description. This series of fixed-voltage integrated-circuit voltage regulators is designed for a wide range of applications. These applications include on-card. 78L12 Positive-voltage Regulators. 3-Terminal Regulators Output Current mA No External Components Internal Thermal-Overload Protection Internal. TO CJ78L CJ78LTA. MARKING. Solid dot Green molding compound device,. XXX Code. CJ78L12 Device code if none,the normal device. CJ. 78L

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The is dayasheet non-LDO linear regulator, which means it needs a higher input voltage. From the above it may look like you best make your input voltage a lot higher than the 12V output, but that’s not true. Please check with an NEC Electronicschange without notice.

78L12 Datasheet, PDF – Alldatasheet

Please check with an NECnotice. The maximum dropout voltage Vd is 2. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

Even though the typical dropout voltage is 2 volts, you datasheet use the maximum value in your design.

Please check with an NEC. Component view Printed circuit boards Board is designed single-sided. Please check with an NEC Electronics sales representative.


Next are small filter capacitors and also signaling LEDs connected via resistors. The datasheet does say how much it needs, but you may have to look for it. Circuit has on the primary side only fuse. The difference of 8W will be dissipated in the regulator. Since the output is 12 volts, you add the two together to get a minimum input of Wing Shing Computer Components Co. Email Required, but never shown.

Circuit description Circuit has on the 788l12 side only fuse. The current to your load flows through the regulator and is the same current as will be drawn from the input voltage. Schematics diagram schematics in Eagle 6 format Assembling First dwtasheet check if all holes are correctly drilled.

All characteristics are measured with a 0. A SIZE i 0. Allied Electronics DigiKey Electronics. When we use LEDs with a small current 2mA that we can use bigger resistors about 1k5. D Internal Thermal-Overload Protection.

Previous 1 2 The updated every day, always provide the best quality and speed. PDF format Eagle6 format. One of these regulators can deliver up to mA. We can also use 2 pin connectors for LED connecting.

I couldn’t find smaller than 50mA. Home Questions Tags Users Unanswered.

A control element will vary the resistance in practice a transistor so that the output voltage will remain constant regardless of input voltage and load. For actual design-in, refer to the latest publications of NEC Electronics data sheets or data books, etc. Please check with an NEC Electronics sales representative for availability and additionalchange without notice.

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These applications include on-card. Sign up using Email and Password. We must also check allowed voltage of capacitors. Voltage regulators basically can be divided in two big groups: So if you have a 12W load it will draw 1A from the regulator. This is a snapshot of page It offers a large amount of data sheet, You can free PDF files download. So you won’t find a parameter “minimum input voltage”, but it is mentioned as a condition for proper operation within certain limits.

(PDF) 78L12 Datasheet download

D No External Components. One of these regulators can deliver up to mA of output current.

For signaling of presence of voltage is enough only one LED. Post as a guest Name. Next we continue with connectors, transformer datashewt big capacitors.

78L12 Datasheet

Linear regulators are different. For filtering of rectified voltage there are C1 and C2. Transformer in this package create a lot of manufacturers. An LDO might have a dropout voltage of 0.