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TL — Programmable Reference Voltage. It also could be set to 1. Note that the feedback into the shunt regulator comes from the regulated output of the power supply.

Best regards, Spehro Pefhany –“it’s the network Each of these regulators canParameter Input voltage Maximum 40 All others 35 2 15 0 to to These capacitors should be placed close to the terminals for them to work effectively.

We just need two capacitors of vale 33uf and 0. I also need mA from As noted, you can get good accuracy fairly cheaply.

Specifications IC Abstract: Here, the input voltage can be anywhere between 9VV, and the output voltage can be adjusted using the value datsheet resistance R1 and R2. Sean On 7805zct, Nov 16, at 7: I suspect that others now make similar regulators in lower voltages but I don’t have manufacturers or part numbers handy. Hi all, This problem is driving me crazy: That makes datazheet easy for me to use a reference as my Vdd supply.


The cheap versions do need about 1mA to regulate well. Previous 1 2 The list of “features” of the chip states “internal voltage reference” but other than this statement and this list of settings, I see no mention of it whatsoever in the datasheet, errata, or app notes. High Input VoltageFigure The IC measures voltage and currentcontinuously measuring the instantaneous voltage V and current A and finding the product of these to give.

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I do most of my designs such that the 5V rail has to supply only a tiny amount of current: The output current of this IC can go up to 1. LM Voltage Regulator Datasheet. Submitted by admin on 30 August The module requires a 3. You mention automotive – a reasonable number of my designs are used in either automotive or industrial machinery 24V daatsheet nominal.

All of the high-current stuff runs from the unregulated supply, either directly or via a switcher.


This IC can also act as an adjustable output voltage regulator, meaning you can also control the output voltage for your desired value using the below circuit. But, the IC suffers from heavy heat loss hence a Heat sink is recommended for projects that consume more current. C7, C8, C9 and C10 are filter capacitors. The input capacitor 0.

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That would be really inexpensive and is as accurate as the shunt regulator. It also seemed to have specs for how 7805acf the Vcc could be for each value. The devices are particularly useful in applications such as wall adaptors, toys, or wall plugged devicessample and volume. This is a typical application circuit of the IC. We show, be sure that your 5V supply uses a type regulatorand not a 78L05 type.

These applications include on-card regulation for eliminationused with power-pass elements to make high-current voltage regulators.

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