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2. List of LM-series integrated circuits - Wikipedia

   en.wikipedia.org/wiki/List_of_LM-series...

   Adjustable 5 A voltage regulator (1.2 V-32 V) [69] LM140 LM340 LM78xx 1 A positive voltage regulator (5 V, 12 V, 15 V), can be adjustable [70] [71] LM341 LM78Mxx: 0.5 A protected positive voltage regulators (5 V, 12 V, 15 V) [72] LM145 LM345 Yes Fixed 3 A, -5-volt negative voltage regulator [73] LM150 LM350 only LM150 Adjustable 3 A, positive ...

3. LM317 - Wikipedia

   en.wikipedia.org/wiki/LM317

   LM317 with heat sink. The LM317 is an adjustable positive linear voltage regulator.It was designed by Bob Dobkin in 1976 while he worked at National Semiconductor. [1]The LM337 is the negative complement to the LM317, which regulates voltages below a reference.

4. Voltage regulator - Wikipedia

   en.wikipedia.org/wiki/Voltage_regulator

   The ferroresonant transformer, ferroresonant regulator or constant-voltage transformer is a type of saturating transformer used as a voltage regulator. These transformers use a tank circuit composed of a high-voltage resonant winding and a capacitor to produce a nearly constant average output voltage with a varying input current or varying load.

5. 78xx - Wikipedia

   en.wikipedia.org/wiki/78xx

   For ICs within the 78xx family, the xx is replaced with two digits, indicating the output voltage (for example, the 7805 has a 5-volt output, while the 7812 produces 12 volts). The 78xx line are positive voltage regulators: they produce a voltage that is positive relative to a common ground.

6. Low-dropout regulator - Wikipedia

   en.wikipedia.org/wiki/Low-dropout_regulator

   Low-dropout (LDO) regulators operate similarly to all linear voltage regulators.The main difference between LDO and non-LDO regulators is their schematic topology.Instead of an emitter follower topology, low-dropout regulators consist of an open collector or open drain topology, where the transistor may be easily driven into saturation with the voltages available to the regulator.

7. TL431 - Wikipedia

   en.wikipedia.org/wiki/TL431

   The TL431 integrated circuit (IC) is a three-terminal adjustable precise shunt voltage regulator. With the use of an external voltage divider, a TL431 can regulate voltages ranging from 2.495 to 36 V, at currents up 100 mA. The typical initial deviation of reference voltage from the nominal 2.495 V level is measured in millivolts, the maximum ...