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LM350 Voltage Regulator: Price, Pinout and Datasheet

IC REG LINEAR POS ADJ 3A TO220-3 Hello everyone, I am Rose. Today I will introduce LM350 to you. The LM350 is a three?terminal adjustable output positive voltage regulator. This article mainly introduces price, pinout, datasheet, and other detailed information about Texas Instruments LM350.

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Sep 6, 2021

James Locke

3A Adjustable Regulators by LM350

 

IC REG LINEAR POS ADJ 3A TO220-3

Hello everyone, I am Rose. Today I will introduce LM350 to you. The LM350 is a three−terminal adjustable output positive voltage regulator. This article mainly introduces price, pinout, datasheet, and other detailed information about Texas Instruments LM350.

LM350T

12850In Stock
Min.: 1 Mult.: 1
Quantity Unit Price Ext. Price
1+ $2.50548$2.51
10+ $2.36366$23.64
100+ $2.22987$222.99
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1000+ $1.98458$1984.58
Unit Price:$2.50548
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LM350 Description

The LM350 is a three−terminal adjustable output positive voltage regulator that capable of supplying in excess of 3.0 A over an output voltage range of 1.2 V to 33 V by connecting the adjustment pin directly to the ground.  

 

It can operate within a temperature range of – 40°C to + 125°C.   This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. 

 

Further, it employs internal current limiting, thermal shutdown, and safe area compensation, making it essentially blow−out proof. This regulator is used in a variety of applications like local and on-card regulation. 

 

By using this regulator we can design a programmable o/p regulator, an adjustable switching regulator otherwise it is used as a precision current regulator by connecting a fixed resistor between the adjustment and output

LM350 Pinout

Pin Number Pin Name Description
1 Adjust This pin adjusts the output voltage
2 Output Voltage (Vout) The regulated output voltage set by the adjusted pin can be obtained from this pin
3 Input Voltage (Vin) The input voltage which has to be regulated is given to this pin

LM350 CAD Model

Symbol

Footprint

3D Model

LM350 Features

-Delivers an output current of 3 Amps.

-Output voltage is adjustable from 1.25V to 33V with 1% tolerance.

-Provides a load regulation of 0.1% and a line regulation of 0.005%/V.

-Maximum Input to output voltage difference is 35V, recommended 15V

-Internal Thermal Overload Protection

-Internal Short Circuit Current Limiting Constant with Temperature

-Output Transistor Safe Area Compensation

-Floating Operation for High Voltage Applications

-Very high dissipation of around 85 watts.

-It removes stored fixed voltages

-Operating junction temperature is 125°C

-Eliminates Stocking Many Fixed Voltages

-Pb−Free Packages are Available*

-Available in 3 pins To-220, SOT223, TO263 Package

Specifications

Texas Instruments LM350T technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM350T.

LM350T Tech Specifications

Texas Instruments LM350T technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments LM350T.

Product Attribute Attribute Value
Lifecycle StatusNRND (Last Updated: 1 week ago)
MountThrough Hole
Mounting TypeThrough Hole
Package / CaseTO-220-3
Number of Pins3Pins
Operating Temperature0°C~125°C
PackagingTube
JESD-609 Codee0
Part StatusNot For New Designs
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations3Terminations
ECCN CodeEAR99
Terminal FinishTin/Lead (Sn/Pb)
Max Power Dissipation25W
Terminal PositionSINGLE
Number of Functions1Function
Product Attribute Attribute Value
Terminal Pitch2.54mm
Current Rating3A
Base Part NumberLM350
Pin Count3
Number of Outputs1Output
Output Voltage33V
Output TypeAdjustable
Max Output Current3A
Max Supply Voltage35V
Min Supply Voltage3V
Output ConfigurationPositive
Power Dissipation25W
Max Output Voltage33V
Voltage - Output (Min/Fixed)1.25V
Number of Regulators1Regulator
Min Input Voltage4.2V
Product Attribute Attribute Value
Protection FeaturesOver Current, Over Temperature, Short Circuit
PSRR86dB ~ 65dB (120Hz)
Reference Voltage1.3V
Dropout Voltage2.3V
Dropout Voltage1-Nom2.3V
Min Output Voltage1.2V
Min Current Limit3A
Line Regulation-Max (%/V)0.07
Height4.7mm
Length14.986mm
Width10.16mm
Thickness4.572mm
REACH SVHCNo SVHC
Radiation HardeningNo
RoHS StatusNon-RoHS Compliant
Lead FreeLead Free
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LM350 Schematic Diagram

LM350 Alternatives

Part Number Description Manufacturer
LM3503SQX-25/NOPBDRIVERS AND INTERFACES Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85 Texas Instruments
LM3503SQ-25DRIVERS AND INTERFACES LED DISPLAY DRIVER, QCC16, TLLP-16 Texas Instruments
LM3503SQ-25/NOPBDRIVERS AND INTERFACES Dual-Display Constant Current LED Driver with Analog Brightness Control 16-WQFN -40 to 85 Texas Instruments

Where to use LM350?

If you want to provide more than 1.5A you can use the LM350 Regulator IC which can source up to 3A. So, if you are looking for a variable voltage regulator to set voltage between 1.25V to 33V and to deliver current up to 3A then this regulator IC might be the right choice for your application. Apart from this the IC also has a current regulator mode which makes it suitable for battery charging applications.

How to use LM350?

Most of the voltage regulators use an input and output capacitor. LM350 working is similar to other voltage regulators. You can change its output voltage from 1.25V to 33V by adjusting the values of resistors connected between the adjustable and output pin. The output capacitor improves regulation and transient response. This device provides an extremely good load regulation. To maximize performance, the resistor R1 should be directly connected to the output to achieve good regulation.

 

LM350 Applications

-Used in Battery chargers

-Used in Switching Regulators

-Used in Temperature Controllers

-Used in Light Controller

-Used in Tracking Pre-regulator

-Used in Positive voltage regulations

-Used in Current limiting circuits

-Used in Variable power supply

-Used in Reverse polarity circuits

-Used in Commonly used in Desktop PC, DVD and other consumer products

-Used in In motor control circuits

LM350 Package

LM350 Manufacturer

Texas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue.TI also produces TI digital light processing technology and education technology products including calculators, microcontrollers, and multi-core processors. The company holds 45,000 patents worldwide as of 2016.

Datasheet PDF

LM350T Documents

Download datasheets and manufacturer documentation for LM350T

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