What is the range of IC 317 adjustable voltage regulator?
What is the range of IC 317 adjustable voltage regulator?
1.25 V to 37 V
The LM317 device is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V.
What can I use in place of LM317?
The Lm317 needs a minimum of 10mA load, i would use a 100ohm 10W load resistor, and use the MJE3055 transistor.
How do you increase the output current of LM317?
The popular LM317 voltage regulator IC is designed to deliver not more than 1.5 amps, however by adding an outboard current boost transistor to the circuit it becomes possible to upgrade the regulator circuit to handle much higher currents, and upto any desired levels.
What is then the LM317 IC is all about?
The LM317T is an adjustable 3-terminal positive voltage regulator capable of supplying different DC voltage outputs other than the fixed voltage power supply of +5 or +12 volts, or as a variable output voltage from a few volts up to some maximum value all with currents of about 1.5 amperes.
What does LM mean in electronics?
linear monolithic
The LM series originated with integrated circuits made by National Semiconductor. The prefix LM stands for linear monolithic, referring to the analog components integrated onto a single piece of silicon.
Is LM317 a transistor?
The LM317 is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 32 V. By using a heat-sinked pass transistor such as a 2N3055 (Q1) we can produce several amps of current far above the 1.5 amps of the LM317.
How do you calculate the output voltage of LM317?
Using the formula for the output voltage, VOUT= 1.25V (1 + R2/R1). Being that R1=240Ω, our equation is now 5V= 1.25V (1 + R2/240Ω), so R2=720Ω. So with R2 being a value of 720Ω, the LM317 will output 5V if fed an input voltage greater than 5 volts.
What is the maximum limit of output current of the IC 317?
Specifications
| Symbol | Parameter | Value |
|---|---|---|
| Vin – Vout | Voltage differential | 3 – 40 |
| TJ | Operating junction temperature range | 0 – 125 |
| IO(MAX) | Maximum output current | 1.5 |
| IL(MIN) | Minimum load current | 3.5 mA typical, 12 mA maximum |
Can LM317 boost voltage?
The LM317 is a buck converter or a step-down regulator and is not suitable as a boost converter.
Is the LM317 series a variable power supply?
But this circuit can be created with a single IC is lm317 based variable power supply. The LM317 or LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to the 37V output range, And has many special features that I like are :
What kind of voltage regulator is the 317?
The 317 is a monolithic integrated circuit with adjustable 3-terminal positive-voltage regulator designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 V to 37 V range.
How does the LM317 adjustable regulator improve ripple rejection?
However the inclusion of C1, C3 and D1 helps to improve ripple rejection greatly and enhances the overall regulation of the circuit. C1 cancels out all possible ripple generations across R2 while it’s being operated and C3 filters out all residual ripple factors.LM317 Adjustable Regulator with Improved Ripple Rejection Circuit Diagram, Image
What are the features of the LM317 eleccircuit?
The LM317 or LM117 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 1.5A over a 1.2V to the 37V output range, And has many special features that I like are : Line Regulation 0.01% Load Regulation 0.3% Prevent the deposition temperature. Short-circuit protection.
