENT LIMIT PROTECTION
Current Limit
PSRR
Power Supply Ripple Rejection
(Note 10)
ENABLE
Enable Input Threshold Voltage
Logic High
Logic Low
Enable Input Current
WATCHDOG INPUT
Watchdog Input Low Time
Watchdog Trigger Time
DELAY TIMING
Charge Current
Discharge Current
Saturation Voltage
Switching Threshold
Upper
Lower
RESET OUTPUT
Output Voltage Reset Threshold
(Note 11)
Reset Adjust Threshold
Reset Adjustment Range (Note 12)
Reset Output Low Voltage
Reset Delay Time
I
RO
= 1 mA
C
D
= 100 nF
V
out
decreasing, V
RADJ
= 0 V
(70% of V
out_nom
)
v
V
out
< (V
RT
)
V
RT
V
th(RADJ)
V
RT_range
V
ROL
t
RD
90
1.26
70
−
1.3
93
1.36
−
0.01
2.6
96
1.44
93
0.4
4.1
% V
out
V
% V
out
V
ms
V
D
= 1 V, no WDI signal
V
D
= 1 V, no WDI signal
V
out
< V
RT
, no WDI signal
I
D_charge
I
D_disch
V
D_sat
V
thH(D)
V
thL(D)
40
4.40
−
1.45
0.2
66.8
6.54
6
1.70
0.34
95
9.40
100
2.05
0.55
mA
mA
mV
V
C
D
= 100 nF, V
out
> V
RT
, no WDI signal
C
D
= 100 nF, V
out
> V
RT
, no WDI signal
t
WL
t
WTT
1
16
2
20.8
3.5
27
ms
ms
V
out
w
0.9 x V
out_nom
V
out
v
0.1 V
V
EN
= 5 V
V
th(EN)
−
0.8
I
EN
5
2.0
1.74
10
3.5
−
25
mA
V
f = 100 Hz, 0.5 V
p−p
PSRR
−
80
−
dB
V
out
= 0.96 x V
out_nom
I
LIM
200
418
500
mA
V
EN
= 0 V,T
J
< 125°C
I
DIS
I
q
−
−
−
0.275
3
11.3
1.3
18
23
−
0.066
10
mA
mA
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.
7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T
A
[T
J
. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
9. Measured when output voltage falls 100 mV below the regulated voltage at V
in
= 13.5 V.
10. Values based on design and/or characterization.
11. See APPLICATION INFORMATION section for Reset Threshold Adjustment
12. V
RT_range
limits are guaranteed by V
RT
and V
th(RADJ)
parameters.
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4
NCV4263−2C
ELECTRICAL CHARACTERISTICS
V
in
= 13.5 V, V
EN
= 5 V, C
in
= 100 nF, C
out
= 22
mF,
ESR = 1.5
W,
WDI = 5 V pulses,
f
WDI
= 1 kHz. Min and Max values are valid for temperature range
*40°C v
T
J
v
150°C unless otherwise noted and are guaranteed by
test design or statistical correlation. Typical values are referenced to T
J
= 25°C. (Notes 7 and 8)
Parameter
RESET OUTPUT
Reset Reaction Time
THERMAL SHUTDOWN
Thermal Shutdown Temperature
(Note 10)
I
out
= 1 mA
T
SD
150
177
195
°C
C
D
= 100 nF
t
RR
0.5
1.2
4
ms
Test Conditions
Symbol
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.
7. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at T
A
[T
J
. Low duty
cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
9. Measured when output voltage falls 100 mV below the regulated voltage at V
in
= 13.5 V.
10. Values based on design and/or characterization.
11. See APPLICATION INFORMATION section for Reset Threshold Adjustment
12. V
RT_range
limits are guaranteed by V
RT
and V
th(RADJ)
parameters.
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