DUAL COMBINATION
VOLTAGE REGULATOR
Semelab Limited reserves the right to change test conditions, parameter limits and package dimensions without notice.
Information furnished by Semelab is believed to be both accurate and reliable at the time of going to press. However
Semelab assumes no responsibility for any errors or omissions discovered in its use. Semelab encourages customers to
verify that datasheets are current before placing orders.
Semelab Limited
Semelab LimitedSemelab Limited
Semelab Limited
Coventry Road, Lutterworth, Leicestershire, LE17 4JB
Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com Website: http://www.semelab-tt.com
Document Number 9473
Issue 1
Page 1 of 4
IP815905DD
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C unless otherwise stated)
Symbol
SymbolSymbol
Symbol Parameter
ParameterParameter
Parameter +15V Side
+15V Side+15V Side
+15V Side
-
--
-5V Side
5V Side5V Side
5V Side
VIN DC Input Voltage 35V -35V
IO Output Current Internally Limited
PD Power Dissipation Internally Limited
TJ Operating Junction Temperature Range -55 to +150°C
Tstg Storage Temperature Range -65 to +150°C
DESCRIPTION
• Fixed dual +15V / -
5V voltage regulator. The voltage regulator
employs internal current limiting, thermal shut down and safe
operating area protection making it extremely robust.
FEATURES
• Output Current Up To 1.0A
• Output Voltages Of +15V / -5V
• Internal Thermal Overload Protection
• Output Short Circuit Protected
• Hermetic Metal TO258D (MO-078AA) Package
• Isolated Case
• Screening Options Available
APPLICATIONS
• System Power Supplies
• Precision Voltage / Current Regulators
DUAL COMBINATION
VOLTAGE REGULATOR
Semelab Limited
Semelab LimitedSemelab Limited
Semelab Limited
Coventry Road, Lutterworth, Leicestershire, LE17 4JB
Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com Website: http://www.semelab-tt.com
Document Number 9473
Issue 1
Page 2 of 4
ELECTRICAL CHARACTERISTICS(1)
(TC = 25°C unless otherwise stated)
+15V SIDE
Symbols Parameters Test Conditions Min.
Typ Max.
Units
IOUT = 10mA VIN = 23V
14.4 15 15.6
VO Output Voltage
5mA ≤ IO ≤ IMAX, P ≤ PMAX,
VIN = 17.9V to 30V
•
14.25 15.75
VO Low Supply
5mA ≤ IO ≤ IMAX, P ≤ PMAX,
VIN = 17.5V to 30V
14.25 15.75
V
17.5V ≤ VIN ≤ 30V
150
IO = 0.5 IMAX
17.9V ≤ VIN ≤ 30V
●
150
17.5V ≤ VIN ≤ 30V
150
60
∆VO Line Regulation (2)
IO ≤ IMAX
20V ≤ VIN ≤ 26V
●
75
5mA ≤ IO ≤ IMAX
●
150
∆VO Load Regulation (2)
VIN = 23V
0.25A ≤ IO ≤ 0.75A
75
mV
6
IQ Quiescent Current
VIN = 23V IO ≤ IMAX
●
7
VIN = 23V 5mA ≤ IO ≤ IMAX
0.5
17.9V ≤ VIN ≤ 30V
IO ≤ IMAX
●
0.8
18.5V ≤ VIN ≤ 30V
0.8
∆IQ Quiescent Current Change
17.5V ≤ VIN ≤ 30V
IO ≤ 0.5 IMAX
●
1.0
mA
VN Output Noise Voltage (3)
VIN = 23V 10Hz ≤ f ≤ 100KHz
90 µV
f = 120Hz IO ≤ IMAX
60
O
IN
V
V
∆
∆
Ripple Rejection
18.5V ≤ VIN≤ 28.5V
IO ≤ 0.5 IMAX
●
60
dB
VD Drop Out Voltage
IO = IMAX
2 V
RO Output Resistance (3)
f = 1.0KHz
9 m
Ω
ISC Short-Circuit Current
VIN = 35V
0.6 1.2
IPK Short-Circuit Current
VIN = 23V
2.4 3.3
A
Average TC of Vo (3)
IO = 5mA
1.8 mV/°C
VIN Input Voltage Required To
Maintain Line Regulation
IO ≤ IMAX
17.7 V
Notes
NotesNotes
Notes
The ● denotes the specifications which apply over the full operating temperature range.
(1) All characteristics are measured with a capacitor across the input of 0.22µF and a capacitor across the output of 0.1µF. Although power
dissipation is internally limited, theses specifications are applicable to maximum power dissipation PMAX = 20W, IMAX = 1.0A, TJ = 25°C
(2) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating
effects must be taken into account separately.
(3) By design, not a production test.
DUAL COMBINATION
VOLTAGE REGULATOR
Semelab Limited
Semelab LimitedSemelab Limited
Semelab Limited
Coventry Road, Lutterworth, Leicestershire, LE17 4JB
Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com Website: http://www.semelab-tt.com
Document Number 9473
Issue 1
Page 3 of 4
ELECTRICAL CHARACTERISTICS(4)
(TC = 25°C unless otherwise stated)
-5V SIDE
Symbols Parameters Test Conditions Min.
Typ Max.
Units
IOUT = 500mA VIN = -10V
-4.9 -5 -5.1
VO Output Voltage
5mA ≤ IO ≤ IMAX, P ≤ PMAX,
VIN = -7.5V to -20V
•
-4.8 -5.2
VO Low Supply
5mA ≤ IO ≤ IMAX, P ≤ PMAX,
VIN = -7V to -20V
-4.75 -5.25
V
-7V ≤ VIN ≤ -25V
25
IO = 0.5 IMAX
-7.5V ≤ VIN ≤ -20V
●
50
25
∆
VO Line Regulation (5)
IO ≤ IMAX -8V ≤ VIN ≤ -12V
●
50
5mA ≤ IO ≤ IMAX
●
50
∆
VO Load Regulation (5)
VIN = -10V
0.25A ≤ IO ≤ 0.75A
25
mV
1.9
IQ Quiescent Current
VIN = -10V IO ≤ 0.5 IMAX
●
2
0.4
VIN = -10V 5mA ≤ IO ≤ IMAX
●
0.5
-7V ≤ VIN ≤ -25V
0.4
∆I
Q Quiescent Current Change
-8V ≤ VIN ≤ -25V
IO ≤ 0.5 IMAX
●
1.0
mA
VN Output Noise Voltage (6)
VIN = -10V 10Hz ≤ f ≤ 100KHz
40
µ
V
f = 120Hz IO ≤ IMAX
54
O
IN
V
V
∆
∆
Ripple Rejection
-8V ≤ VIN ≤ -18V IO ≤ 0.5 IMAX
●
54
dB
VD Drop Out Voltage
IO = IMAX
1.1 V
RO Output Resistance (6)
f = 1.0KHz
5 m
Ω
ISC Short-Circuit Current
VIN = -35V
0.6 1.2
IPK Short-Circuit Current
VIN = -10V
2.4 3.3
A
Average TC of Vo (6)
IO = 5mA
0.2 mV/°C
VIN Input Voltage Required To
Maintain Line Regulation
IO ≤ IMAX
-7.3 V
Notes
NotesNotes
Notes
The ● denotes the specifications which apply over the full operating temperature range.
(4) All characteristics are measured with a capacitor across the input of 2.2µF and a capacitor across the output of 1.0µF. Although power
dissipation is internally limited, theses specifications are applicable to maximum power dissipation PMAX = 20W, IMAX = 1.0A, TJ = 25°C
(5) Regulation is measured at constant junction temperature, using pulse testing at a low duty cycle. Changes in output voltage due to heating
effects must be taken into account separately.
(6) By design, not a production test.
DUAL COMBINATION
VOLTAGE REGULATOR
Semelab Limited
Semelab LimitedSemelab Limited
Semelab Limited
Coventry Road, Lutterworth, Leicestershire, LE17 4JB
Telephone +44 (0) 1455 556565 Fax +44 (0) 1455 552612 Email: sales@semelab-tt.com Website: http://www.semelab-tt.com
Document Number 9473
Issue 1
Page 4 of 4
APPLICATIONS INFORMATION
IP815905DD
Common
+Vin
-Vin -5Vout
+15Vout
+
+
0.22uF
Cin
+
1.0uF
Cout
Common
+Vin
-Vin -5V
+15V
+
MECHANICAL DATA
Dimensions in mm (inches)
TO258D (MO-078AA)
Pin 1 = +Vin Pin 2 = +15Vout Pin 3 = Common Pin 4 = -Vin Pin 5 = -5Vout
Fixed Output Regulator
(a) Cin required if regulator is located an appropriate distance from power supply filter.
(b) Cout required for stability for given value.
(c) For output capacitance in excess of 100µF, a high current diodes from input to output
(ie 1N4001) will protect the regulator from momentary input shorts
17.653 (0.695)
17.399 (0.685) 4.191 (0.165)
3.937 (0.155) DIA.
0.889 (0.035)
0.635 (0.025)
2.54
(0.100) Typ.
6.858 (0.270)
6.096 (0.240)
1.143 (0.045)
0.889 (0.035)
0.051 (0.002)
Max.
3.556
(0.140) Typ.
13.970 (0.550)
13.462 (0.530)
17.958 (0.707)
17.704 (0.697)
21.209 (0.835)
20.701 (0.815)
19.05 (0.750)
12.70 (0.500)
1 2 3 4 5
