CS8182
Micropower 200 mA
Low Dropout Tracking
Regulator/Line Driver
The CS8182 is a monolithic integrated low dropout tracking
regulator designed to provides an adjustable buffered output voltage
that closely tracks (±10 mV) the reference input. The output delivers
up to 200 mA while being able to be configured higher, lower or equal
to the reference voltages.
The device has been designed to operate over a wide range (2.8 V to
45 V) while still maintaining excellent DC characteristics. The
CS8182 is protected from reverse battery, short circuit and thermal
runaway conditions. The device also can withstand 45 V load dump
transients and −50 V reverse polarity input voltage transients. This
makes it suitable for use in automotive environments.
The V
REF
/ENABLE lead serves two purposes. It is used to provide
the input voltage as a reference for the output and it also can be pulled
low to place the device in sleep mode where it nominally draws 30
mA
from the supply.
Features
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8
1
SO−8
DF SUFFIX
CASE 751
1
5
D
2
PAK−5
DPS SUFFIX
CASE 936AC
1
5
DPAK−5
DT SUFFIX
CASE 175AA
PIN CONNECTIONS AND
MARKING DIAGRAMS
1
V
OUT
GND
GND
Adj
8182
ALYW
G
8
V
IN
GND
GND
V
REF
/ENABLE
•
•
•
•
•
•
•
•
•
200 mA Source Capability
Output Tracks within
±10
mV Worst Case
Low Dropout (0.35 V Typ. @ 200 mA)
Low Quiescent Current
Thermal Shutdown
Short Circuit Protection
Wide Operating Range
Internally Fused Leads in SO−8 Package
For Automotive and Other Applications Requiring Site and Change
Control
•
These are Pb−Free Devices
V
IN
V
OUT
CS
8182
AWLYWWG
Tab GND
Pin 1. V
IN
2. V
OUT
3. GND
4. Adj
5. V
REF
8182G
ALYWW
1
5
1
A
WL, L
Y
WW, W
G or
G
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Device
ORDERING INFORMATION
Current Limit &
SAT Sense
Adj
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
−
ENABLE
+
V
REF
/ENABLE
+
GND
Thermal
Shutdown
−
2.0 V
Figure 1. Block Diagram
©
Semiconductor Components Industries, LLC, 2016
1
June, 2016 − Rev. 28
Publication Order Number:
CS8182/D
CS8182
PACKAGE PIN DESCRIPTION
Package Lead Number
SO−8
8
1
2, 3, 6, 7
4
5
D
2
PAK 5−PIN
1
2
3
4
5
DPAK 5−PIN
1
2
3
4
5
Lead Symbol
V
IN
V
OUT
GND
Adj
V
REF
/ENABLE
Input Voltage
Regulated Output
Ground
Adjust Lead
Reference Voltage and ENABLE Input
Function
MAXIMUM RATINGS
Rating
Storage Temperature Range
Junction Temperature
Supply Voltage Range (Continuous)
Peak Transient Voltage (V
IN
= 14 V, Load Dump Transient = 31 V)
Voltage Range (Adj, V
OUT
, V
REF
/ENABLE)
Package Thermal Resistance, SO−8:
Junction−to−Case, R
qJC
Junction−to−Air, R
qJA
Package Thermal Resistance, D
2
PAK
Junction−to−Case, R
qJC
Junction−to−Air, R
qJA
Package Thermal Resistance, DPAK
Junction−to−Case, R
qJC
Junction−to−Air, R
qJA
ESD Capability (Human Body Model)
(Machine Model)
Lead Temperature Soldering: (Note 1)
(SO−8)
(D
2
PAK)
(DPAK)
Value
−65 to +150
+150
−16 to 45
45
−10 to +V
IN
25
80
4.0
48
8.0
64
2.0
200
240
225
260
Unit
°C
°C
V
V
V
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
kV
V
°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. 60 second maximum above 183°C.
RECOMMENDED OPERATING RANGES
Rating
Junction Temperature, T
J
Input Voltage, Continuous V
IN
Value
−40 to+125
3.4 to 45
Unit
°C
V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
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2
CS8182
ELECTRICAL CHARACTERISTICS
(V
IN
= 14 V; V
REF
/ENABLE > 2.75 V; −40°C < T
J
< +125°C; C
OUT
≥
10
mF;
0.1
W
< C
OUT−ESR
< 1.0
W
@ 10 kHz, unless otherwise specified.)
Parameter
Regular Output
V
REF
− V
OUT
V
OUT
Tracking Error
Dropout Voltage (V
IN
− V
OUT
)
4.5 V
≤
V
IN
≤
26 V, 100
mA
≤
I
OUT
≤
200 mA, Note 2
V
IN
= 12 V, I
OUT
= 30 mA, V
REF
= 5.0 V, Note 2
I
OUT
= 100
mA
I
OUT
= 30 mA
I
OUT
= 200 mA
4.5 V
≤
V
IN
≤
26 V, Note 2
100
mA
≤
I
OUT
≤
200 mA, Note 2
Loop in Regulation
V
IN
= 14 V, V
REF
= 5.0 V, V
OUT
= 90% of V
REF
, Note 2
V
IN
= 12 V, I
OUT
= 200 mA
V
IN
= 12 V, I
OUT
= 100
mA
V
IN
= 12 V, V
REF
/ENABLE = 0 V
V
OUT
= 5.0 V, V
IN
= 0 V
f = 120 Hz, I
OUT
= 200 mA, 4.5 V
≤
V
IN
≤
26 V
GBD
−10
−5.0
−
−
−
−
−
−
250
−
−
−
−
60
150
−
−
100
−
350
−
−
0.2
−
15
75
30
0.2
−
180
10
5
150
500
600
10
10
1.0
700
25
150
55
1.5
−
210
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
mA
dB
°C
Test Conditions
Min
Typ
Max
Unit
Line Regulation
Load Regulation
Adj Lead Current
Current Limit
Quiescent Current (I
IN
− I
OUT
)
Reverse Current
Ripple Rejection
Thermal Shutdown
V
REF
/ENABLE
Enable Voltage
Input Bias Current
−
V
REF
/ENABLE
0.80
−
2.00
0.2
2.75
1.0
V
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.
2. V
OUT
connected to Adj lead.
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3
CS8182
TYPICAL CHARACTERISTICS
18
QUIESCENT CURRENT (mA)
16
14
12
10
8
6
4
2
0
0
20
40
60
80
100
120 140 160 180 200
OUTPUT CURRENT (mA)
Figure 2. Quiescent Current vs. Output Current
1
QUIESCENT CURRENT (mA)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
5
I (V
OUT
) = 1 mA
10
15
20
25
30
35
40
45
V
IN
, INPUT VOLTAGE (V)
I (V
OUT
) = 20 mA
QUIESCENT CURRENT (mA)
100
90
80
70
60
50
40
30
20
10
0
0
5
10
15
20
25
30
35
40
45
V
IN
, INPUT VOLTAGE (V)
V
REF
/ ENABLE = 0 V
Figure 3. Quiescent Current vs. Input Voltage
(Operating Mode)
Figure 4. Quiescent Current vs. Input Voltage
(Sleep Mode)
20
18
CURRENT INTO V
OUT
(mA)
16
14
12
10
8
6
4
2
0
0
5
V
IN
= 0 V
10
15
20
25
FORCED V
OUT
VOLTAGE (V)
V
IN
= 6 V*
V
REF
= 5 V**
CURRENT INTO V
OUT
(mA)
* Graph is duplicate for V
IN
> 1.6 V.
**Dip (@5 V) shifts with V
REF
voltage.
140
120
100
80
60
40
20
0
0
5
10
15
20
25
30
35
40
FORCED V
OUT
VOLTAGE (V)
V
IN
= 6 V*
V
REF
= 5 V**
V
IN
= 0 V
* Graph is duplicate for V
IN
> 1.6 V.
**Dip (@5 V) shifts with V
REF
voltage.
Figure 5. V
OUT
Reverse Current
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4
Figure 6. V
OUT
Reverse Current
CS8182
CIRCUIT DESCRIPTION
ENABLE Function
Output Voltage
By pulling the V
REF
/ENABLE lead below 2.0 V typically,
(see Figure 10 or Figure 11), the IC is disabled and enters a
sleep state where the device draws less than 55
mA
from
supply. When the V
REF
/ENABLE lead is greater than 2.75 V,
V
OUT
tracks the V
REF
/ENABLE lead normally.
The output is capable of supplying 200 mA to the load
while configured as a similar (Figure 7), lower (Figure 9), or
higher (Figure 8) voltage as the reference lead. The Adj lead
acts as the inverting terminal of the op amp and the V
REF
lead as the non−inverting.
The device can also be configured as a high−side driver as
displayed in Figure 12.
V
OUT
, 200 mA
Loads
V
OUT
C2**
GND
10
mF
R
F
GND
Adj
R
A
CS8182
CS8182
V
OUT
, 200 mA
Loads
V
OUT
C2**
GND
10
mF
GND
Adj
V
IN
GND
GND
C3***
10 nF
C1*
1.0
mF
B+
V
IN
GND
GND
C3***
10 nF
C1*
1.0
mF
B+
V
REF
/
ENABLE
5.0 V
V
REF
/
ENABLE
V
REF
VOUT
+
VREF
R
VOUT
+
VREF(1
)
E)
RA
Figure 7. Tracking Regulator at the Same Voltage
V
OUT
, 200 mA
Figure 8. Tracking Regulator at Higher Voltages
V
OUT
, 200 mA
CS8182
GND
GND
Adj
CS8182
Loads
C2**
10
mF
V
OUT
V
IN
GND
GND
R1
C3***
10 nF
C1*
1.0
mF
B+
V
OUT
GND
GND
V
IN
GND
GND
R
C3***
10 nF
C1*
1.0
mF
B+
C2**
10
mF
V
REF
/
ENABLE
V
REF
R2
from MCU
Adj
V
REF
/
ENABLE
V
REF
VOUT
+
VREF( R2 )
R1
)
R2
Figure 9. Tracking Regulator at Lower Voltages
V
IN
100 nF
5.0 V
To Load 10
mF
(e.g. sensor)
V
OUT
CS8182
GND
GND
Adj
V
IN
GND
GND
I/O
C3***
10 nF
C1*
1.0
mF
mC
V
REF
(5.0 V)
Figure 10. Tracking Regulator with ENABLE Circuit
6.0 V−40 V
NCV8501
200 mA
V
OUT
CS8182
GND
GND
Adj
V
IN
GND
GND
C3***
10 nF
B+
V
REF
/
ENABLE
MCU
V
REF
/
ENABLE
VOUT
+
B
) *
VSAT
Figure 11. Alternative ENABLE Circuit
* C1 is required if the regulator is far from the power source filter.
** C2 is required for stability.
*** C3 is recommended for EMC susceptibility.
Figure 12. High−Side Driver
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