NCV8502 Series
Micropower 150 mA LDO
Linear Regulators with
DELAY, Adjustable RESET,
and Monitor FLAG
The NCV8502 is a family of precision micropower voltage
regulators. Their output current capability is 150 mA. The family has
output voltage options for adjustable, 2.5 V, 3.3 V, 5.0 V, 8.0 V, and 10 V.
The output voltage is accurate within
±2.0%
with a maximum
dropout voltage of 0.6 V at 150 mA. Low quiescent current is a feature
drawing only 90
mA
with a 100
mA
load. This part is ideal for any and
all battery operated microprocessor equipment.
Microprocessor control logic includes an active RESET (with
DELAY), and a FLAG monitor which can be used to provide an early
warning signal to the microprocessor of a potential impending RESET
signal. The use of the FLAG monitor allows the microprocessor to
finish any signal processing before the RESET shuts the
microprocessor down.
The active RESET circuit operates correctly at an output voltage as
low as 1.0 V. The RESET function is activated during the power up
sequence or during normal operation if the output voltage drops
outside the regulation limits.
The reset threshold voltage can be decreased by the connection of
external resistor divider to R
ADJ
lead.
The regulator is protected against reverse battery, short circuit, and
thermal overload conditions. The device can withstand load dump
transients making it suitable for use in automotive environments. The
device has also been optimized for EMC conditions.
Features
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8
1
SO−8
D SUFFIX
CASE 751
16
1
SOIC 16 LEAD
WIDE BODY
EXPOSED PAD
PDW SUFFIX
CASE 751AG
MARKING DIAGRAMS
SO−8
8
8502x
ALYW
G
1
x
= Voltage Ratings as Indicated Below:
A = Adjustable
2 = 2.5 V
3 = 3.3 V
5 = 5.0 V
8 = 8.0 V
0 = 10 V
A
= Assembly Location
WL, L = Wafer Lot
YY, Y
= Year
WW, W = Work Week
G or
G
= Pb−Free Device
8502x
AWLYYWWG
SOW−16
E PAD
16
1
•
•
•
•
•
•
•
•
•
•
•
•
•
Output Voltage Options: Adjustable, 2.5 V, 3.3 V, 5.0 V, 8.0 V, 10 V
±2.0%
Output
Low 90
mA
Quiescent Current
Fixed or Adjustable Output Voltage
Active RESET
Adjustable Reset
150 mA Output Current Capability
Fault Protection
♦
+60 V Peak Transient Voltage
♦
−15
V Reverse Voltage
♦
Short Circuit
♦
Thermal Overload
Early Warning through FLAG/MON Leads
NCV Prefix for Automotive and Other Applications Requiring Site
and Change Control
AEC Qualified
PPAP Capable
These are Pb−Free Devices
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
©
Semiconductor Components Industries, LLC, 2008
October, 2008
−
Rev. 31
1
Publication Order Number:
NCV8502/D
NCV8502 Series
PIN CONNECTIONS, ADJUSTABLE OUTPUT
SO−8
V
IN
MON
NC
NC
1
8
V
OUT
V
ADJ
FLAG
GND
V
ADJ
V
OUT
NC
NC
NC
NC
V
IN
MON
SOW−16 E PAD
1
16
FLAG
NC
NC
GND
NC
NC
NC
NC
PIN CONNECTIONS, FIXED OUTPUT
SO−8
V
IN
MON
R
ADJ
DELAY
1
8
V
OUT
FLAG
RESET
GND
FLAG
V
OUT
NC
NC
NC
NC
V
IN
MON
SOW−16 E PAD
1
16
RESET
NC
NC
GND
NC
NC
DELAY
R
ADJ
V
BAT
10
mF
V
IN
V
OUT
10
mF
R
ADJ
V
DD
NCV8502
DELAY
C
DELAY
V
ADJ
(Adjustable
Output Only)
FLAG
RESET
GND
MON
R
FLG
10 k
R
RST
10 k
I/O
Figure 1. Application Diagram
MAXIMUM RATINGS*
Rating
V
IN
(dc)
Peak Transient Voltage (46 V Load Dump @ V
IN
= 14 V)
Operating Voltage
V
OUT
(dc)
Voltage Range (RESET, FLAG)
Value
−15
to 48
60
45
−0.3
to 16
−0.3
to 10
Unit
V
V
V
V
V
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.
*During the voltage range which exceeds the maximum tested voltage of V
IN
, operation is assured, but not specified. Wider limits may apply.
Thermal dissipation must be observed closely.
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2
Microprocessor
I/O
NCV8502 Series
MAXIMUM RATINGS* (continued)
Rating
Input Voltage Range (MON, V
ADJ
, R
ADJ
)
ESD Susceptibility (Human Body Model)
Junction Temperature
Storage Temperature
Package Thermal Resistance, SO−8:
Junction−to−Case
Junction−to−Ambient
Junction−to−Case
Junction−to−Ambient
Junction−to−Pin (Note 1)
T
J
T
S
R
qJC
R
qJA
R
qJC
R
qJA
R
qJP
SLD
Symbol
Value
−0.3
to 10
2.0
−40
to +150
−55
to 150
45
165
15
56
35
265 peak
Unit
V
kV
°C
°C
°C/W
°C/W
°C/W
°C/W
°C/W
°C
Package Thermal Resistance, SOW−16 E PAD:
Lead Temperature Soldering: SMD style only, Reflow (Note 2)
Pb−Free Part 60
−
150 sec above 217°C, 40 sec max at peak
1. Measured to pin 16.
2. Per IPC / JEDEC J−STD−020C.
*During the voltage range which exceeds the maximum tested voltage of V
IN
, operation is assured, but not specified. Wider limits may apply.
Thermal dissipation must be observed closely.
ELECTRICAL CHARACTERISTICS
(I
OUT
= 1.0 mA,
−40°C
≤
T
J
≤
150°C; V
IN
= dependent on voltage option (Note 3); unless
otherwise specified.)
Characteristic
Output Stage
Output Voltage for 2.5 V Option
Output Voltage for 3.3 V Option
Output Voltage for 5.0 V Option
Output Voltage for 8.0 V Option
Output Voltage for 10 V Option
Output Voltage for Adjustable
Option
Dropout Voltage (V
IN
−
V
OUT
)
(5.0 V, 8.0 V, 10 V and
Adj. > 5.0 V Options Only)
Load Regulation
Line Regulation
Quiescent Current, Low Load
2.5 V Option
3.3 V Option
5.0 V Option
8.0 V Option
10 V Option
Adjustable Option
Quiescent Current, Medium Load
All Options
Quiescent Current, High Load
All Options
Current Limit
6.5 V < V
IN
< 16 V, 100
mA
≤
I
OUT
≤
150 mA
5.5 V < V
IN
< 26 V,
100
mA
≤
I
OUT
≤
150 mA
7.3 V < V
IN
< 16 V, 100
mA
≤
I
OUT
≤
150 mA
5.5 V < V
IN
< 26 V,
100
mA
≤
I
OUT
≤
150 mA
9.0 V < V
IN
< 16 V, 100
mA
≤
I
OUT
≤
150 mA
6.0 V < V
IN
< 26 V,
100
mA
≤
I
OUT
≤
150 mA
9.0 V < V
IN
< 26 V,
100
mA
≤
I
OUT
≤
150 mA
11 V < V
IN
< 26 V,
100
mA
≤
I
OUT
≤
150 mA
V
OUT
= V
ADJ
(Unity Gain)
6.5 V < V
IN
< 16 V, 100
mA
< I
OUT
< 150 mA
5.5 V < V
IN
< 26 V, 100
mA
< I
OUT
< 150 mA
I
OUT
= 150 mA
I
OUT
= 1.0 mA
V
IN
= 14 V, 5.0 mA
≤
I
OUT
≤
150 mA
[V
OUT
(Typ) + 1.0] < V
IN
< 26 V, I
OUT
= 1.0 mA
I
OUT
= 100
mA,
V
IN
= 12 V, MON = V
OUT
−
−
−
−
−
−
I
OUT
= 75 mA, V
IN
= 14 V, MON = V
OUT
I
OUT
= 150 mA, V
IN
= 14 V, MON = V
OUT
−
−
−
151
90
90
90
100
100
50
4.0
12
300
125
125
125
150
150
75
6.0
19
−
mA
mA
mA
mA
mA
mA
mA
mA
mA
2.450
2.425
3.234
3.201
4.90
4.85
7.76
9.7
2.5
2.5
3.3
3.3
5.0
5.0
8.0
10
2.550
2.575
3.366
3.399
5.10
5.15
8.24
10.3
V
V
V
V
V
V
V
V
V
V
V
mV
mV
mV
mV
Test Conditions
Min
Typ
Max
Unit
1.254
1.242
−
−
−30
−
1.280
1.280
400
100
5.0
15
1.306
1.318
600
150
30
60
3. Voltage range specified in Output Stage of the Electrical Characteristics in boldface type.
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3
NCV8502 Series
unless otherwise specified.)
Characteristic
Output Stage
Short Circuit Output Current
Thermal Shutdown
Reset Function (RESET)
RESET Threshold for 2.5 V Option
HIGH (V
RH
)
LOW (V
RL
)
RESET Threshold for 3.3 V Option
HIGH (V
RH
)
LOW (V
RL
)
RESET Threshold for 5.0 V Option
HIGH (V
RH
)
LOW (V
RL
)
RESET Threshold for 8.0 V Option
HIGH (V
RH
)
LOW (V
RL
)
RESET Threshold for 10 V Option
HIGH (V
RH
)
LOW (V
RL
)
Output Voltage
Low (V
RLO
)
DELAY Switching Threshold (V
DT
)
DELAY Low Voltage
DELAY Charge Current
DELAY Discharge Current
Reset Adjust Switching Voltage
(V
R(ADJ)
)
FLAG/Monitor
Monitor Threshold
Hysteresis
Input Current
Output Saturation Voltage
MON = 2.0 V
MON = 0 V, I
FLAG
= 1.0 mA
Increasing and Decreasing
−
1.10
20
−0.5
−
1.20
50
0.1
0.1
1.31
100
0.5
0.4
V
mV
mA
V
5.5 V
≤
V
IN
≤
26 V (Note 5)
V
OUT
Increasing
V
OUT
Decreasing
5.5 V
≤
V
IN
≤
26 V (Note 5)
V
OUT
Increasing
V
OUT
Decreasing
V
OUT
Increasing
V
OUT
Decreasing
V
OUT
Increasing
V
OUT
Decreasing
V
OUT
Increasing
V
OUT
Decreasing
1.0 V
≤
V
OUT
≤
V
RL
, R
RESET
= 10 k
−
V
OUT
< RESET Threshold Low(min)
DELAY = 1.0 V, V
OUT
> V
RH
DELAY = 1.0 V, V
OUT
= 1.5 V
−
2.28
2.25
3.00
2.97
4.55
4.50
7.05
7.00
8.60
8.50
−
1.4
−
1.5
5.0
1.23
2.350
2.300
3.102
3.036
4.70
4.60
7.52
7.36
9.40
9.20
0.1
1.8
−
2.5
−
1.31
0.98
×
V
OUT
0.97
×
V
OUT
0.98
×
V
OUT
0.97
×
V
OUT
0.98
×
V
OUT
0.97
×
V
OUT
0.98
×
V
OUT
0.97
×
V
OUT
0.98
×
V
OUT
0.97
×
V
OUT
0.4
2.2
0.1
3.5
−
1.39
V
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
V
V
OUT
= 0 V
(Guaranteed by Design)
40
150
190
180
−
−
mA
°C
ELECTRICAL CHARACTERISTICS (continued)
(I
OUT
= 1.0 mA;
−40°C
≤
T
J
≤
150°C; V
IN
= dependent on voltage option (Note 4);
Test Conditions
Min
Typ
Max
Unit
Voltage Adjust (Adjustable Output only)
Input Current
V
ADJ
= 1.28 V
−0.5
−
0.5
mA
4. Voltage range specified in Output Stage of the Electrical Characteristics in boldface type.
5. For V
IN
≤
5.5 V, a RESET = Low may occur with the output in regulation.
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4
NCV8502 Series
PACKAGE PIN DESCRIPTION, ADJUSTABLE OUTPUT
Package Pin Number
SO−8
1
2
3, 4
5
6
7
8
SOW−16
E PAD
7
8
3−6, 9−12,
14, 15
13
16
1
2
Pin Symbol
V
IN
MON
NC
GND
FLAG
V
ADJ
V
OUT
Input Voltage.
Monitor. Input for early warning comparator. If not needed connect to V
OUT.
No connection.
Ground. All GND leads must be connected to Ground
.
Open collector output from early warning comparator.
Voltage Adjust. A resistor divider from V
OUT
to this lead sets the output voltage.
±2.0%,
150 mA output.
Function
PACKAGE PIN DESCRIPTION, FIXED OUTPUT
Package Pin Number
SO−8
1
2
3
4
5
6
7
8
−
SOW−16
E PAD
7
8
9
10
13
16
1
2
3−6, 11, 12,
14, 15
Pin Symbol
V
IN
MON
R
ADJ
DELAY
GND
RESET
FLAG
V
OUT
NC
Input Voltage.
Monitor. Input for early warning comparator. If not needed connect to V
OUT.
Reset Adjust. If not needed connect to ground.
Timing capacitor for RESET function.
Ground. All GND leads must be connected to Ground
.
Active reset (accurate to V
OUT
≥
1.0 V)
Open collector output from early warning comparator.
±2.0%,
150 mA output.
No connection.
Function
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