CS8161
12 V, 5.0 V Low Dropout
Dual Regulator with ENABLE
The CS8161 is a 12 V/5.0 V dual output linear regulator. The
12 V
±5.0%
output sources 400 mA and the 5.0 V
±2.0%
output
sources 200 mA.
The on board ENABLE function controls the regulator’s two
outputs. When the ENABLE pin is low, the regulator is placed in
SLEEP mode. Both outputs are disabled and the regulator draws only
200 nA of quiescent current.
The primary output, V
OUT1
is protected against overvoltage
conditions. Both outputs are protected against short circuit and
thermal runaway conditions.
The CS8161 is packaged in a 5 lead TO−220 with copper tab. The
copper tab can be connected to a heat sink if necessary.
Features
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TO−220
FIVE LEAD
T SUFFIX
CASE 314D
1
5
TO−220
FIVE LEAD
TVA SUFFIX
CASE 314K
•
Two Regulated Outputs
−
12 V
±5.0%;
400 mA
−
5.0 V
±2.0%;
200 mA
•
Very Low SLEEP Mode Current Drain 200 nA
•
Fault Protection
−
Reverse Battery (−15 V)
−
74 V Load Dump
−
−100 V Reverse Transient
−
Short Circuit
−
Thermal Shutdown
•
Pb−Free Packages are Available*
1
1
TO−220
FIVE LEAD
THA SUFFIX
CASE 314A
5
PIN CONNECTIONS
Tab = GND
Pin 1. V
IN
2. V
OUT1
3. GND
4. ENABLE
5. V
OUT2
1
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 9 of this data sheet.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2006
June, 2006 − Rev. 7
1
Publication Order Number:
CS8161/D
CS8161
V
OUT2
V
IN
Anti−saturation
and
Current Limit
ENABLE
+
−
Pre−Regulator
+
−
V
OUT1
Overvoltage
Shutdown
Anti−saturation
and
Current Limit
+
−
Bandgap
Reference
GND
Thermal
Shutdown
Figure 1. Block Diagram
ABSOLUTE MAXIMUM RATINGS
Rating
Input Voltage:
Internal Power Dissipation
Junction Temperature Range
Storage Temperature Range
Lead Temperature Soldering
ESD (Human Body Model)
Wave Solder (through hole styles only) (Note 1)
Reflow (SMD styles only) (Note 2)
Operating Range
Overvoltage Protection
Value
−15 to 26
74
Internally Limited
−40 to +150
−65 to +150
260 peak
230 peak
2.0
Unit
V
V
−
°C
°C
°C
°C
kV
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. 10 second maximum.
2. 60 second maximum above 183°C
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2
CS8161
ELECTRICAL CHARACTERISTICS for V
OUT:
(6.0 V
≤
V
IN
≤
26 V; I
OUT1
= 5.0 mA; I
OUT2
= 5.0 mA;
−40°C
≤
T
J
≤
+150°C; −40°C
≤
T
A
≤
+125°C; unless otherwise specified.)
Characteristic
PRIMARY OUTPUT STAGE (V
OUT1
)
Output Voltage, V
OUT1
Dropout Voltage
Line Regulation
Load Regulation
Quiescent Current
Ripple Rejection
Current Limit
Reverse Polarity Input Voltage, DC
Reverse Polarity Input Voltage, Transient
Overvoltage Shutdown
Short Circuit Current
SECONDARY OUTPUT (V
OUT2
)
Output Voltage, (V
OUT2
)
Dropout Voltage
Line Regulation
Load Regulation
Quiescent Current
Ripple Rejection
Current Limit
Short Circuit Current
ENABLE FUNCTION (ENABLE)
Input ENABLE Threshold
Input ENABLE Current
OTHER FEATURES
Sleep Mode
Thermal Shutdown
Quiescent Current in Dropout
V
ENABLE
< 0.4 V
−
I
OUT1
= 100 mA, I
OUT2
= 50 mA
−
150
−
0.2
−
−
50
210
60
mA
°C
mA
V
OUT1
Off
V
OUT1
On
V
ENABLE
= 5.5 V
V
ENABLE
< 0.8 V
−
2.00
80
−10
1.30
1.30
−
−
0.80
−
500
10
V
V
mA
mA
6.0 V
≤
V
IN
≤
26 V, I
OUT2
≤
200 mA
I
OUT2
≤
200 mA
6.0 V
≤
V
IN
≤
26 V, 1.0 mA
≤
I
OUT
≤
200 mA
1.0 mA
≤
I
OUT2
≤
200 mA; V
IN
=14 V
I
OUT2
= 50 mA
I
OUT2
= 200 mA
f = 120 Hz; I
OUT
= 10 mA, V
IN
= 15 V, 2.0 V
RMS
−
−
4.90
−
−
−
−
−
42
200
−
−
0.35
−
−
5.0
20
−
−
−
5.10
0.60
50
50
10
35
−
600
400
V
V
mV
mV
mA
mA
dB
mA
mA
13 V
≤
V
IN
≤
26 V, I
OUT1
≤
400 mA
I
OUT1
= 400 mA
13 V
≤
V
IN
≤
20 V, 5.0 mA
≤
I
OUT
< 400 mA
5.0 mA
≤
I
OUT1
≤
400 mA, V
IN
= 14 V
I
OUT1
≤
100 mA, No Load on V
OUT2
I
OUT1
≤
400 mA, No Load on V
OUT2
f = 120 Hz, I
OUT
= 300
mA,
V
IN
= 15.0 V
DC
, 2.0 V
RMS
−
V
OUT1
≥
−0.6 V, 10
W
Load
1.0% Duty Cycle, t = 100 ms, V
OUT
≥
−6.0 V, 10
W
Load
−
−
11.4
−
−
−
−
−
42
0.40
−
−
28
−
12.0
0.35
−
−
8.0
50
−
−
−30
−80
34
−
12.6
0.6
80
80
12
75
−
1.0
−18
−50
45
700
V
V
mV
mV
mA
mA
dB
A
V
V
V
mA
Test Conditions
Min
Typ
Max
Unit
PACKAGE PIN DESCRIPTION
PACKAGE LEAD #
5 Lead TO−220
1
2
3
4
5
LEAD SYMBOL
V
IN
V
OUT1
GND
ENABLE
V
OUT2
FUNCTION
Supply voltage, usually direct from battery.
Regulated output 12 V, 400 mA (typ).
Ground connection.
CMOS compatible input lead; switches outputs on and off.
When ENABLE is high V
OUT1
and V
OUT2
are active.
Regulated output 5.0 V, 200 mA (typ).
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3
CS8161
TYPICAL PERFORMANCE CHARACTERISTICS
12.150
12.110
12.070
12.030
Volt 1
11.990
11.950
11.910
11.870
11.830
11.790
11.750
−40 −20
0
20
40
60
80
100 120 140 160
10
V
IN
= 14 V
I
OUT1
= 5.0 A
Line Regulation (mV)
5
0
−5
−10
−15
−20
−25
−30
−35
−40
0
50
V
IN
= 13−26V
25°C
125°C
−40°C
100 150 200 250
300 350 400 450 500
Temperature (°C)
Output Current (mA)
Figure 2. Output Voltage vs. Temperature
for V
OUT1
15
10
5
Load Regulation (mV)
0
5
10
15
20
25
30
35
40
0
50
100 150 200 250
300 350 400 450 500
Figure 3. Line Regulation vs. Output
Current for V
OUT1
100
90
Quiescent Current (mA)
80
70
60
50
40
30
20
10
0
0
50
100 150 200 250
300 350 400 450 500
V
IN
= 14 V
−40°C
V
IN
= 14 V
No Load on V
OUT2
125°C
−40°C
25°C
25°C
125°C
Output Current (mA)
Output Current (mA)
Figure 4. Load Regulation vs. Output
Current for V
OUT1
600
550
Dropout Voltage (mV)
500
450
400
350
300
250
200
150
100
50
0
0
50
100 150 200 250 300 350 400 450 500
Figure 5. Quiescent Current vs. Output
Current for V
OUT1
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0
V
IN
= 11 V
Quiescent Current (mA)
V
IN
= 11 V
No Load on V
OUT2
−40°C
25°C
125°C
25°C
125°C
−40°C
50
100
150 200 250 300
350 400 450 500
Output Current (mA)
Output Current (mA)
Figure 6. Dropout Voltage vs. Output
Voltage for V
OUT1
Figure 7. Quiescent Current vs. Output
Current @ Dropout for V
OUT1
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4
CS8161
TYPICAL PERFORMANCE CHARACTERISTICS
(continued)
5.025
5.020
5.015
Output Voltage
5.010
5.005
5.000
4.995
4.990
4.985
4.980
4.975
−40 −20
0
20
40
60
80
100 120 140 160
3
V
IN
= 11 V
I
OUT
= 5.0 mA
Load Regulation (mV)
2
1
0
−1
−2
−3
−4
−5
−6
−7
−8
0
25
50
75
100 125 150 175 200 225 250
V
IN
= 6.0−26V
125°C
−40°C
25°C
Temperature (°C)
Output Current (mA)
Figure 8. Output Voltage vs. Temperature
for V
OUT2
8
6
4
2
0
−2
−4
−6
−8
−10
−12
−14
−16
−18
0
Figure 9. Line Regulation vs. Output
Current for V
OUT2
50
V
IN
= 14 V
−40°C
Quiescent Current (mA)
45
40
35
30
25
20
15
10
5
V
IN
= 14 V
No Load on V
OUT1
−40°C
125°C
25°C
Load Regulation (mV)
25°C
125°C
25
50
75
100 125 150 175 200 225 250
0
0
25
50
75
100 125 150 175 200 225 250
Output Current (mA)
Output Current (mA)
Figure 10. Load Regulation vs. Output
Current for V
OUT2
800
750
700
650
600
550
500
450
400
350
300
250
200
150
100
50
0
0
Figure 11. Quiescent Current vs. Output
Current for V
OUT2
60
55
Quiescent Current (mA)
50
45
40
35
30
25
20
15
10
5
0
125°C
V
IN
= 4.0 V
No Load on V
OUT1
125°C
V
IN
= 4.0 V
−40°C
Dropout Voltage (mV)
−40°C
25°C
25°C
25
50
75
100 125 150 175 200 225 250
0
25
50
75
100 125 150
175 200
225 250
Output Current (mA)
Output Current (mA)
Figure 12. Dropout Voltage vs. Output
Current for V
OUT2
Figure 13. Quiescent Current vs. Output
Current @ Dropout for V
OUT2
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