Document Number 3725
Issue 2
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
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Website: http://www.semelab.co.uk
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.
1)
All characteristics are measured with a capacitor across the input of 2.2
F and a capacitor across the output of 1.0F.
All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tp ≤ 10ms, δ≤ 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 , P MAX = 20W for all other package devices, IMAX = 1.0A , TJ = 25°C
VO
Output Voltage
VO
Low Supply
VO Line Regulation
VO Load Regulation
IQ
Quiescent Current
IQ Quiescent Current
Change
VN
Output Noise
Voltage
VIN
Ripple Rejection
VO
Dropout Voltage
RO
Output Resistance
Isc
Short Circuit
Current
Ipk
Peak Output
Current
Average Temperature
Coefficient of VO
Input Voltage required to
maintain line regulation
IP/LM 7912A Series
IP/LM 7912 Series
IP/LM120A–12 Series
IP/LM120–12 Series
Parameter
Test Conditions
Min.
Typ.
Max.
Min.
Typ.
Max.
Units
IO = 500mA
VIN = -19V
VIN = -14.8V to -27V PD ≤ PMAX
IO = 5mA to IMAX
TJ = -55 to 150°C
IO = 5mA to IMAX
PD ≤ PMAX
VIN = -14.5V to -27V
VIN = -14.5V to -30V
IO = 0.5 IMAX
VIN = -14.8V to -27V
TJ = -55 to 150°C
IO ≤ IMAX
VIN = -16V to -22V TJ = -55 to 150°C
IO = 5mA to1.5A
VIN = -19V
IO = 250mA to 750mA
VIN = -19V
IO = 5mA to IMAX
TJ = -55 to 150°C
IO ≤ 0.5 IMAX
VIN = -19V
TJ = -55 to 150°C
IO = 5mA to IMAX
VIN = -19V
TJ = -55 to 150°C
VIN = -14.5V to -30V
IO ≤ 0.5 IMAX
VIN = -15V to -30V
TJ = -55 to 150°C
f = 10Hz to 100kHz
VIN = -19V
f = 120Hz
IO ≤ IMAX
VIN = -15V to -25V IO ≤ 0.5 IMAX
TJ = -55 to 150°C
IO = IMAX
f = 1.0 kHz
VIN = -35V
VIN = -19V
IO = 5mA
IO ≤ IMAX
-11.76
-12
-12.24
11.52
-12.48
-11.40
-12.60
4
120
4
200
1.0
25
260
12
80
460
8
120
0.2
0.4
1.0
2
0.2
0.4
0.2
0.5
0.1
0.4
0.1
1.0
75
960
56
72
56
72
1.1
2.3
8
0.6
1.2
2.4
3.3
0.5
4.8
-14.5
-11.88
-12
-12.12
-11.64
-12.36
-11.40
-12.36
418
1.0
4
29
12
32
419
860
0.2
0.4
1.0
2
0.2
0.4
0.2
0.5
0.1
0.4
0.1
0.5
75
960
58
72
58
72
1.1
2.3
8
0.6
1.2
2.4
3.3
0.5
4.8
-14.5
V
mV
mA
V
dB
V
m
A
mV
°C
V
IP120 SERIES
IP7900 SERIES
LM120 SERIES
LM7900 SERIES