LM723 STMicroelectronics, LM723 Datasheet
LM723
Available stocks
Related parts for LM723
LM723 Summary of contents
Page 1
... Output current to 150 mA without external pass transistor ■ Adjustable current limiting Description The LM723 is a monolithic integrated programmable voltage regulator, assembled in 14-lead dual in-line plastic package. The circuit provides internal current limiting. When the output current exceeds 150 mA an external NPN or PNP pass element may be used ...
Page 2
Contents 1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 3
Diagram Figure 1. Schematic diagram 3/21 ...
Page 4
Pin configuration Figure 2. Pin connections (top view) 4/21 ...
Page 5
... Storage Temperature STG T Junction Temperature J Table 3. Thermal data Symbol R Thermal resistance junction-ambient Max thJA LM723 40 40 150 15 -55 to 125 -65 to 150 150 Parameter Value Unit LM723C 150 °C -65 to 150 °C 125 °C DIP14 Unit 200 °C/W 5/21 ...
Page 6
Circuit Figure 3. Test circuit (pin configuration relative to the plastic package) Note 6/21 ≤ Ω mA ...
Page 7
... Electrical characteristics Table 4. Electrical characteristics for LM723 (refer to the test circuits, T otherwise specified.) Symbol Parameter ΔV /ΔV Line regulation O I ΔV /V Load regulation Reference voltage REF SVR Supply voltage rejection f = 100 Hz to 10kHz ΔV /ΔT Output voltage drift O I Output current limit ...
Page 8
... Table 5. Electrical characteristics for LM723C (refer to the test circuits, T otherwise specified.) Symbol Parameter ΔV /ΔV Line regulation O I ΔV /V Load regulation Reference voltage REF SVR Supply voltage rejection f = 100 Hz to 10kHz ΔV /ΔT Output voltage drift O I Output current limit ...
Page 9
T (unless otherwise specified V Figure 4. Maximum output current vs voltage drop Figure 6. Current limiting characteristics vs junction temperature Figure 8. Load regulation characteristics with current limiting = 3.3 V) O(NOM) Figure 5. Current ...
Page 10
Figure 10. Line regulation vs voltage drop Figure 12. Quiescent drain current vs input voltage Figure 14. Load transient response 10/21 Figure 11. Load regulation vs voltage drop Figure 13. Line transient response Figure 15. Output impedance vs frequency ...
Page 11
Table 6. Resistor values (kΩ) for standard output voltages Output Applicable figures Voltage +3 16, 18, 20, 21, 24 16, 18, 20, 21, 24 16, 18, 20, 21, 24 17, 18, 20, 21, 24, ...
Page 12
Applications information Figure 16. Basic low voltage regulator (V Note )/( may be eliminated for minimum component count. 3 Typical performance Regulated output voltage..................5 V Δ Line regulation ( ...
Page 13
Figure 18. Negative voltage regulator Note: Typical performance Regulated output voltage.................15 V Δ Line regulation ( Δ Load regulation ( Figure 19. Positive voltage regulator (external NPN pass transistor) Note: Typical performance Regulated output voltage................15 V Δ Line regulation ( ...
Page 14
Figure 20. Positive voltage regulator (external PNP pass transistor) Note: Typical performance Regulated output voltage...................5 V Δ Line regulation ( Δ Load regulation ( Figure 21. Foldback current limiting Note: Typical performance Regulated output voltage....................5 V Δ Line regulation ( ...
Page 15
Figure 22. Positive floating regulator Note: Typical performance Regulated output voltage....................100 V Δ Line regulation ( Δ Load regulation ( Figure 23. Negative floating regulator Note: Typical performance Regulated output voltage....................-100 V Δ Line regulation ( Δ Load regulation ( ...
Page 16
Figure 24. Positive switching regulator Note: Typical performance Regulated output voltage....................5 V Δ Line regulation ( Δ Load regulation ( Figure 25. Remote shutdown regulator with current limiting Note: Current limit transistor may be used for shutdown if current limiting ...
Page 17
Figure 26. Shunt regulator Note: Typical performance Regulated output voltage............................5 V Δ Line regulation ( Δ Load regulation ( Figure 27. Output voltage adjust V)..................... 100 mA).............. 17/21 ...
Page 18
P In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the ...
Page 19
Plastic DIP-14 mechanical data mm. Dim. Min. Typ. a1 0.51 B 1.39 b 0 8.5 e 2.54 e3 15. 3.3 Z 1.27 inch. Max. Min. Typ. 0.020 1.65 0.055 0.020 0.010 20 0.335 ...
Page 20
Revision history Table 8. Document revision history Date Revision 21-Jun-2004 5 22-Nov-2007 6 20/21 Changes Added Table 1. ...
Page 21
... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...