SG117A/SG117
1.5A Three Terminal Adjustable Voltage Regulator
Description
The SG117 and SG117A are 3-terminal positive
adjustable voltage regulators which offer improved
performance over the original 117 design. A major
feature of the SG117A is a reference voltage tolerance
guaranteed within ± 1%, allowing an overall power
supply tolerance to be better than 3% using
inexpensive 1% resistors. Line and load regulation
performance has been improved as well.
Moreover, the SG117A reference voltage is guaranteed
not to exceed 2% when operating over the full load, line
and power dissipation conditions.
The SG117A
adjustable regulators offer an improved solution for all
positive voltage regulator requirements with load
currents up to 1.5A.
In addition to replacing many fixed regulators, the
SG117/A can be used in a variety of other applications
due to its ‘floating’ design as long as the input-to-output
differential maximum is not exceeded, such as a
current source. A higher voltage version is available
the SG117AHV and SG117HV which offers input
voltage up to 60V.
Features
Adjustable Output Down to 1.25V
1% Output Voltage Tolerance
0.01%/V Line Regulation
0.3% Load Regulation
Min. 1.5A Output Current
Typical 80dB Ripple Rejection
Available in Hermetic TO-257
High Reliability Features –
SG117A/SG117
Available to MIL-STD-883, ¶1.2.1
MSC-AMS level "S" Processing Available
Available to DSCC
– Standard Microcircuit Drawing (SMD)
MIL-M-38510/7703405XA SG117AT-JAN
MIL-M-38510/7703405YA SG117AK-JAN
Schematic Diagram
Figure 1 ·
Block Diagram
January 2015 Rev. 1.4
www.microsemi.com
© 2015 Microsemi Corporation- Analog Mixed Signal
1
1.5A 3-Terminal Adjustable Voltage Regulator
Connection Diagrams and Ordering Information
Ambient
Temperature
Type
Package
Part Number
SG117AK
SG117AK-883B
SG117AK-DESC
-55°C to
125°C
K
3-TERMINAL
METAL CAN
1
Packaging
Type
Connection Diagram
ADJUSTMENT
SG117K
SG117K-883B
SG117K-DESC
SG117K-JAN
SG117AT
SG117AT-883B
SG117AT-DESC
TO-3
2
V
IN
-55°C to
125°C
T
3-TERMINAL
METAL CAN
V
IN
1
SG117T
SG117T-883B
SG117T-DESC
SG117T-JAN
SG117AIG
TO-39
ADJUST
2
3
V
OUT
-55°C to
125°C
IG
3-Pin
HERMETIC
Package
(Isolated)
SG117AIG-883B
V
IN
SG117AIG-DESC
TO-257
SG117IG
SG117IG-883B
SG117IG-DESC
SG117AG
SG117AG-883B
V
OUT
ADJUST
Case is Isolated
-55°C to
125°C
G
3-Pin
HERMETIC
Package
V
IN
SG117AG-DESC
TO-257
SG117G
SG117G-883B
SG117G-DESC
V
OUT
ADJUST
Case is V
OUT
2
Connection Diagrams and Ordering Information
Connection Diagrams and Ordering Information
Ambient
Temperature
Type
Package
Part Number
Packaging
Type
Connection Diagram
SG117AL
SG117AL-883B
-55°C to
125°C
L
20-Pin
Ceramic
SG117AL-DESC
SG117L
SG117L-883B
SG117L-DESC
Notes:
1. Contact factory for JAN and DESC part availability.
2. All parts are viewed from the top.
3. For devices with multiple inputs and outputs both must be externally connected together at the device terminals.
4. For normal operation, the SENSE pin must be externally connected to the load.
5. These Hermetic Packages use Sn63/Pb37 hot solder dip lead finish, contact factory for availability of RoHS versions.
CLCC
3
1.5A 3-Terminal Adjustable Voltage Regulator
Absolute Maximum Ratings
Parameter
Power Dissipation
Input to Output Voltage Differential
Storage Temperature Range
Maximum Operating Junction Temperature
Value
Internally Limited
40
-65 to 150
150
V
°C
°C
Units
Lead Temperature (Soldering, 10 seconds)
300
°C
Notes:
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into,
negative out of specified terminal.
Thermal Data
Parameter
K Package: 3 Terminal TO-3 Metal Can
Thermal Resistance-Junction to Case, θ
JC
Thermal Resistance-Junction to Ambient, θ
JA
T Package: 3-Pin TO-39 Metal Can
Thermal Resistance-Junction to Case, θ
JC
Thermal Resistance-Junction to Ambient, θ
JA
IG Package: 3-Pin TO-257 Hermetic (Isolated)
Thermal Resistance-Junction to Case, θ
JC
Thermal Resistance-Junction to Ambient, θ
JA
G Package: 3-Pin TO-257 Hermetic
Thermal Resistance-Junction to Case, θ
JC
Thermal Resistance-Junction to Ambient, θ
JA
L Package: 20-Pin Ceramic (LCC) Leadless
Thermal Resistance-Junction to Case, θ
JC
35
°C/W
°C/W
Thermal Resistance-Junction to Ambient, θ
JA
120
Notes:
1. Junction Temperature Calculation: T
J
= T
A
+ (P
D
x θ
JA
).
2. The above numbers for θ
JC
are maximums for the limiting thermal resistance of the package in a standard mounting
configuration. The θ
JA
numbers are meant to be guidelines for the thermal performance of the device/pcboard system. All of
the above assume no ambient airflow.
3.5
42
°C/W
°C/W
3.5
42
°C/W
°C/W
15
120
°C/W
°C/W
3
35
°C/W
°C/W
Value
Units
Recommended Operating Conditions
Parameter
Input Voltage Range
Operating Ambient Temperature Range
SG117A / SG117
Note:
Range over which the device is functional.
-55 to 125
°C
Value
V
OUT
+3.5V to 37
Units
V
4
Electrical Characteristics
Electrical Characteristics
Unless otherwise specified, these characteristics apply over the full operating ambient temperature for the
SG117A / SG117 with -55°C < T
A
< 125°C, V
IN
– V
OUT
= 5.0V and for I
OUT
= 500mA (K, G, and IG) and I
OUT
=
100mA (T, and L packages). Although power dissipation is internally limited, these specifications are
applicable for power dissipations of 2W for the T, and L packages, and 20W for the K, G, and IG packages.
I
MAX
is 1.5A for the K, G, and IG packages and 500mA for the T, and L packages. Low duty cycle pulse
testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.
SG117A
Parameter
Test Condition
Min
Reference Section
Reference Voltage
Output Section
3V ≤ (V
IN
– V
OUT
) ≤ 40V,
I
L
= 10mA
T
A
= 25°C
T
A
= T
MIN
to T
MAX
10mA ≤ I
OUT
≤ I
MAX
V
OUT
≤ 5V, T
A
= 25°C
Load Regulation¹
V
OUT
> 5V, T
A
= 25°C
V
OUT
≤ 5V
V
OUT
> 5V
Thermal Regulation²
Ripple Rejection
T
A
= 25°C, 20ms pulse
V
OUT
= 10V, f = 120Hz
C
ADJ
= 1µF, T
A
= 25°C
C
ADJ
= 10µF
Minimum Load Current
Current Limit
(V
IN
– V
OUT
) = 40V
(V
IN
– V
OUT
) ≤ 15V
K, P, G, IG Packages
T, L Packages
(V
IN
– V
OUT
) = 40V, T
J
= 25°C
K, P, G, IG Packages
T, L Packages
Temperature Stability²
Long Term Stability²
RMS Output Noise (% of
V
OUT
)²
Adjust Section
Adjust Pin Current
Adjust Pin Current
Change
T
A
= 125°C, 1000 Hours
T
A
= 25°C, 10Hz ≤ f ≤ 10kHz
0.3
0.15
0.4
0.2
1
0.3
0.001
2
1
0.3
0.15
0.4
0.2
1
0.3
0.001
1
%
A
1.5
0.5
2.2
0.8
1.5
0.5
2.2
0.8
A
66
65
80
3.5
5
66
65
80
3.5
5
dB
mA
5
0.1
20
0.3
0.002
15
0.3
50
1
0.02
5
0.1
20
0.3
0.03
15
0.3
50
1
0.07
mV
%
mV
%
%/W
I
OUT
= 10mA, T
A
= 25°C
3V ≤ (V
IN
– V
OUT
) ≤ 40V,
P ≤ P
MAX
10mA ≤ I
OUT
≤ I
MAX
1.238
1.225
1.250 1.262
1.250 1.270
1.20
1.25
1.30
V
Typ
Max
Min
Typ
Max
SG117
Units
Line Regulation¹
0.005
0.01
0.01
0.02
0.01
0.02
0.02
0.05
%/V
50
100
50
100
µA
10mA < I
OUT
< I
MAX
,
0.2
5
0.2
5
2.5V < (V
IN
– V
OUT
) < 40V
¹Regulation
is measured at constant junction temperature, using pulse testing with low duty cycle. Changes in output voltage
due to heating effects are covered under the specification for thermal regulation.
²These parameters, although guaranteed, are not tested in production.
5
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