NCV8772
Ultra Low I
q
350 mA LDO
Regulator with Enable and
Reset
The NCV8772 is 350 mA LDO regulator with integrated reset
functions dedicated for microprocessor applications. Its robustness allows
NCV8772 to be used in severe automotive environments. Ultra low
quiescent current as low as 24
mA
typical makes it suitable for
applications permanently connected to battery requiring ultra low
quiescent current with or without load. This feature is especially critical
when modules remain in active mode when ignition is off. The Enable
function can be used for further decrease of quiescent current in
shutdown mode to 1
mA.
The NCV8772 contains protection functions as
current limit, thermal shutdown and reverse output current protection.
Features
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MARKING
DIAGRAMS
DPAK−5
DT SUFFIX
CASE 175AA
772yxxG
ALYWW
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Output Voltage Options: 3.3 V and 5 V
Output Voltage Accuracy:
±1.5%
(T
J
= 25°C to 125°C)
Output Current up to 350 mA
Ultra Low Quiescent Current: typ 24
mA
(max 30
mA)
Very Wide Range of C
out
and ESR Values for Stability
Enable Function
−
1
mA
Max Quiescent Current when disabled
Microprocessor Compatible Control Functions:
−
Reset with Adjustable Power−On Delay
Wide Input Voltage Operation Range: up to 40 V
Protection Features
−
Current Limitation
−
Thermal Shutdown
−
Reverse Output Current Protection
These are Pb−Free Devices
Body Control Module
Instruments and Clusters
Occupant Protection and Comfort
Powertrain
V
BAT
C
in
0.1
mF
V
in
V
out
V
out
C
out
1
mF
V
DD
Microprocessor
D
2
PAK−5
D5S SUFFIX
CASE 936A
NC
V8772yxx
AWLYWWG
1
D
2
PAK−7
D7S SUFFIX
CASE 936AB
NC
V8772yxx
AWLYWWG
1
y
x, xx
A
WL, L
Y
WW
G
= Timing and Reset Threshold Option
= Voltage Option
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
Typical Applications
NCV8772
DT*
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
OFF ON
EN
GND
RO
RESET
* D2PAK−7 ONLY
Figure 1. Typical Application Schematic
©
Semiconductor Components Industries, LLC, 2011
December, 2011
−
Rev. 3
1
Publication Order Number:
NCV8772/D
NCV8772
V
in
V
out
*
Thermal
Shutdown
Driver
With
Current
Limit
EN
Enable
Erorr Amplifier
Reset Comparator
Reset Driver
RO
Reference
Timing
Circuit
DT**
***
GND
Oscillator
* 5 V OPTION ONLY
** D2PAK−7 ONLY
* ** Pull−Down Resistor (typ 150 kW) active only in Reset State
Figure 2. Simplified Block Diagram
PIN CONNECTIONS
PIN
Tab,
1. V
in
2. RO
3. GND
4. EN
5. V
out
PIN
Tab,
1. V
in
2. RO
3. GND
4. EN
5. V
out
PIN
Tab,
1
1
DPAK−5
D
2
PAK−5
1
D
2
PAK−7
1. V
in
2. RO
3. NC
4. GND
5. EN
6. DT
7. V
out
Figure 3. Pin Connections
PIN FUNCTION DESCRIPTION
Pin No.
DPAK−5
D2PAK−5
1
2
Pin No.
D2PAK−7
1
2
Pin Name
V
in
RO
Description
Positive Power Supply Input. Connect 0.1
mF
capacitor to ground.
Reset Output. 30 kW internal Pull−up resistor connected to V
out
. RO goes Low when V
out
drops by more than 7% (typ) from its nominal value (for NCV8772y devices with y = 1,2,3,...)
or more than 10% (typ) from its nominal value (for NCV8772y devices with y = A, B, C,...).
Not Connected
Power Supply Ground.
Enable Input. Low level disables the IC.
Reset Delay Time Select. Short to GND or connected to V
out
to select time.
Regulated Output Voltage. Connect 1
mF
capacitor with ESR < 100
W
to ground.
−
3, TAB
4
−
5
3
4, TAB
5
6
7
NC
GND
EN
DT
V
out
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2
NCV8772
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage (Note 1)
Input Current
Output Voltage (Note 2)
Output Current
Enable Input Voltage
Enable Input Current
DT (Reset Delay Time Select) Voltage
DT (Reset Delay Time Select) Current
Reset Output Voltage
Reset Output Current
Junction Temperature
Storage Temperature
DC
Transient, t < 100 ms
DC
Transient, t < 100 ms
Symbol
V
in
I
in
V
out
I
out
V
EN
I
EN
V
DT
I
DT
V
RO
I
RO
T
J
T
STG
Min
−0.3
−
−5
−0.3
−3
−0.3
−
−1
−0.3
−1
−0.3
−3
−40
−55
Max
40
45
−
5.5
Current Limited
40
45
1
5.5
1
5.5
3
150
150
Unit
V
mA
V
mA
V
mA
V
mA
V
mA
°C
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
2. 5.5 V or (V
in
+ 0.3 V) (whichever is lower).
ESD CAPABILITY
(Note 3)
Rating
ESD Capability, Human Body Model
ESD Capability, Machine Model
ESD Capability, Charged Device Model
Symbol
ESD
HBM
ESD
MM
ESD
CDM
Min
−2
−200
−1
Max
2
200
1
Unit
kV
V
kV
3. 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 Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)
ESD Charge Device Model tested per AEC−Q100−011 (EIA/JESD22−C101)
LEAD SOLDERING TEMPERATURE AND MSL
(Note 4)
Rating
Moisture Sensitivity Level
DPAK−5
D2PAK−5
D2PAK−7
Symbol
MSL
Min
1
1
3
−
265 peak
Max
Unit
−
Lead Temperature Soldering
Reflow (SMD Styles Only), Pb−Free Versions
T
SLD
°C
4. For more information, please refer to our Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
THERMAL CHARACTERISTICS
(Note 5)
Rating
Thermal Characteristics, DPAK−5
Thermal Resistance, Junction−to−Air (Note 6)
Thermal Reference, Junction−to−Case (Note 6)
Thermal Characteristics, D2PAK−5
Thermal Resistance, Junction−to−Air (Note 6)
Thermal Reference, Junction−to−Case (Note 6)
Thermal Characteristics, D2PAK−7
Thermal Resistance, Junction−to−Air (Note 6)
Thermal Reference, Junction−to−Case (Note 6)
Symbol
R
qJA
R
YJC
R
qJA
R
YJC
R
qJA
R
YJC
Value
56
8.4
53
8.4
51
8.4
Unit
°C/W
°C/W
°C/W
5. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
6. Values based on copper area of 645 mm
2
(or 1 in
2
) of 1 oz copper thickness and FR4 PCB substrate.
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3
NCV8772
RECOMMENDED OPERATING RANGE
(Note 7)
Rating
Input Voltage (Note 8)
Junction Temperature
Symbol
V
in
T
J
Min
4.5
−40
Max
40
150
Unit
V
°C
7. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.
8. Minimum V
in
= 4.5 V or (V
out
+ V
DO
), whichever is higher.
ELECTRICAL CHARACTERISTICS
V
in
= 13.2 V, V
EN
= 3 V, C
in
= 0.1
mF,
C
out
= 1
mF,
for typical values T
J
= 25°C, for min/max
values T
J
=
−40°C
to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter
REGULATOR OUTPUT
Output Voltage (Accuracy %)
T
J
= 25
°C
to 125
°C
3.3 V V
in
= 4.5 V to 16 V, I
out
= 0.1 mA to 200 mA
5.0 V V
in
= 5.575 V to 16 V, I
out
= 0.1 mA to 200 mA
V
out
3.2505
4.925
(−1.5 %)
3.234
3.234
4.9
4.9
(−2 %)
3.234
4.9
(−2 %)
−20
3.3
5.0
3.3495
5.075
(+1.5%)
3.366
3.366
5.1
5.1
(+2%)
3.366
5.1
(+2%)
20
V
Test Conditions
Symbol
Min
Typ
Max
Unit
Output Voltage (Accuracy %)
3.3 V V
in
= 4.5 V to 40 V, I
out
= 0.1 mA to 200 mA
V
in
= 4.5 V to 16 V, I
out
= 0.1 mA to 350 mA
5.0 V V
in
= 5.6 V to 40 V, I
out
= 0.1 mA to 200 mA
V
in
= 5.975 V to 16 V, I
out
= 0.1 mA to 350 mA
T
J
=
−40°C
to 125°C
3.3 V V
in
= 4.5 V to 28 V, I
out
= 0 mA to 350 mA
5.0 V V
in
= 5.975 V to 28 V, I
out
= 0 mA to 350 mA
V
out
3.3
3.3
5.0
5.0
V
Output Voltage (Accuracy %)
V
out
3.3
5.0
0
V
Line Regulation
3.3 V V
in
= 4.5 V to 28 V, I
out
= 5 mA
5.0 V V
in
= 6 V to 28 V, I
out
= 5 mA
I
out
= 0.1 mA to 350 mA
5.0 V I
out
= 200 mA
I
out
= 350 mA
I
out
= 0 mA to 350 mA
Reg
line
mV
Load Regulation
Dropout Voltage (Note 11)
Reg
load
V
DO
−35
−
−
1
0.01
10
250
440
−
−
35
500
875
100
100
mV
mV
Output Capacitor for Stability (Note 12)
C
out
ESR
mF
W
DISABLE AND QUIESCENT CURRENTS
Disable Current
Quiescent Current (I
q
= I
in
−
I
out
)
V
EN
= 0 V, T
J
< 85°C
I
out
= 0.1 mA, T
J
= 25°C
I
out
= 0.1 mA to 350 mA, T
J
≤
125°C
I
DIS
I
q
−
−
−
−
24
−
1
29
30
mA
mA
CURRENT LIMIT PROTECTION
Current Limit
Short Circuit Current Limit
V
out
= 0.96 x V
out_nom
V
out
= 0 V
V
EN
= 0 V, I
out
=
−1
mA
I
LIM
I
SC
V
out_rev
PSRR
400
400
−
−
1100
1100
mA
mA
REVERSE OUTPUT CURRENT PROTECTION
Reverse Output Current Protection
PSRR
Power Supply Ripple Rejection (Note 12) f = 100 Hz, 0.5 V
pp
−
60
−
dB
−
2
5.5
V
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10. 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.
11. Measured when output voltage falls 100 mV below the regulated voltage at V
in
= 13.2 V.
12. Values based on design and/or characterization.
13. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options
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4
NCV8772
ELECTRICAL CHARACTERISTICS
V
in
= 13.2 V, V
EN
= 3 V, C
in
= 0.1
mF,
C
out
= 1
mF,
for typical values T
J
= 25°C, for min/max
values T
J
=
−40°C
to 150°C; unless otherwise noted. (Notes 9 and 10)
Parameter
ENABLE THRESHOLDS
Enable Input Threshold Voltage
Logic Low
Logic High
Enable Input Current
Logic High
Logic Low
V
EN
= 5 V
V
EN
= 0 V, T
J
< 85°C
V
th(EN)
−
2.5
−
−
−
−
3
0.5
0.8
−
5
1
V
Test Conditions
Symbol
Min
Typ
Max
Unit
I
EN_ON
I
EN_OFF
mA
DT (RESET DELAY TIME SELECT)
−
D2PAK−7 ONLY
DT Threshold Voltage
Logic Low
Logic High
DT Input Current
RESET OUTPUT RO
Input Voltage Reset Threshold
Output Voltage Reset Threshold
(Note 13)
(NCV8772y) where y = 1,2,3,...
(NCV8772y) where y = A,B,C,...
Reset Hysteresis
Maximum Reset Sink Current
Reset Output Low Voltage
Reset Output High Voltage
5.0 V
3.3 V V
out
= 3 V, V
RO
= 0.25 V
5.0 V V
out
= 4.5 V, V
RO
= 0.25 V
V
out
> 1 V, I
RO
< 200
mA
3.3 V
V
in
decreasing, V
out
> V
RT
V
out
decreasing
3.3 V
5.0 V
3.3 V
5.0 V
V
in
> 4.5 V
V
in
> 5.5 V
V
in
> 4.5 V
V
in
> 5.5 V
V
RH
I
ROmax
V
ROL
V
ROH
I
ROLK
R
RO
t
RD
V
in_RT
V
RT
90
90
87
87
−
1.3
1.75
−
4.5
−
15
6.4
102.4
(20%)
3.2
102.4
(20%)
16
93
93
90
90
2.0
−
−
0.15
−
−
30
8.0
128
4.0
128
25
96
96
93
93
−
−
−
0.25
−
1.0
50
9.6
153.6
(20%)
4.8
153.6
(20%)
38
%V
out
mA
V
V
mA
kW
ms
−
3.8
4.2
V
%V
out
V
DT
= 5 V
V
th(DT)
−
2.0
−
−
−
−
0.8
−
1.0
V
I
DT
mA
Reset High Level Leakage Current
3.3 V
Integrated Reset Pull−up Resistor
5.0 V
Reset Delay Time (DPAK−5, D2PAK−5) Min Available Time
(Note 13)
Max Available Time
Reset Delay Time (D2PAK−7)
(Note 13)
Reset Reaction Time (see Figure 33)
THERMAL SHUTDOWN
Thermal Shutdown Temperature
(Note 12)
Thermal Shutdown Hysteresis
(Note 12)
Min Available Time, DT connected to GND
Max Available Time, DT connected to V
out
t
RD
ms
t
RR
T
SD
T
SH
ms
150
−
175
25
195
−
°C
°C
9. Refer to ABSOLUTE MAXIMUM RATINGS and APPLICATION INFORMATION for Safe Operating Area.
10. 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.
11. Measured when output voltage falls 100 mV below the regulated voltage at V
in
= 13.2 V.
12. Values based on design and/or characterization.
13. See APPLICATION INFORMATION section for Reset Thresholds and Reset Delay Time Options
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