LM123 National Semiconductor, LM123 Datasheet - Page 3

• Manufacturer Part Number: LM123
• Description: 3-Amp/ 5-Volt Positive Regulator
• Manufacturer: National Semiconductor

LM323A/LM323 Electrical Characteristics
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: Unless otherwise noted, specifications apply for −55˚C
LM323. Although power dissipation is internally limited, specifications apply only for P
Note 3: Without a heat sink, the thermal resistance of the TO-3 package is about 35˚C/W. With a heat sink, the effective thermal resistance can only approach the
specified values of 2˚C/W, depending on the efficiency of the heat sink.
Note 4: Load and line regulation are specified at constant junction temperature. Pulse testing is required with a pulse width
Note 5: Refer to RETS123K drawing for LM123K military specifications.
Note 6: Human body model, 1.5 k
Typical Performance Characteristics
Maximum Average Power
Dissipation for LM123
Peak Available Output Current
Dropout Voltage
DS007771-12
DS007771-15
in series with 100 pF.
DS007771-9
Maximum Average Power
Dissipation for LM323A, LM323
Short Circuit Current
Line Transient Response
T
j
+150˚C for the LM123, −40˚C
3
30W.
(Note 2) (Continued)
DS007771-10
DS007771-13
DS007771-16
T
j
+125˚C for the LM323A, and 0˚C
Output Impedance
Ripple Rejection
Output Voltage
1 ms and a duty cycle
T
j
www.national.com
+125˚C for the
DS007771-17
DS007771-14
DS007771-11
5%.