Datasheet SG1532T-883B, SG1532T-DESC, SG1532J, SG1532J-883B, SG1532J-DESC Datasheet (Microsemi Corporation)

SG1532/SG2532/SG3532

PRECISION GENERAL-PURPOSE REGULATOR

DESCRIPTION

This monolithic integrated circuit is a versatile, general-purpose voltage
regulator designed as a substantially improved replacement for the popular
SG723 device. The SG1532 series regulators retain all the versatility of the
SG723 but have the added benefits of operation with input voltages as low as

4.5 volts and as high as 50 volts; a low noise, low voltage reference;
temperature compensated, low threshold current limiting; and protective
circuits which include thermal shutdown and independent current limiting of
both the reference and output voltages. A separate remote shutdown terminal
is included . In the dual-in-line package an open collector output is available
for low input-output differential applications.

These devices are available in both hermetic 14-pin cerdip and 10-pin TO­96 packages. In the T-package, these units are interchangeable with the LAS­1000 and LAS-1100 regulators. The SG1532 is rated for operation over the
ambient temperature range of -55°C to 125°C while the SG2532 and SG3532
are intended for industrial applications of 0°C to 70°C.

BLOCK DIAGRAM

FEATURES

••

• Input voltage range of 4.5V to 50V

••

••

• 2.5V low noise reference

••

••

• Independent shutdown terminal

••

••

• Improved line and load regulation

••

••

• 80mV current limit sense voltage

••

••

• Fully protected including thermal

••

shutdown

••

• Useful output current to 150mA

••

HIGH RELIABILITY FEATURES

-SG1532

♦♦

♦ Available to MIL-STD-883

♦♦
♦♦

♦ LMI level "S" processing available

♦♦

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ABSOLUTE MAXIMUM RATINGS (Note 1)

Pulse (50 ms) Input Voltage from VIN to V- .......................

Continuous Input Voltage from V

Input to Output Voltage Differential...................................

to V-............................

IN

Maximum Output Current ...........................................

Current from V

Note 1. Exceeding these ratings could cause damage to the device.

(J, L-Package only).............................

Z

50V
40V

40V
250mA
100mA

THERMAL DATA

SG1532/SG2532/SG3532

Current from V
Operating Junction Temperature

Hermetic (T, J, L-Packages).......................................

Storage Temperature Range ..........................

Lead Temperature (Soldering, 10 Seconds) .................

..........................................................

REF

-65°C to 150°C

25mA
150°C
300°C

J Package:

Thermal Resistance­Thermal Resistance-

T Package:

Thermal Resistance­Thermal Resistance-

L Package:

Thermal Resistance­Thermal Resistance-

Junction to Case, θ
Junction to Ambient, θ

Junction to Case, θ
Junction to Ambient, θ

Junction to Case, θ
Junction to Ambient, θ

JC

JC

JC

.................. 30°C/W

.............. 80°C/W

JA

.................. 25°C/W

........... 130°C/W

JA

.................. 35°C/W

........... 120°C/W

JA

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 θ
guidelines for the thermal performance of the device/pc-

numbers are meant to be

JA

board system. All of the above assume no ambient
airflow.

RECOMMENDED OPERATING CONDITIONS (Note 2)

Input Voltage Range

SG1532/SG2532 .................................................

SG3532 ..............................................................

Output Current Range .......................................

Note 2. Range over which the device is functional.

5V to 45V
5V to 36V

1mA to 100mA

Reference Current ........................................................

Zener Current (J & L-Packages only) ...........................

Operating Ambient Temperature Range

SG1532 ........................................................

SG2532/SG3532 ..............................................

-55°C to 125°C
0°C to 70°C

5mA

20mA

ELECTRICAL CHARACTERISTICS

(Unless otherwise specified, these specifications apply over the operating ambient temperatures for SG1532 with -55° C ≤ TA ≤ 125 °C, SG2532 with
0°C ≤ TA ≤ 70°C, SG3532 with 0°C ≤ TA ≤ 70°C, VIN = 10V, V
junction and case temperatures equal to the ambient temperature.)

Input Voltage Range

= 25°C

T

A

Output Voltage Range
Max Output Current
Min (V
Reference Voltage

Temperature Stability

IN

- V

OUT

)

(Note 4)

Ref Short Circuit Current
Line Regulation

(Note 3)

Load Regulation (Note 3)
Current Limit Sense Voltage

Shutdown Voltage Threshold
Shutdown Source Current
Zener Voltage
Standby Current
Error Amplifier Offset Voltage

R

= 0, V

SC

I

OUT

T

A

V

REF

8V ≤ V
8V ≤ V
1mA ≤ I
1mA ≤ I
R

SC

V

OUT

I

OUT

V

IN

OUT

= 100mA, TA = 25°C

= 25°C

= 0, TA = 25°C

≤ 40V

IN

≤ 20V, I

IN

≤ 25mA

OUT

≤ 100mA

OUT

= 100Ω, V

= high

= 10mA, (J and L-Packages only)

= 40V

Error Amplifier Input Bias

Current

= 5V, and I

OUT

Test ConditionsParameter

= 0, TA = 25°C

= 25mA

OUT

= 0V

OUT

= 1mA. Low duty cycle pulse testing techniques are used which maintains

OUT

SG1532/SG2532

SG3532

Min. Typ. Max. Min. Typ. Max.

4.5

4.7

2.0

2.40

2.35

0.06

0.40
100

6.0

2.50

0.005

0.005

0.01

0.002

0.002

0.08

0.70

175

1.7

15

200

6.4

2.5

2.0

4.0

50
50
38

250

2.0

2.60

2.65

0.015
25

0.01

0.02

0.004

0.005

0.10

1.0

300

7.2

3.5
10

15

4.5

4.7

2.0

2.40

2.35

0.06

0.40
100

6.0

175

1.7

2.50

0.005
15

0.005

0.01

0.002

0.002

0.08

0.70
200

6.4

2.5

2.0

4.0

40
40
38

250

2.0

2.60

2.65

0.015
25

0.02

0.03

0.004

0.005

0.10

1.0

300

7.2

3.5
15

20

Units

V
V
V

mA

V
V
V

%/°C

mA
%/V
%/V

%/mA
%/mA

V
V

µA

V
mA
mV

µA

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ELECTRICAL CHARACTERISTICS (continued)

SG1532/SG2532/SG3532

Test ConditionsParameter

Open Loop Gain
Ripple Rejection
Output Noise

(Note 4)

Long Term Stability (Note 4)

TA = 25°C
f = 120Hz, T
10Hz ≤ f ≤ 100KHz, T

= 30V, TA = 125°C

V

IN

= 25°C

A

= 25°C

A

Thermal Shutdown (Note 4)

Note 3. Applies for constant junction temperature. Temperature drift effects must be taken into account separately when the unit is operating under

conditions of high dissipation.

Note 4. These parameters, although guaranteed, are not tested in production.

SG1532/SG2532

Typ. Max.Min. Min.

66 68

66
50

0.3

1.0

175

SG3532

Typ. Max.

60 68

66
50

0.3

175

1.0

Units

dB
dB

µV

RMS

%/Khr

°C

CHARACTERISTIC CURVES

FIGURE 1.
STANDBY CURRENT

FIGURE 3.
CURRENT LIMITING

FIGURE 2.
MINIMUM INPUT-OUTPUT VOLTAGE

FIGURE 4.
RIPPLE REJECTION

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CHARACTERISTIC CURVES (continued)

SG1532/SG2532/SG3532

FIGURE 5.
FREQUENCY RESPONSE

APPLICATION INFORMATION

FIGURE 7 - 90% EFFICIENT LINEAR REGULATOR

Output Voltage = 5V Max Output Current = 3A
Min (VIN-V
Load Reg 0-2A = 20mV

Notes:

) at 2A = 0.4V Line Reg 6-30V = 10 mV

OUT

FIGURE 6.
TRANSIENT RESPONSE

FIGURE 8 - HIGH CURRENT REGULATOR WITH FOLDBACK

CURRENT LIMITING AND REMOTE SHUTDOWN

Output Voltage = 5V Line Reg 10-30V = 3mV
Max Output Current = 8A Load Reg 0-5A = 17mV

at No Load = 6.9V Short Circuit Current = 1.8A

Min V

IN

Min VIN at 5A = 8.2V

Note:

For output voltages above 8V and load currents
which allow PNP base current to be limited to

* 100Ω surge limiting resistor should be used for

output voltages above 8V.
25mA, the internal zener may be used, eliminat­ing the need for the two external diodes and the
divider on V

REF

.

RSC can be eliminated if the 200mA current limit on
V

is adequate. Overall current limiting is

OUT

dependent upon PNP Beta. For greater accu­racy, load currrent may be sensed in the ground
line.

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APPLICATION INFORMATION

SG1532/SG2532/SG3532

FIGURE 9 - HIGH EFFICIENCY LOW VOLTAGE REGULATOR

Output Voltage = 5V Line Reg 7-20V = 10mV
Max Output Current = 9A Load Reg 0-5A = 25mV

at 5A = 7.0V Constant Current Limiting

Min V

IN

FIGURE 10 - BASIC LOW CURRENT REGULATOR

V

OUT

C

C

I

OUT

CONNECTION DIAGRAMS & ORDERING INFORMATION (See Notes Below)

Ambient

Temperature Range

Connection Diagram

NON-INVERTING INPUT

(Notes 3 & 4)

INVERTING INPUT

14-PIN CERAMIC DIP
J - PACKAGE

10-PIN METAL CAN
T - PACKAGE

Part No.Package

SG1532J/883B -55°C to 125°C
SG1532J/DESC -55°C to 125°C
SG1532J -55°C to 125°C
SG2532J 0°C to 70°C
SG3532J 0°C to 70°C

SG1532T/883B -55°C to 125°C
SG1532T/DESC -55°C to 125°C
SG1532T -55°C to 125°C
SG2532T 0°C to 70°C
SG3532T 0°C to 70°C

R

 

REF

1+

 

R

1

2

= V
= 1000 pF

≤ 100mA

CURRENT LIMIT

CURRENT SENSE

INVERTING INPUT

NON-INVERTING

INPUT

ISC=
R

3

1

N.C.

2
3
4
5
6

V

REF

7

V-

CURRENT LIMIT

1

2

3

4

V

REF

Sense Voltage

R

SC

R1 R

2

=

R1+R

2

14

N.C.

13

FREQ. COMPENSATION

12

V

IN

11

V

C

10

V

OUT

9

V

Z

8

SHUTDOWN

10

9

8

7

6

5

V

OUT

V-

FREQ. COMPENSATIONCURRENT SENSE

& V

V

IN

C

SHUTDOWN

20-PIN CERAMIC
LEADLESS CHIP CARRIER
L- PACKAGE

Note 1. Contact factory for JAN and DESC product availablity.

2. All packages are viewed from the top.

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SG1532L/883B -55° C to 125°C
SG1532L -55°C to 125°C

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2. CURRENT LIMIT

3. CURRENT SENSE

4. N.C.

5. INVERTING INPUT

6. N.C.

7. N. I. INPUT

8. V

REF

9. N.C.

10. V-

Note 3. V

output is not available in T-package.

Z

4. Pin 5 is connected to case.

4
5
6
7
8

32120191. N.C.

9

10 11 12 13

11. N.C.

12. SHUTDOWN

13. V

18

Z

14. N.C.

17

15. V

OUT

16

16. N.C.

15

17. V

C

14

18. V

IN

19. N.C.

20. FREQ. COMP.

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