Datasheet

LM120, LM320-N
www.ti.com SNVS756C –APRIL 1998–REVISED APRIL 2013
LM120H-5.0 ELECTRICAL CHARACTERISTICS
(1)
Metal Can Package
Order Numbers
LM120H-5.0
(TO)
Units
Design Output Current (I
D
) 0.5A
Device Dissipation (P
D
) 2W
Parameter Conditions
(2)
Min Typ Max
Output Voltage T
J
= 25°C, V
IN
=10V, −5.1 −5 −4.9 V
I
LOAD
= 5 mA
Line Regulation T
J
= 25°C, I
LOAD
= 5 mA, 10 25 mV
V
MIN
≤ V
IN
≤ V
MAX
Input Voltage −25 −7 V
Ripple Rejection f = 120 Hz 54 64 dB
Load Regulation, T
J
= 25°C, V
IN
= 10V, 30 50 mV
(3)
5 mA ≤ I
LOAD
≤ I
D
Output Voltage, −7.5V ≤ V
IN
≤ V
MAX
, −5.20 −4.80 V
(4)
5 mA ≤ I
LOAD
≤ I
D
, P ≤ P
D
Quiescent Current V
MIN
≤ V
IN
≤ V
MAX
1 2 mA
Quiescent Current T
J
= 25°C
Change V
MIN
≤ V
IN
≤ V
MAX
0.05 0.4 mA
5 mA ≤ I
LOAD
≤ I
D
0.04 0.4 mA
Output Noise Voltage T
A
= 25°C, C
L
= 1 μF, I
L
= 5 mA, 150 μV
V
IN
= 10V, 10 Hz ≤ f ≤ 100 kHz
Long Term Stability 5 mV
Thermal Resistance
Junction to Case
(5)
°C/W
Junction to Ambient
(5)
°C/W
(1) For −5V 3 amp regulators, see LM145 data sheet.
(2) This specification applies over −55°C ≤ T
J
≤ +150°C for the LM120 and 0°C ≤ T
J
≤ +125°C for the LM320-N.
(3) 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 P
D
.
(4) This specification applies over −55°C ≤ T
J
≤ +150°C for the LM120 and 0°C ≤ T
J
≤ +125°C for the LM320-N.
(5) Thermal resistance of typically 85°C/W (in 400 linear feet air flow), 224°C/W (in static air) junction to ambient, of typically 21°C/W
junction to case.
ABSOLUTE MAXIMUM RATINGS−12 VOLT REGULATORS
(1)(2)
Power Dissipation Internally Limited
Input Voltage −35V
Input-Output Voltage Differential 30V
Junction Temperatures
(3)
Storage Temperature Range −65°C to +150°C
Lead Temperature
(Soldering, 10 sec.) 300°C
(1) Refer to RETS120H-12 drawing for LM120H-12 or RETS120-12K drawing for LM120K-12 military specifications.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) This specification applies over −55°C ≤ T
J
≤ +150°C for the LM120 and 0°C ≤ T
J
≤ +125°C for the LM320-N.
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