IC REG LINEAR 15V 1A TO220-3 LM340 is a 1.5-A fixed voltage regulator. This article mainly covers datasheet, pinout, circuit, applications, and more details about LM340 voltage regulator. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and Ics in stock. Welcome RFQ!
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Sep 14, 2021
Jodie Norris
LM340T-5
IC REG LINEAR 15V 1A TO220-3
LM340 is a 1.5-A fixed voltage regulator. This article mainly covers datasheet, pinout, circuit, applications, and more details about LM340 voltage regulator. Furthermore, there is a huge range of semiconductors, capacitors, resistors, and Ics in stock. Welcome RFQ!
LM340T-15
| Pin Name | Pin NO. | I/O | Description |
| INPUT | 1 | I | Input voltage pin |
| GND | 2 | I/O | Ground pin |
| OUTPUT | 3 | O | Output voltage pin |
Footprint
3D Model
The LM340 is a 3-terminal positive voltage regulator that employs internal current-limiting, thermal shutdown, and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over the 1.5-A output current.
Texas Instruments LM340T-15 technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM340T-15.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | NRND (Last Updated: 2 days ago) | |
| Mount | Through Hole | |
| Mounting Type | Through Hole | |
| Package / Case | TO-220-3 | |
| Number of Pins | 3Pins | |
| Weight | 2.299997g | |
| Operating Temperature | 0°C~125°C | |
| Packaging | Tube | |
| JESD-609 Code | e0 | |
| Part Status | Not For New Designs | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 3Terminations | |
| Termination | Through Hole | |
| ECCN Code | EAR99 | |
| Terminal Finish | Tin/Lead (Sn/Pb) | |
| Terminal Position | SINGLE | |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | |
| Number of Functions | 1Function | |
| Terminal Pitch | 2.54mm |
| Product Attribute | Attribute Value | |
|---|---|---|
| Reach Compliance Code | not_compliant | |
| Current Rating | 1A | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Base Part Number | LM340 | |
| Pin Count | 3 | |
| Number of Outputs | 1Output | |
| Qualification Status | Not Qualified | |
| Voltage - Input (Max) | 35V | |
| Output Voltage | 15V | |
| Output Type | Fixed | |
| Max Output Current | 1A | |
| Voltage | 15V | |
| Max Supply Voltage | 30V | |
| Min Supply Voltage | 17.5V | |
| Output Configuration | Positive | |
| Quiescent Current | 8mA | |
| Accuracy | 2 % | |
| Max Output Voltage | 15V | |
| Output Voltage 1 | 15V |
| Product Attribute | Attribute Value | |
|---|---|---|
| Number of Regulators | 1Regulator | |
| Min Input Voltage | 17.7V | |
| Protection Features | Over Temperature, Short Circuit | |
| Voltage Dropout (Max) | 2V @ 1A | |
| PSRR | 80dB (120Hz) | |
| Dropout Voltage | 2.9V | |
| Dropout Voltage1-Nom | 2V | |
| Power Supply Rejection Ratio (PSRR) | 80dB | |
| Nominal Output Voltage | 15V | |
| Output Voltage Accuracy | 2 % | |
| Height | 4.7mm | |
| Length | 14.986mm | |
| Width | 10.16mm | |
| Thickness | 4.572mm | |
| REACH SVHC | No SVHC | |
| RoHS Status | Non-RoHS Compliant | |
| Lead Free | Contains Lead |
Output Current up to 1.5 A
Available in Fixed 5-V, 12-V, and 15-V Options
Output Voltage Tolerances of ±2% at TJ = 25°C (LM340A)
Line Regulation of 0.01% / V of at 1-A Load (LM340A)
Load Regulation of 0.3% / A (LM340A)
Internal Thermal Overload, Short-Circuit and SOA Protection
Available in Space-Saving SOT-223 Package
Output Capacitance Not Required for Stability
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According to the formula, this simple circuit produces the lm340 variable output voltage.
Formula: Vout=5v+ (5v/R1+IQ) R2
LM340 Circuit
Increasing the LM340's Current Output
This circuit provides up to 5A of the regulated output. Q1 is turned off at low currents. It is based only when the current exceeds 600mA.
LM340 Current
Texas Instruments (TI) is a global semiconductor firm originating in 1958 and nowadays it has over 30,000 employees who design, conduct, and sell analog and product-differentiating embedded processing components in 35 countries. Aimed at changing the world of tech, TI has put great effort into becoming the solution provider coupled with a vision.
Download datasheets and manufacturer documentation for LM340T-15
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