SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
DESCRIPTION
The SG117A Series are 3-terminal
positive adjustable voltage regulators
which offer improved performance
over the original 117 design. A major
feature of the SG117A is 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.
Additionally, 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.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATURES
1% output voltage tolerance
0.01%/V line regulation
0.3% load regulation
Min. 1.5A output current
Available in hermetic TO-220
HIGH RELIABILITY FEATURES-
SG117A/SG117
Available to MIL-STD-883 an d
DSCC SMD
MIL-M38510/11704BYA - JAN117K
MIL-M38510/11703BXA - JAN11 7T
LMI level "S" processing avail able
SCHEMATIC DIAGRAM
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SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
ABSOLUTE MAXIMUM RATINGS
Power Dissipation............................................................................................................................................................Internally Limited
Input to Output Voltage Differential......................................................................................................................................................40V
Storage Temperature Range.................................................................................................................................................-65°C to 150°C
Operating Junction Temperature.........................................................................................................................................................150°C
Lead Temperature (Soldering 10 seconds)..........................................................................................................................................300°C
Note: 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
K 3 Terminal TO-3 Metal Can
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 3.0°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 35°C/W
F 10-Pin Flatpack
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 80°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 145°C/W
R 3 Terminal TO-66 Metal Can
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 5.0°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 40°C/W
T 3-Pin TO-39 Metal Ca n
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 15°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 120°C/W
G 3-Pin TO-257 Hermetic
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 3.5°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 42°C/W
IG 3-Pin TO-257 Hermetic (Isolated)
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 3.5°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 42°C/W
L 20-Pin Ceramic (LCC) Leadle ss
THERMAL RESISTANCE-JUNCTION TO CASE, θJC 35°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT, θJA 120°C/W
Junction Temperature Calculation: TJ = TA + (PD x θJA).
The θJA numbers are guidelines for the thermal performance of the device/pc-board system. All of the
above assume no ambient airflow.
P
PA
AC
CK
KA
AG
GE
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AT
TA
A
SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
RECOMMENDED OPERATING CONDITIONS
SGx17x
Parameter Min Typ Max
Units
Input Voltage Range VOUT + 3.5 37 V
Operating Junction Temperatu r e Range SG117A / SG117 -55 150 °C
Operating Junction Temperatu r e Range SG217A / SG217 -25 150 °C
Operating Junction Temperature Range SG317A / SG317 0 125 °C
Note 2: Range Over which the device is functional.
Note 3: These ratings are applicable for junction temperatures of less than 150°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply over the full operating ambient temperature for the SG117A / SG117 with -55°C <
TA < 125°C, the SG217A / SG217 with -25°C < TA < 85°C, and the SG317A / SG317 with 0°C < TA < 70°C, VIN – VOUT = 5.0V and for
IOUT = 500mA (K,R, G, and IG) and IOUT = 100mA (T, F, 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, R, G, and IG packages. IMAX is
1.5A for the K, R, G, and IG packages and 500m for the T, F, and L packages. Low duty cycle pulse testing techniques are used which
maintains junction and case temperatures equal to the ambient temperature.
SG117A / SG217A SG117 / SG217 Units
Parameter Test Conditions Min Typ Max Min Typ Max
Reference Voltage IOUT = 10mA, TA = 25°C 1.238 1.250 1.262 V
3V < (VIN – VOUT ) < 40V, P < PMAX
10mA < IOUT < IMAX 1.225 1.250 1.270 1.20 1.25 1.30 V
Line Regulation (Note 4) 3V < (VIN – VOUT) < 40V, IL = 10mA
T
A = 25°C 0.005 0.01 0.1 0.02 %/V
T
A = TMIN to TMAX 0.01 0.02 0.02 0.05 %/V
Load Regulation (Note 4) 10mA < IOUT < IMAX
V
OUT < 5V, TA = 25°C 5 15 5 15 mV
V
OUT > 5V, TA =25°C 0.1 0.3 0.1 0.3 %
V
OUT < 5V 20 50 20 50 mV
V
OUT > 5V 0.3 1 0.3 1 %
Thermal Regulation (Note 5) TA = 25°C, 20ms pulse 0.002 0.02 0.03 0.07 %/W
V
OUT = 10V, f = 120Hz
C
ADJ = 1µF, TA = 25°C 65 65 dB
C
ADJ = 10µF 66 80 66 80 dB
Adjust Pin Current 50 100 50 100 µA
Adjust Pin Current Change 10mA < IOUT < IMAX, 2.5V < (VIN – VOUT) < 40V 0.2 5 0.2 5 µA
Minimum Load Current (VIN – VOUT) = 40V 3.5 5 3.5 5 mA
Current Limit (VIN – VOUT) < 15V
K, P, R, G, IG Packages 1.5 2.2 1.5 2.2 A
T, L Packages 0.5 0.8 0.5 0.8 A
(VIN – VOUT) = 40V, TJ = 25°C
K, P, R, G, IG Packages 0.3 0.4 0.3 0.4 A
T, L Packages 0.15 0.2 0.15 0.2 A
Temperature Stability (Note 5) 1 2 1 %
Long Term Stability (Note 5) TA = 125°C, 1000 Hours 0.3 1 0.3 1 %
RMS Output Noise (% of VOUT) TA = 25°C, 10Hz < f < 10kHz (Note 5) 0.001 0.001 %
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SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
ELECTRICAL CHARACTERISTICS (CONTINUED)
Unless otherwise specified, these specifications apply over the full operating ambient temperature for the SG117A / SG117 with -55°C <
TA < 125°C, the SG217A / SG217 with -25°C < TA < 85°C, and the SG317A / SG317 with 0°C < TA < 70°C, VIN – VOUT = 5.0V and for
IOUT = 500mA (K,R, G, and IG) and IOUT = 100mA (T, F, 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, R, G, and IG packages. IMAX is
1.5A for the K, R, G, and IG packages and 500m for the T, F, and L packages. Low duty cycle pulse testing techniques are used which
maintains junction and case temperatures equal to the ambient temperature.
SG317A SG317 Units
Parameter Test Conditions Min Typ Max Min Typ Max
Reference Voltage IOUT = 10mA, TA = 25°C 1.238 1.250 1.262 V
3V < (VIN – VOUT ) < 40V, P < PMAX
10mA < IOUT < IMAX 1.225 1.250 1.270 1.20 1.25 1.30 V
Line Regulation (Note 4) 3V < (VIN – VOUT) < 40V, IL = 10mA
T
A = 25°C 0.005 0.01 0.1 0.04 %/V
T
A = TMIN to TMAX 0.01 0.02 0.02 0.07 %/V
Load Regulation (Note 4) 10mA < IOUT < IMAX
V
OUT < 5V, TA = 25°C 5 25 5 25 mV
V
OUT > 5V, TA =25°C 0.1 0.5 0.1 0.5 %
V
OUT < 5V 20 50 20 70 mV
V
OUT > 5V 0.3 1 0.3 1.5 %
Thermal Regulation (Note 5) TA = 25°C, 20ms pulse 0.002 0.02 0.03 0.07 %/W
Ripple Rejection VOUT = 10V, f = 120Hz
C
ADJ = 1µF, TA = 25°C 65 65 dB
C
ADJ = 10µF 66 80 66 80 dB
Adjust Pin Current TA = 25°C 50 100 50 100 µA
Adjust Pin Current Change 10mA < IOUT < IMAX, 2.5V < (VIN – VOUT) < 40V 0.2 5 0.2 5 µA
Minimum Load Current (VIN – VOUT) = 40V 3.5 5 3.5 5 mA
Current Limit (VIN – VOUT) < 15V
K, P, R, G, IG Packages 1.5 2.2 1.5 2.2 A
T, L Packages 0.5 0.8 0.5 0.8 A
(VIN – VOUT) = 40V, TJ = 25°C
K, P, R, G, IG Packages 0.3 0.4 0.3 0.4 A
T, L Packages 0.15 0.2 0.15 0.2 A
Temperature Stability (Note 5) 1 2 1 %
Long Term Stability (Note 5) TA = 125°C, 1000 Hours 0.3 1 0.3 1 %
RMS Output Noise (% of VOUT) TA = 25°C, 10Hz < f < 10kHz (Note 5) 0.001 0.001 %
NOTES
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SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
CHARACTERISTIC CURVERS
Figure 1 – Output Voltage Deviation vs.
Temperature
Figure 2 – Output Current vs. Input / Output
Differential
Figure 3 – Adjustable Current vs. Temperature
Figure 4 – Input / Output Differential vs.
Temperature
Figure 5 – Reference Voltage vs. Temperature
Figure 6 – Quiescent Current vs. Input / Output
Differential
Figure 7 – Ripple Rejection vs. Output Voltage
Figure 8 – Ripple Rejection vs. Frequency
Figure 9 – Ripple Rejection vs. Output Current
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SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
CHARACTERISTIC CURVERS
Figure 10 – Output Impedance vs. Frequency
Figure 11 – Line Transient Response
Figure 12 – Load Transient Response
Figure 13 – Output Impedance vs. Frequency
Figure 14 – Line Transient Response
Figure 15 – Load Transient Response
Figure 16 – Output Voltage Error
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SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
APPLICATION INFORMATION
GENERAL
The SG117A develops a 1.25V reference voltage
between the output and the adjustable terminal (see Figure
1). By placing a resistor, R1 between these two terminals, a
constant current is caused to flow through R1 and down
through R2 to set the overall output voltage, Normally this
current is the specified minimum load current of 5mA or
10mA.
2ADJ
1
2
REFOUT RI
R
R
1VV •+= ⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Figure 17 – Basic Regulator Circuit
Because IADJ is very small and constant when compared
with the current through R1, it represents a small error and
can usually be ignore d.
It is easily seen from the above equation, that even if the
resistors were of exact value, the accuracy of the output is
limited by the accuracy of VREF. Earlier adjustable
regulators had a reference tolerance of ±4%. This tolerance
is dangerously close to the ±5% supply tolerance required
in many logic and analog systems. Further, many 1%
resistors can drift 0.01%°C adding another 1% to the output
voltage tolerance.
For example, using 2% resistors and ±4% tolerance for
VREF, calculations will show that the expected range of a
5V regulator design would be 4.66V < VOUT < 5.36V or
approximately ±7%. If the same example were used for a
15V regulator, the expected tolerance would be ±8%. With
these results most applications require some method of
trimming, usually a trim pot. This solution is ex pensive and
not conducive to volume production.
One of the enhancements of Silicon General’s adjustable
regulators over existing devices is tightened initial
tolerance. This allows relatively inex pensive 1% or 2% film
resistors to be used for R1 and R2 while setting output
voltage within an acceptable tolerance range.
With a guaranteed 1% reference, a 5V power supply
design, using ±2% resistors, would have a worse case
manufacturing tolerance of ±4%. If 1% resistors were used,
the tolerance would drop to ±2.5%. A plot of the worst case
output voltage tolerance as a function of resistor tolerance
is shown on the front page.
For convenience, a table of standard 1% resistor values
is shown below
Table of ½% and 1% Standard Resistance Values
1.00 1.47 2.15 3.16 4.64 6.81
1.02 1.50 2.21 3.24 4.75 6.98
1.05 1.54 2.26 3.32 4.87 7.15
1.07 1.58 2.32 3.40 4.99 7.32
1.10 1.62 2.37 3.48 5.11 7.50
1.13 1.65 2.43 3.57 5.23 7.68
1.15 1.69 2.49 3.65 5.36 7.87
1.18 1.74 2.55 3.74 5.49 8.06
1.21 1.78 2.61 3.83 5.62 8.25
1.24 1.82 2.67 3.92 5.76 8.45
1.27 1.87 2.74 4.02 5.90 8.66
1.30 1.91 2.80 4.12 6.04 8.87
1.33 1.96 2.87 4.22 6.19 9.09
1.37 2.00 2.94 4.32 6.34 9.31
1.40 2.05 3.01 4.42 6.49 9.53
1.43 2.10 3.09 4.53 6.65 9.76
Standard Resistance Values are obtained from the
Decade Table by multiplying by multiples of 10. As an
example: 1.21 can represent 1.21Ω, 12.1Ω, 121Ω, 1.21kΩ,
etc.
Figure 18 – Connections for Best Load Regulation
Figure 19 – 1.2V – 25V Adjustable Regulator
A
AP
PP
PL
LI
IC
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TI
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ON
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SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
APPLICATION INFORMATION (CONTINUED)
BYPASS CAPACITORS
Input bypassing using a 1 μF tantalu m or 25μF electroly tic is
recommended when the input filter capacitors are more than 5
inches from the device. A 0.1µF bypass capacitor on the
ADJUST pin is required if the load current varies by more than
1A/µsec. Improved ripple rejection (80dB) can be
accomplished by adding a 10μF capacitor from the adjust pin
to ground. For improved AC transient response and to prevent
the possibility of oscillation due to unknown reactive load, a
1μF capacitor is also recommended at the output. Because of
their low impedance at high frequencies, the best type of
capacitor to use is solid tantalum.
Figure 20 – Remote Sensing
Figure 21 – Improving Ripple Rejection
LOAD REGULATION
Because the SG117A is a three-terminal device, it is not
possible to provide true remote load sensing. Load regulation
will be limited by the resistance of the wire connecting the
regulator to the load. For the data sheet specification,
regulation is measured at the bottom of the package. Negative
side sensing is a true K elvin connection, with the botto m of th e
output divider returned to the negative side of the load.
Although it may not be immediately obvious, best load
regulation is obtained when the top of the divider is connecte d
directly to the case, not to the load. This i s illustrated in Figure
18. If R1 were connected to the load, the effective resistance
between the regulator and the load would be
Resistance Line ParasiticR,
R
RR
RP
1
12
P=
+
•⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
Connected as shown, RP is not multiplied by the divider
ratio. RP is about 0.004Ω per foot using 16 gauge wire. This
translates to 4mV/ft. at 1A load current, so it is important to
keep the positive lead between regulator and load as short as
possible.
Figure 22 – 5V Regulator with Shut Down
Figure 23 – 21V Programming Supply for UV Prom/ EEPROM
Figure 24 – 2816 EEPROM Supply Programmer for Read / Write
Control
Figure 25 – Temperature Compensated Lead Acid Battery
Charger
A
AP
PP
PL
LI
IC
CA
AT
TI
IO
ON
NS
S
SG117 / 217 / 317 / 117A / 217A / 317A
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
Copyright © 1994
Rev. 1.3, 2006-02-08
WWW.Microsemi .COM
1.5A Three Terminal Adj. Voltage Regulator
TM ®
CONNECTION DIAGRAMS & ORDERING INFORMATION (SEE NOTES BELOW)
Package Part No.
Ambient
Temperature Range Connection Diagram
SG117AK/883B -55°C to 125°C
SG117AK/DESC -55°C to 125°C
SG117AK -55°C to 125°C
SG217AK -25°C to 85°C
SG317AK 0°C to 70°C
SG117K/883B -55°C to 125°C
JAN117K -55°C to 125°C
SG117K/DESC -55°C to 125°C
SG117K -55°C to 125°C
SG217K -25°C to 85°C
3-Terminal TO-3 Metal Can
K – Package
SG317K 0°C to 70°C
ADJUSTMENT
VIN
1
2
Case is VOUT
SG117AR/883B -55°C to 125°C
SG117AR/DESC -55°C to 125°C
SG117AR -55°C to 125°C
SG217AR -25°C to 85°C
SG317AR 0°C to 70°C
SG117R/883B -55°C to 125°C
SG117AR/DESC -55°C to 125°C
SG117R -55°C to 125°C
SG217R -25°C to 85°C
3-Pin TO-66 Metal Can
R – Package
SG317R 0°C to 70°C
ADJUSTMENT
VIN
1
2
Case is VOUT
SG117AT/883B -55°C to 125°C
SG117AT/DESC -55°C to 125°C
SG117AT -55°C to 125°C
SG217AT -25°C to 85°C
SG317AT 0°C to 70°C
SG117T/883B -55°C to 125°C
JAN117T -55°C to 125°C
SG117T/DESC -55°C to 125°C
SG117T -55°C to 125°C
SG217T -25°C to 85°C
3-Pin TO-39 Metal Can
T – Package
SG317T 0°C to 70°C
1
2 3
VIN
ADJUST VOUT
Case is VOUT
SG117AIG/883B -55°C to 125°C
SG117AIG/DESC -55°C to 125°C
SG117AIG -55°C to 125°C
SG117IG/883B -55°C to 125°C
SG117IG/DESC -55°C to 125°C
3-Pin Hermetic TO-257
IG – Package (Isolated)
SG117IG -55°C to 125°C
VIN
VOUT
ADJUST
SG117AL/883B -55°C to 125°C
SG117AL/DESC -55°C to 125°C
SG117AL -55°C to 125°C
SG117L/883B -55°C to 125°C
SG117L/DESC -55°C to 125°C
SG117L -55°C to 125°C
20-Pin Ceramic (LCC) Leadless Chip
Carrier
L – Package
VOUT SENSE
N.C.
N.C.
N.C.
VIN
N.C.
N.C.
N.C.
N.C.
ADJUST
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
VOUT
N.C.
123
4
5
6
7
8
910111213
14
15
16
17
18
19
20
SG117AG/883B -55°C to 125°C
SG117AG/DESC -55°C to 125°C
SG117AG -55°C to 125°C
SG117G/883B -55°C to 125°C
3-Pin Hermetic TO-257
G – Package (Case is VOUT)
SG117G -55°C to 125°C
VIN
VOUT
ADJUST
Case is VOUT
SG117AF -55°C to 125°C
SG117AF/883B -55°C to 125°C
SG117F -55°C to 125°C
10-Pin Flatpack
F – Package SG117F/883B -55°C to 125°C
1
2
3
4
56
7
8
9
10 N.C.
N.C.
VOUT
N.C.
VOUT
ADJUST
VIN
VIN
N.C.
N.C.
Note 1: Contact factory for JAN and DESC product availability.
2: All parts are viewed from the top.
3: Both inputs and outputs must be externally connected together at the device terminals.
4: For normal operation, the SENSE pin must be externally connected to the load.
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