negative fixed voltage regulator sg120
SG120
NEGATIVE FIXED VOLTAGE REGULATOR
DESCRIPTION
FEATURES
The SG120 series of negative regulators offer self-contained, fixed-voltage
capability with up to 1.5A of load current. With a variety of output voltages and four
package options this regulator series is an optimum complement to the SG7800A/
7800/120 line of three terminal regulators.
•
•
•
•
•
•
All protective features of thermal shutdown, current limiting, and safe-area control
have been designed into these units and since these regulators require only a
single output capacitor or a capacitor and 5mA minimum load for satisfactory
performance, ease of application is assured.
Although designed as fixed-voltage regulators, the output voltage can be increased through the use of a simple voltage divider. The low quiescent drain
current of the device insures good regulation when this method is used, especially
for the SG120 series. Utilizing an improved Bandgap reference design, problems
have been eliminated that are normally associated with the zener diode references, such as drift in output voltage and large changes in the line and load
regulation
Output current to 1.5A
Excellent line and load regulation
Foldback current limiting
Thermal overload protection
Voltages available: -5V, -12V, -15V
Voltages Not Recommended For New
Designs: -5.2V, -8V, -18V, -20V
• Contact factory for other voltage
options
HIGH RELIABILITY FEATURES
- SG120
♦ Available to MIL-STD - 883
♦ Radiation data available
♦ LMI level "S" processing available
These devices are available in TO-257 (hermetically sealed TO-220), both
isolated and non-isolated), TO-3, TO-39 and TO-66 power packages.
SCHEMATIC DIAGRAM
11/91 Rev 1.4 6/97
Copyright  1997
1
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
NEGATIVE REGULATOR
ABSOLUTE MAXIMUM RATINGS (Note 1)
Device
Output Voltage
-5V
-5.2V
-8V
-12V
-15V
-18V
-20V
Input Voltage
-35V
-35V
-35V
-35V
-40V
-40V
-40V
Operating Junction Temperature
Hermetic (K, R, IG - Packages) ................................... 150°C
Input Voltage Differential
(Output shorted to ground)
35V
35V
35V
35V
35V
35V
35V
Storage Temperature Range ........................... -65°C to 150°C
Lead Temperature (Soldering, 10 Seconds) ................. 300°C
Note 1. Values beyond which damage may occur.
THERMAL DATA
K Package:
Thermal Resistance-Junction to Case, θJC ................. 3.0°C/W
Thermal Resistance-Junction to Ambient, θJA ............... 35°C/W
R Package:
Thermal Resistance-Junction to Case, θJC ................. 5.0°C/W
Thermal Resistance-Junction to Ambient, θJA .............. 40°C/W
T Package:
Thermal Resistance-Junction to Case, θJC .................. 15°C/W
Thermal Resistance-Junction to Ambient, θJA ............ 120°C/W
IG Package:
Thermal Resistance-Junction to Case, θJC ................. 3.5°C/W
Thermal Resistance-Junction to Ambient, θJA .............. 42°C/W
L Package:
Thermal Resistance-Junction to Case, θJC .................. 35°C/W
Thermal Resistance-Junction to Ambient, θJA ............ 120°C/W
RECOMMENDED OPERATING CONDITIONS
Note A. Junction Temperature Calculation: TJ = TA + (PD x θJA).
Note B. The above numbers for θJC are maximums for the limiting thermal
resistance of the package in a standard mounting configuration.
The θJA numbers are meant to be guidelines for the thermal
performance of the device/pc-board system. All of the above
assume no ambient airflow.
(Note 2)
Operating Junction Temperature Range:
SG120 ........................................................... -55°C to 150°C
Note 2. Range over which the device is functional.
CHARACTERISTIC CURVES
FIGURE 1.
MAXIMUM AVERAGE POWER DISSIPATION
FIGURE 2.
QUIESCENT CURRENT VS. LOAD
FIGURE 3.
TEMPERATURE COEFFICIENT
11/91 Rev 1.4 6/97
Copyright  1997
2
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
NEGATIVE REGULATOR
CHARACTERISTIC CURVES
(continued)
FIGURE 4.
SHORTCIRCUIT CURRENT VS. VIN
FIGURE 5.
QUIESCENT CURRENT VS. VIN
FIGURE 7.
DROPOUT CHARACTERISTICS
FIGURE 6.
SHORT CIRCUIT CURRENT VS. VIN
FIGURE 8.
RIPPLE REJECTION VS. FREQUENCY
APPLICATIONS
FIGURE 10 - CIRCUIT FOR INCREASING OUTPUT VOLTAGE
FIGURE 9 - FIXED OUTPUT REGULATOR
NOTE: C3 optional for improved transient response and ripple
rejection.
R + R2
V(REG)
R2 =
VOUT = V (REGULATOR) 1
R1
15mA
NOTE: 1. C1 is required only if regulator is separated from rectifier filter.
2. Both C1 and C2 should be low E.S.R. types such as solid
tantalum. If aluminum electrolitics are used, at least 10 times
values shown should be selected.
3. If large output capacities are used, the regulators must be
protected from momentary input shorts. A high current diode
from output to input will suffice.
11/91 Rev 1.4 6/97
Copyright  1997
3
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
-5.0V & -5.2V NEGATIVE REGULATOR
ELECTRICAL CHARACTERISTICS
(Note 1)
SG120-05
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-05 with -55°C ≤ TA ≤ 150°C, and
VIN = -10V, IO = 5mA, CIN = 2mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-05
Min. Typ. Max.
-4.9 -5.0 -5.1
10
25
50
75
30
50
Test Conditions
TJ = 25°C
VIN = -7V to -25V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -7.5V to -25V
Power Pkgs: IO = 5mA to 1.5A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -7V to -25V
With Line: VIN = -7V to -25V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-4.8
-4.8
-5.0
-5.0
Units
V
mV
mV
mV
-5.2
-5.2
2
0.4
V
V
mA
mA
0.4
0.4
mA
mA
1.1
2.3
3.3
1.4
1.2
0.6
25
20
175
80
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
54
SG120-5.2
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-5.2 with -55°C ≤ TA ≤ 150°C, and
VIN = -10V, IO = 5mA, CIN = 2mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-5.2
Min. Typ. Max.
-5.1 -5.2 -5.3
15
25
50
75
30
50
Test Conditions
TJ = 25°C
VIN = -7.2V to -25V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -7.7V to -25V
Power Pkgs: IO = 5mA to 1.5A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -7.2V to -25V
With Line: VIN = -7.2V to -25V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.5A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-5.0
-5.0
-5.2
-5.2
Units
V
mV
mV
mV
-5.4
-5.4
2
0.4
V
V
mA
mA
0.4
0.4
mA
mA
1.1
2.3
3.3
1.4
1.2
0.6
25
20
175
80
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
54
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing.
2. This test is guaranteed but is not tested in production.
11/91 Rev 1.4 6/97
Copyright  1997
4
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
-8V & -12V NEGATIVE REGULATOR
ELECTRICAL CHARACTERISTICS
(Note 1)
SG120-08
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-08 with -55°C ≤ TA ≤ 150°C, and
VIN = -14V, IO = 5mA, CIN = 1.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-8
Min. Typ. Max.
-7.8 -8.0 -8.2
10
25
20
80
10
25
Test Conditions
TJ = 25°C
VIN = -10.5V to -25V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -10.5V to -25V
Power Pkgs: IO = 5mA to 1.5A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -10.5V to -25V
With Line: VIN = -10.5V to -25V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.5A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-7.65 -8.00 -8.35
-7.65 -8.00 -8.35
2
0.4
Units
V
mV
mV
mV
V
V
mA
mA
0.4
0.4
mA
mA
1.1
2.3
3.3
1.4
1.2
0.6
25
32
175
80
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
54
SG120-12
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-12 with -55°C ≤ TA ≤ 150°C, and
VIN = -17V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-12
Min. Typ. Max.
-11.7 -12.0 -12.3
4
10
30
80
10
25
Test Conditions
TJ = 25°C
VIN = -14V to -32V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -14.5V to -32V
Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -14V to -32V
With Line: VIN = -14V to -32V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-11.5 -12.0 -12.5
-11.5 -12.0 -12.5
2
4
0.4
Units
V
mV
mV
mV
V
V
mA
mA
0.4
0.4
mA
mA
1.1
2.3
3.3
1.4
1.2
0.6
25
48
175
80
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
56
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing.
2. This test is guaranteed but is not tested in production.
11/91 Rev 1.4 6/97
Copyright  1997
5
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
-15V & -18V NEGATIVE REGULATOR
ELECTRICAL CHARTACTERISTICS
(Note 1)
SG120-15
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-15 with -55°C ≤ TA ≤ 150°C, and
VIN = -20V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-15
Min. Typ. Max.
-14.7 -15.0 -15.3
5
10
30
80
10
25
Test Conditions
TJ = 25°C
VIN = -17V to -35V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -17.5V to -35V
Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -17V to -35V
With Line: VIN = -17V to -35V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-14.5 -15.0 -15.5
-14.5 -15.0 -15.5
2
4
0.4
Units
V
mV
mV
mV
V
V
mA
mA
0.4
0.4
mA
mA
1.1
2.3
3.3
1.4
1.2
0.6
25
60
175
80
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
56
SG120-18
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-18 with -55°C ≤ TA ≤ 150°C, and
VIN = -27V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-18
Min. Typ. Max.
-17.6 -18.0 -18.4
5
10
30
80
10
25
Test Conditions
TJ = 25°C
VIN = -21V to -33V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -22V to -33V
Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -21V to -33V
With Line: VIN = -21V to -33V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-17.4 -18.0 -18.6
-17.4 -18.0 -18.6
2
4
0.4
1.1
1.5
0.5
56
25
72
175
Units
V
mV
mV
mV
V
V
mA
mA
0.4
0.4
mA
mA
2.3
3.3
1.4
1.2
0.6
V
A
A
A
A
dB
µV/V
mV
°C
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing.
2. This test is guaranteed but is not tested in production.
11/91 Rev 1.4 6/97
Copyright  1997
6
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
-20V NEGATIVE REGULATOR
ELECTRICAL CHATRACTERISTICS
(Note 1)
SG120-20
(Unless otherwise specified, these specifications apply over full operating ambient temperatures for SG120-20 with -55°C ≤ TA ≤ 150°C, and
VIN = -29V, IO = 5mA, CIN = 2.0mF, COUT = 1.0mF. Low duty cycle pulse testing techniques are used which maintains junction and case temperature equal
to the ambient temperature.)
Parameter
Output Voltage
Line Regulation (Note 1)
Load Regulation (Note 1)
Total Output Voltage
Tolerance
Quiescent Current
Quiescent Current Change
Dropout Voltage
Peak Output Current
Short Circuit Current
Ripple Rejection
Output Noise Voltage (rms)
Long Term Stability
Thermal Shutdown
SG120-20
Units
Min. Typ. Max.
-19.5 -20.0 -20.5
V
5
10
mV
30
80
mV
10
25
mV
Test Conditions
TJ = 25°C
VIN = -23V to -35V, TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A, TJ = 25°C
T - Pkg: IO = 5mA to 500mA, TJ = 25°C
VIN = -24V to -35V
Power Pkgs: IO = 5mA to 1.0A, P ≤ 20W
T - Pkg: IO = 5mA to 500mA, P ≤ 2W
VIN = -23V to -35V
With Line: VIN = -23V to -35V, TJ = 25°C
With Load: TJ = 25°C
Power Pkgs: IO = 5mA to 1.0A
T - Pkg: IO = 5mA to 500mA
∆VO = 100mV, TJ = 25°C
Power Pkgs: IO = 1.0A, T - Pkg: IO = 500mA
Power Pkgs: TJ = 25°C
T - Pkg: TJ = 25°C
Power Pkgs: VIN = -35V, TJ = 25°C
T - Pkg: VIN = -35V, TJ = 25°C
∆VIN = 10V, f = 120Hz, TJ = 25°C
f = 10Hz to 100KHz (Note 2)
1000hrs. at TJ = 125°C
IO = 5mA
-19.3 -20.0 -20.7
-19.3 -20.0 -20.7
2
4
0.4
V
V
mA
mA
0.4
0.4
mA
mA
1.1
2.3
3.3
1.4
1.2
0.6
25
80
175
80
V
A
A
A
A
dB
µV/V
mV
°C
1.5
0.5
56
Note 1. All regulation tests are made at constant junction temperature with low duty cycle testing.
2. This test is guaranteed but is not tested in production.
11/91 Rev 1.4 6/97
Copyright  1997
7
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
SG120
NEGATIVE REGULATOR
CONNECTION DIAGRAMS & ORDERING INFORMATION
Package
3-TERMINAL TO-3
METAL CAN
K-PACKAGE
Part No.
SG120-XXK/883B
SG120-XXK
(See Notes Below)
Ambient
Temperature Range
Connection Diagram
-55°C to 125°C
-55°C to 125°C
GROUND
1
2
CASE IS VIN
VOUT
3-TERMINAL TO-66
METAL CAN
R-PACKAGE
SG120-XXR/883B
SG120-XXR
-55°C to 125°C
-55°C to 125°C
GROUND
1
2
CASE IS VIN
VOUT
3-PIN TO-39 METAL CAN
T-PACKAGE
SG120-XXT/883B
SG120-XXT
-55°C to 125°C
-55°C to 125°C
GROUND
1
VOUT
2
VIN
3
CASE IS VIN
3-PIN HERMETIC TO-257
IG-PACKAGE (Isolated)
SG120-XXIG/883B
SG120-XXIG
-55°C to 125°C
-55°C to 125°C
20-PIN CERAMIC (LCC)
LEADLESS CHIP CARRIER
L- PACKAGE
SG120-XXL/883B
SG120-XXL
-55°C to 125°C
-55°C to 125°C
Note 1.
2.
3.
4.
VOUT
VIN
GROUND
(Note 4)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
N.C.
VIN
N.C.
VOUT
VOUT
N.C.
VOUT SENSE
N.C.
N.C.
N.C.
3
2
1
20 19
4
18
5
17
6
16
7
15
8
14
9 10 11 12 13
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
N.C.
N.C.
N.C.
N.C.
GND
N.C.
GND
N.C.
N.C.
VIN
Contact factory for JAN and DESC product availability.
All parts are viewed from the top.
"XX" to be replaced by output voltage of specific fixed regulator.
Some products will be available in leadless chip carrier (LCC) and hermetic flat pack (F). Consult factory for price and availability
11/91 Rev 1.4 6/97
Copyright  1997
8
11861
L INF INITY
Western
Microelectronics
Inc.
∞ Garden Grove, CA 92841
Avenue
∞
(714) 898-8121
FAX: (714) 893-2570
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