LM320L Datasheet, PDF (3/8 Pages) National Semiconductor (TI) – 3-Terminal Negative Regulators

Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Input Voltage
V_O = −5V, −12V, −15V
Internal Power Dissipation (Note 2)
−35V
Internally Limited
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature
(Soldering, 10 sec.)
0˚C to +70˚C
+125˚C
−55˚C to +150˚C
260˚C
Electrical Characteristics (Note 3)
T_A = 0˚C to +70˚C unless otherwise noted.
Output Voltage
−5V
Input Voltage (unless otherwise noted)
−10V
Symbol Parameter
Conditions
Min Typ Max
V_O
Output
T_J = 25˚C, I_O = 100mA −5.2 −5 −4.8
Voltage
∆V_O
Line
Regulation
1mA ≤ I_O ≤ 100mA
V_MIN ≤ V_IN ≤ V_MAX
1mA ≤ I_O ≤ 40mA
V_MIN ≤ V_IN ≤ V_MAX
T_J = 25˚C, I_O = 100mA
−5.25
−4.75
(−20 ≤ V_IN ≤ −7.5)
−5.25
−4.75
(−20 ≤ V_IN ≤ −7)
60
∆V_O
Load
Regulation
V_MIN ≤ V_IN ≤ V_MAX
T_J = 25˚C, I_O = 40mA
V_MIN ≤ V_IN ≤ V_MAX
T_J = 25˚C
(−20 ≤ V_IN ≤ −7.3)
60
(−20 ≤ V_IN ≤ −7)
50
1mA ≤ I_O ≤ 100mA
∆V_O
Long Term I_O = 100mA
20
Stability
I_Q
Quiescent I_O = 100mA
Current
2
6
∆I_Q
Quiescent 1mA ≤ I_O ≤ 100mA
0.3
Current
Change
1mA ≤ I_O ≤ 40mA
0.1
I_O = 100mA
0.25
V_MIN ≤ V_IN ≤ V_MAX
(−20 ≤ V_IN ≤ −7.5)
V_n
Output Noise T_J = 25˚C, I_O = 100mA
40
Voltage
f = 10Hz − 10kHz
Ripple
Rejection
T_J = 25˚C, I_O = 100mA 50
f = 120Hz
Input Voltage T_J = 25˚C, I_O = 100mA
Required to I_O = 40mA
Maintain Line
−7.3
−7.0
Regulation
Min
−12.5
−12V
−17V
Typ
−12
Max
−11.5
−12.6
−11.4
(−27 ≤ V_IN ≤ −14.8)
−12.6
−11.4
(−27 ≤ V_IN ≤ −14.5)
45
(−27 ≤ V_IN ≤ −14.6)
45
(−27 ≤ V_IN ≤ −14.5)
100
48
2
6
0.3
0.1
0.25
(−27 ≤ V_IN ≤ −14.8)
96
52
−14.6
−14.5
Min
−15.6
−15V
−20V
Typ Max
−15 −14.4
Units
−15.75
−14.25
(−30 ≤ V_IN ≤ −18)
V
−15.75
−14.25
(−30 ≤ V_IN ≤ −17.5)
45 mV
(−30 ≤ V_IN ≤ −17.7)
V
45 mV
(−30 ≤ V_IN ≤ −17.5)
V
125 mV
60
mV/khrs
2
6
mA
0.3
0.1 mA
0.25 mA
(−30 ≤ V_IN ≤ −18)
V
120
µV
50
dB
−17.7 V
−17.5 V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Note 2: Thermal resistance of Z package is 60˚C/W θ_JC, 232˚C/W θ_JA at still air, and 88˚C/W at 400 ft/min of air. The M package θ_JA is 180˚C/W in still air. The
maximum junction temperature shall not exceed 125˚C on electrical parameters.
Note 3: To ensure constant junction temperature, low duty cycle pulse testing is used.
3
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