VX.X – Voltage Regulators versions explanation

Till today (24 April 2015) I have designed 14 versions of voltage regulators of which as many as 9 are newly and my own topologies. I know You could have a problem to choose a right one for Your application, so I would like to explain You differences between all versions.

In general there are 3 groups.

•  discrete series regulators
•  discrete shunt regulators
•  integrated regulators (series)

In explanation:

• V1.0 – simple series regulator with NPN output, single transistor error amplifier, LED voltage reference and CSS bias    circuit.

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• V1.1 – simple series regulator with Szikai output, single transistor error amplifier, LED voltage reference and CSS bias circuit.

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• V1.2 – V1.0 with some improvement for high output voltage, gold plated PCBs.

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• V2.0 – series regulator with opamp error amplifier, Szikai output, LED voltage reference and CCS bias circuit.

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• V2.1 – series regulator with opamp error amplifier, NPN output, LED voltage reference and CCS bias circuit, gold plated PCBs.

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• V3.0 – series regulator with transistor differential amplifier, NPN output, LED voltage reference, CCS bias circuit.

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• V3.1 – V3.0 with some improvements for better soldering, precision voltage reference, precision output voltage set, gold plated PCBs.

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• V3.0max – V3.0 with improvements for high output voltage, gold plated PCBs.

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• V4.0 – shunt regulator based on TL431 with Sziklai CCS, gold plated PCBs.

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• V5.0 – series regulator with opamp error amplifier in shunt configuraton, gold plated PCBs.

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• V6.1 – series regulator based on Texas Instruments TPS7A4700/3301, gold plated PCBs.

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• V8.0 – shunt regulator with transistor differential amplifier, Sziklai CCS, precision/LED voltage reference, gold plated PCBs.

All deigns (excluding V3.0max) are made on 30mm x 15mm PCBs like this:

Pinout always are:

1.  IN
2.  IN
3.  GND
4.  OUT
5.  OUT

so they can replace integrated regulators like 78XX or discrete like TPA Trident Shunt.

You can use only 3 center pins for replacement of 78XX, or all 5 pins when board is designed to use my discrete regulators.

For better heat dissipation external heatsink can be used. I use Fisher heatsinks mounted by 3M heat-conductive tape:

This tape can be also used to stick the regulator to any metal elements of Your device. Here You can find V1.0 regulators mounted on Revox B226 CD to provide better opamp supply:

For detailed information about specific version please choose right one from menu. Not all version are carefully described on my page.