LM120, LM320-N
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SNVS756C –APRIL 1998–REVISED APRIL 2013
LM120H-12 ELECTRICAL CHARACTERISTICS (continued)
Metal Can Package
Order Numbers
LM120H-12
(TO)
Units
Design Output Current (ID)
0.2A
Device Dissipation (PD)
2W
(1)
Parameter
Conditions
Min
Typ
Max
−11.5
4
(2)
5 mA ≤ ILOAD ≤ ID
14.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
Output Voltage,
,
−12.5
V
(1)
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.05
0.03
400
0.4
0.4
mA
mA
μV
5 mA ≤ ILOAD ≤ ID
Output Noise Voltage
TA = 25°C, CL = 1 μF, IL = 5 mA,
VIN = 17V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability
Thermal Resistance
Junction to Case
12
120
mV
(3)
(3)
°C/W
°C/W
Junction to Ambient
(2) Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account
separately. To ensure constant junction temperature, low duty cycle, pulse testing is used. The LM120/LM320-N series does have low
thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical
specifications apply only up to PD.
(3) Thermal resistance of typically 85°C/W (in 400 linear feet/min air flow), 224°C/W (in static air) junction to ambient, of typically 21°C/W
junction to case.
LM320T-12 ELECTRICAL CHARACTERISTICS
Power Plastic Package
Order Numbers
LM320T-12
(TO-220)
Units
Design Output Current (ID)
Device Dissipation (PD)
1A
15W
Typ
−12
(1)
Parameter
Output Voltage
Conditions
Min
Max
TJ = 25°C, VIN = 17V,
ILOAD = 5 mA
−12.4
−11.6
V
Line Regulation
TJ = 25°C, ILOAD = 5 mA,
4
20
−14.5
80
mV
VMIN ≤ VIN ≤ VMAX
Input Voltage
−32
V
Ripple Rejection
f = 120 Hz
56
80
30
dB
mV
Load Regulation,
(2)
TJ = 25°C, VIN = 17V,
5 mA ≤ ILOAD ≤ ID
Output Voltage,
(1)
14.5V ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID, P ≤ PD
MIN ≤ VIN ≤ VMAX
TJ = 25°C
MIN ≤ VIN ≤ VMAX
5 mA ≤ ILOAD ≤ ID
,
−12.6
−11.4
4
V
Quiescent Current
Quiescent Current
Change
V
2
mA
V
0.1
0.1
0.4
0.4
mA
mA
(1) This specification applies over −55°C ≤ TJ ≤ +150°C for the LM120 and 0°C ≤ TJ ≤ +125°C for the LM320-N.
(2) Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken into account
separately. To ensure constant junction temperature, low duty cycle, pulse testing is used. The LM120/LM320-N series does have low
thermal feedback, improving line and load regulation. On all other tests, even though power dissipation is internally limited, electrical
specifications apply only up to PD.
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