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LM7905 Datasheet Preview

LM7905 Datasheet

1.5 AMP NEGATIVE VOLTAGE REGULATOR

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LM120A-05
LM120-05
LM7905A
LM7905
1.5 AMP
NEGATIVE
VOLTAGE REGULATOR
12
3
Pin 1 – Ground
Pin 2 – VOUT
Case – VIN
K Package – TO–3
1 23
12
3
Pin 1 – Ground
Pin 2 – VOUT
Case – VIN
R Package – TO–66
!
FEATURES
OUTPUT VOLTAGE OF -5V
0.7% / V LINE REGULATION AVAILABLE
0.5% / A LOAD REGULATION AVAILABLE
THERMAL OVERLOAD PROTECTION
SHORT CIRCUIT PROTECTION
OUTPUT TRANSISTOR SOA PROTECTION
1% VOLTAGE TOLERANCE OPTION
(A VERSIONS)
Pin 1 – Ground
Pin 2 – VIN
Pin 3 – VOUT
Case – VIN
G Package TO257
IG PackageTO257*
* isolated Case on IG package
Pin 1 – Ground
Pin 2 – VIN
Pin 3 – VOUT
SMD Package SMD1
Ceramic Surface Mount
DESCRIPTION
The A suffix devices provide 0.7% / V line regulation,
0.5% / A load regulation and ±1% output voltage tolerance at
room temperature.
Protection features include Safe Operating Area current
limiting and thermal shutdown.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
VI DC Input Voltage
35V
PD Power Dissipation
Internally limited
Tj Operating Junction Temperature Range
–55 to 150°C
Tstg Storage Temperature
–65 to 150°C
Semelab Plc 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 plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Document Number 2643
Issue: 1
Free Datasheet http://www.datasheet4u.com/




Seme LAB

LM7905 Datasheet Preview

LM7905 Datasheet

1.5 AMP NEGATIVE VOLTAGE REGULATOR

No Preview Available !

LM120A-05
LM120-05
LM7905A
LM7905
Parameter
Test Conditions
IO = 500mA
VIN = -10V
VO Output Voltage IO = 5mA to IMAX VIN = -7.5V to -20V
PD £ PMAX
TJ = -55 to 150°C
VIN = -7V to -25V
IO = 0.5 IMAX
DVO Line Regulation
VIN = -7.5V to -20V
TJ = -55 to 150°C
VIN = -8V to -12V
IO £ IMAX
TJ = -55 to 150°C
DVO Load Regulation VIN = -10V
IO = 5mA to 1.5A
IO = 5mA to IMAX
IQ
DIQ
VN
DVIN
DVO
RO
TJ = -55 to 150°C
Quiescent Current IO £ 0.5 IMAX
VIN = -10V
TJ = -55 to 150°C
Quiescent Current IO = 5mA to IMAX
Change
VIN = -10V
TJ = -55 to 150°C
Output Noise
f = 10Hz to 100kHz
Voltage
Ripple Rejection
VIN = -10V
f = 120Hz
VIN = -8V to -18V
IO £ IMAX
IO £ 0.5 IMAX
Dropout Voltage IO = IMAX
Output Resistance f = 1 kHz
TJ = -55 to 150°C
Short Circuit
Isc Current
VIN = -35V
Peak Output
Ipk Current Average VIN = -10V
Temperature
Coefficient of VO
Input Voltage required to
maintain line regulation
IO = 5mA
IO £ IMAX
LM7905A
LM120A05
Min. Typ. Max.
-4.95 -5 -5.05
-4.85
-5.15
3 10
3 10
14
1 12
25 35
25 35
1 1.9
12
0.2 0.4
0.2 0.5
100
58
58
1.4
5
0.6 1.2
2.4 3.3
0.2
-7.3
LM7905 , LM12005
LM12005
Min. Typ. Max.
-4.9 -5 -5.1
-4.8 -5.2
Units
V
3 25
3 50
mV
1 25
2 50
25 100
mV
25 100
1 1.9
mA
12
0.2 0.4
mA
0.2 0.5
100 mV
54
dB
54
1.4 V
5 mW
0.6 1.2
A
2.4 3.3
mV
0.2
°C
-7.3 V
1) All characteristics are measured with a capacitor across the input of 0.22mF and a capacitor across the output of 0.1mF.
All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tp £ 10ms, d £ 5%). Output
voltage changes due to changes in internal temperature must be taken into account separately.
2) Test Conditions unless otherwise stated:PMAX = 10W for SMD , PMAX = 20W for all other package devices
IMAX = 1.0A , TJ = 25°C
Semelab Plc 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 plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Document Number 2643
Issue: 1
Free Datasheet http://www.datasheet4u.com/


Part Number LM7905
Description 1.5 AMP NEGATIVE VOLTAGE REGULATOR
Maker Seme LAB
Total Page 3 Pages
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