LM120A-05
LM120-05
LM7905A
LM7905
1.5 AMP
NEGATIVE
VOLTAGE REGULATOR
1
1
2
2
3
3
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 – V
OUT
Case – V
IN
Pin 1 – Ground
Pin 2 – V
OUT
Case – V
IN
K Package – TO–3
R Package – TO–66
!
1 2 3
DESCRIPTION
Pin 1 – Ground
Pin 2 – V
IN
Pin 3 – V
OUT
Case – V
IN
Pin 1 – Ground
Pin 2 – V
IN
Pin 3 – V
OUT
G Package – TO–257
IG Package– TO–257
*
* isolated Case on IG package
SMD Package – SMD1
Ceramic Surface Mount
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
(T
case
= 25°C unless otherwise stated)
V
I
P
D
T
j
T
stg
DC Input Voltage
Power Dissipation
Operating Junction Temperature Range
Storage Temperature
35V
Internally limited
–55 to 150°C
–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
LM120A-05
LM120-05
LM7905A
LM7905
LM7905A
LM120A–05
Min.
Typ.
Max.
V
IN
= -10V
V
IN
= -7.5V to -20V
T
J
= -55 to 150°C
V
IN
= -7V to -25V
V
IN
= -7.5V to -20V
T
J
= -55 to 150°C
V
IN
= -8V to -12V
I
O
£
I
MAX
T
J
= -55 to 150°C
I
O
= 5mA to 1.5A
Load Regulation
V
IN
= -10V
I
O
£
0.5 I
MAX
V
IN
= -10V
Quiescent Current I
O
= 5mA to I
MAX
Change
Output Noise
Voltage
V
IN
= -10V
f = 10Hz to 100kHz
V
IN
= -10V
f = 120Hz
Ripple Rejection
V
IN
= -8V to -18V
I
O
= I
MAX
I
O
£
I
MAX
I
O
£
0.5 I
MAX
T
J
= -55 to 150°C
Dropout Voltage
R
O
I
sc
I
pk
Output Resistance f = 1 kHz
Short Circuit
Current
Peak Output
Current Average
V
IN
= -10V
I
O
= 5mA
I
O
£
I
MAX
-7.3
2.4
3.3
2.4
3.3
mV
°C
V
V
IN
= -35V
0.6
1.2
0.6
1.2
A
58
58
1.4
5
T
J
= -55 to 150°C
T
J
= -55 to 150°C
I
O
= 5mA to I
MAX
T
J
= -55 to 150°C
I
Q
Quiescent Current
-4.95
-4.85
3
3
1
1
25
25
1
1
0.2
0.2
100
54
54
1.4
5
V
m
W
-5
-5.05
-5.15
10
10
4
12
35
35
1.9
2
0.4
0.5
LM7905 , LM120–05
LM120–05
Min.
Typ.
Max.
-4.9
-4.8
3
3
1
2
25
25
1
1
0.2
0.2
100
-5
-5.1
-5.2
25
50
25
50
100
100
1.9
2
0.4
0.5
mV
V
Parameter
V
O
Output Voltage
Test Conditions
I
O
= 500mA
I
O
= 5mA to I
MAX
P
D
£
P
MAX
I
O
= 0.5 I
MAX
Units
D
V
O
Line Regulation
mV
D
V
O
mA
D
I
Q
V
N
mA
m
V
dB
D
V
IN
D
V
O
Temperature
Coefficient of V
O
Input Voltage required to
maintain line regulation
0.2
0.2
-7.3
1) All characteristics are measured with a capacitor across the input of 0.22
m
F and a capacitor across the output of 0.1
m
F.
All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (t
p
voltage changes due to changes in internal temperature must be taken into account separately.
2) Test Conditions unless otherwise stated:P
MAX
= 10W for SMD , P
MAX
= 20W for all other package devices
I
MAX
= 1.0A , T
J
= 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.
£
10ms,
d £
5%). Output
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
LM120A-05
LM120-05
LM7905A
LM7905
APPLICATIONS INFORMATION
I N PU T
V
IN
GND
C1 *
2. 2µF
T AN T .
V
OU T
OUTPUT
I N PU T
V
IN
GND
V
OU T
OUTPUT
R1
C2
1
µF
TANT.
I N PU T
V
IN
GND
C1
2. 2µF
T AN T .
V
OU T
C2
1µF
T AN T .
R1
C2 * *
1
µF
TANT.
C1
2. 2µF
T AN T .
O U TPU T
I
OUT
R2
Fixed Output Regulator
*
Required if the regulator is located far from
the power supply.
** Required for stability. 25
m
F electrolytic may
be substituted.
Adjustable Output Regulator
V
OUT
»
V
REG
(R1+R2)
R1
Current Regulator
I
OUT
=
V
REG
+ I
Q
R1
Order Information
Part
Number
LM7905A
LM7905
LM120A-05
LM120-05
K–Pack
(TO–3)
✔
✔
✔
✔
R–Pack
(TO–66)
✔
✔
✔
✔
G/IG–Pack SMD–Pack
(TO–257)
SMD1
✔
✔
✔
✔
✔
✔
✔
✔
Temp.
Range
-55 to +150°C
”
”
”
Note:
To order, add the
package identifier to the
part number.
eg.
LM7905AK
LM120SMD-05
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
Part number search for devices
beginning "LM7905"
Semelab Home
Datasheets are downloaded
as Acrobat PDF files.
Linear Devices
Input Output Voltage Voltage Input Output Voltage Voltage
Screening
Voltage Voltage drop
drop Voltage Voltage drop
drop
options
Temperature
Current SIDE 1 SIDE 1 SIDE 1 SIDE 1 SIDE 2 SIDE 2 SIDE 2 SIDE 2
available Package Description
Range
Polarity (A)
(V)
(V)
(typ.) (max.)
(V)
(V)
(typ.) (max.)
TO257AB
(TO220M)
TO257AB
(TO220M)
TO39
(TO205AD)
TO39
(TO205AD)
LCC4
LCC4
TO257AA
TO257AA
TO257-F
TO257-F
TO39
(TO205AD)
TO39
(TO205AD)
TO3
(TO204AA)
TO3
(TO204AA)
TO66
(TO213AA)
TO66
(TO213AA)
SMD1
(TO276AB)
SMD1
(TO276AB)
SMD0.5
(TO276AA)
SMD0.5
(TO276AA)
TO257AA
TO257AA
TO257-F
TO257-F
TO257AA
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -0.5A
-55 to +150°C Negative -0.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
PRODUCT
LM7905-220M
LM7905-220M-ISO
LM7905-39
LM7905-39-8QR-B
LM7905AE
LM7905AE-8QR-B
LM7905AG
LM7905AG-8QR-B
LM7905AGF
LM7905AGF-8QR-B
LM7905AH
LM7905AH-8QR-B
LM7905AK
LM7905AK-8QR-B
LM7905AR
LM7905AR-8QR-B
LM7905ASMD
LM7905ASMD-8QR-B
LM7905ASMD05
LM7905ASMD05-8QR-B
LM7905G
LM7905G-8QR-B
LM7905GF
LM7905GF-8QR-B
LM7905IG
Voltage
Regulator - -55 to +150°C Negative -1.5A
Isolated
Voltage
Regulator - -55 to +150°C Negative -1.5A
Isolated
LM7905IG-8QR-B
TO257AA
-5V
-1.1V
-2.3V
-
-
-
-
LM7905IGF
TO257-F
Voltage
Regulator - -55 to +150°C Negative -1.5A
Isolated
Voltage
Regulator - -55 to +150°C Negative -1.5A
Isolated
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
Voltage
Regulator
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-55 to +150°C Negative -1.5A
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-7.0V to
25V
-5V
-1.1V
-2.3V
-
-
-
-
LM7905IGF-8QR-B
LM7905K
LM7905K-8QR-B
LM7905R
LM7905R-8QR-B
LM7905SMD
LM7905SMD-8QR-B
LM7905SMD05
LM7905SMD05-8QR-B
TO257-F
TO3
(TO204AA)
TO3
(TO204AA)
TO66
(TO213AA)
TO66
(TO213AA)
SMD1
(TO276AB)
SMD1
(TO276AB)
SMD0.5
(TO276AA)
SMD0.5
(TO276AA)
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-5V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-1.1V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-2.3V
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
SCREENING OPTIONS AVAILABILITY
(including CECC, JAN/JANTX/JANTXV, BS)
symbol indicates that screening options are available for this device.
symbol.
For device-specific screening options and order information, click the relevant
For more information on Screening options,
visit the Screening Homepage.
Top of Page
If you are unable to find a suitable part, please
contact us.
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