Lm117, lm317n wide temperature threepin adjustable regulator. Load regulation is measured on the output pin at a. Lm185adj, lm285adj, lm385adj careful design of the lm185 has made the device 1features tolerant of capacitive loading, making it easy to use in 2 adjustable from 1. Fairchild adjustable voltage regulator positive,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The lm217, lm317 are monolithic integrated circuits in to220, to220fp and d.
This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. The 23a25623k256 has three modes of operation that are selected by setting bits 7 and 6 in the status register. Voltage regulator adjustable output, positive 500 a. Bay linear, inc 2418 armstrong street, livermore, ca 94550 tel. Lm317d lm317, ncv317 voltage regulator adjustable output, positive 1. Adjustable voltage regulator positive, lm317t datasheet, lm317t circuit, lm317t data sheet. For q1,2 and 3 can be used any power to220 transistor tip2c,tip41c etc or three external. Stmicroelectronics, alldatasheet, datasheet, datasheet search site for electronic.
Some parametric limits are subject to change the is a family by 1bit static rams, fabricated with the high performance cmos silicon gate process and designed for high speed application. Lm4121 precision micropower low dropout voltage reference general description the lm4121 is a precision bandgap voltage reference available in a fixed 1. Lm317 is itself capable of having its output shorted without damage. The nominal output voltage is selected by means of a resistive divider. Lm317t 3pin linear regulator by stmicroelectronics. Stmicroelectronics, alldatasheet, datasheet, datasheet. This threeterminal reference operates with an input voltage from 3. By using a potentiometer, r2, as one of the resistors you can dial up the output voltage wanted. Lm317 have been used to drive 3 npn tip41c transistors or three 2n3055.
Nothing to say about the project, it is really simple. National semi invented the lm317 so you should look at their datasheet where everything is explained in english with details. They are exceptionally easy to use and require only two external resistors to set the output voltage. Unless otherwise specified, vin b vout e 5v, and iout e 10 ma. Lm317t pdf, lm317t description, lm317t datasheets, lm317t. Lm317t datasheet, lm317t datasheets, lm317t pdf, lm317t circuit. Precision, micropower, 3v series voltage reference in sot23. Darlington circuit schematic base emitter collector. An important notice at the end of this data sheet addresses availability, warranty. This is a basic universal variable power supply voltage regulator circuit using an lm317, 3terminal regulator in a to220package. Emerson 582122500 vortex 1231v2 48 volts dc 1200a max per bay, 50a pcu or 65a per pcu. St lm317t st lm317t adjustable voltage regulator 1. This series reference operates with input voltages as low as 1.
Ka317, lm317 3terminal positive adjustable regulator on. The ltc7851 and ltc3861 have an supply voltage range of 3v to 5. The lm317 is an adjustable threeterminal positivevoltage regulator capable of supplying more than 1. Lossless current sensing is used for output current sensing or to maintain. Pc900vpc900vq digital output type opic photocoupler. The universal power supply output voltage can be set to anywhere in the range 1. Lm336z25 datasheetpdf 1 page fairchild semiconductor.
Snvsac2 march 2015revised october 2015 7 specifications 7. Lm185 lm285lm385 adjustable micropower voltage references check for samples. Fairchild semiconductor reserves the right to make changes at any time without notice to improve design. In my circuit, im applying 45v to the input, and getting 30v from the output. Byte operation is selected when bits 7 and 6 in the status register are set to 00. Voltage regulator logos are entitled to their respective owners. Toshiba field effect transistor silicon n channel mos type mosv, k2698 pdf download toshiba, k2698 datasheet pdf, pinouts, data sheet, equivalent, schematic, cross reference, obsolete, circuits. Lm317a 1% accurate threeterminal adjustable regulator. The monolithic ic voltage reference operates as a low.
It requires only two external resistors to set the output voltage. Lm336z25 programmable shunt regulator farnell element14. The lm317 device is an adjustable threeterminal positivevoltage regulator capable of supplying more than 1. But the inputoutput voltage difference must not exceed 40v.
I think you are looking at the datasheet from st micro who are italian. Linear technologyanalog devices multiphase stepdown voltage mode dcdc controllers are external power switch buck controllers with accurate current sharing. Lm317t datasheet, lm317t pdf, lm317t data sheet, datasheet, data sheet, pdf home all manufacturers by category part name, description or manufacturer contain. Offer lm317lz fsc from kynix semiconductor hong kong limited. Lm317t datasheet positive voltage regulator motorola. Changes in output voltage due to heating effects are covered under the specification for thermal regulation.
Pak packages intended for use as positive adjustable voltage regulators. This goes intro the bridge rectifier and from the rectifier to the lm317. Vo 40 vdc power dissipation package limitation note 1. This voltage regulation devices single output can produce a current up to 0. Lm317 datasheet, lm317 pdf, lm317 data sheet, lm317 manual, lm317 pdf, lm317, datenblatt, electronics lm317, alldatasheet, free, datasheet, datasheets, data sheet. Multiphase buck voltage mode dcdc controllers linear.
In the below circuit, the diodes protect the lm317 against both of the caps discharging into the ic when input or output is shorted. P16nf06l datasheet, p16nf06l pdf, p16nf06l data sheet, datasheet, data sheet, pdf home all manufacturers by category part name, description or manufacturer contain. National semi explains the function of c2 and the functions of the diodes on their dsatasheet. Dual power distribution switch and monolithic synchronous. Factory drop ship smaller orders ship within 5 days this part has. In this mode, the read write operations are limited to only one byte. Datasheet search engine for electronic components and. There is a transformer driving 220vac to 24vac on secondary coils when in series. See general marking information in the device marking section on page 10 of this data sheet. Im trying to use an lm317 as a voltage regulator to drive a fan. Lm317t datasheet pdf positive voltage regulator motorola, lm317 datasheet, lm317t pdf, lm317t pinout, equivalent, lm317t data, lm317t circuit.