LM317LIPK

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LM317LIPK

IC REG LIN POS ADJ 0.1A SOT89-3

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  • Mfr. Parte #LM317LIPK
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Especificaciones

Part Status Active
Output Configuration Positive
Output Type Adjustable
Number of Regulators 1
Voltage - Input (Max) 40V
Voltage - Output (Min/Fixed) 1.2V
Voltage - Output (Max) 37V
Current - Output 100mA
Current - Quiescent (Iq) 100 µA
PSRR 75dB ~ 60dB (120Hz)
Protection Features Over Current, Over Temperature, Short Circuit
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package TO-243AA
Supplier Device Package SOT-89-3
Packaging Cut Tape (CT), Tape & Reel (TR)

Descripción general

Description

The LM317LIPK is a versatile, adjustable voltage regulator designed to provide a stable output voltage ranging from 1.25V to 37V with an output current capacity of up to 100 mA. It is part of the LM317 series, renowned for their reliability in regulating voltage in a broad range of electronics applications.
Key features include internal current limiting, thermal overload protection, and safe area compensation, which enhance device reliability by preventing damage under unexpected conditions. The LM317LIPK is particularly suited for battery-powered devices, small power supplies, and portable equipment due to its efficient regulation capabilities and compact size.
For operation, the device requires two external resistors to set the desired output voltage, offering flexibility in various applications. Its ease of use, coupled with a low dropout voltage, makes it a popular choice among engineers and hobbyists alike. Additionally, the LM317LIPK is available in various package types to accommodate different mounting needs.
Overall, the LM317LIPK provides an efficient and cost-effective solution for applications needing a simple, adjustable power supply.

Features

The LM317LIPK is a versatile voltage regulator known for its ability to provide an adjustable output voltage ranging from 1.25V to 37V with an input-output differential of 3V to 40V. It can supply up to 100mA output current, making it suitable for low-power applications. Key features include:
1. Adjustability: Allows for precise control of output voltage via external resistors.
2. Thermal Overload Protection: Prevents damage due to excessive temperature.
3. Short-Circuit Protection: Safeguards the device and connected components from overcurrent conditions.
4. Safe Operating Area Protection: Ensures reliable performance over a range of conditions.
5. Low Dropout Voltage: Requires a minimal difference between input and output voltages.
6. High Ripple Rejection: Effectively minimizes output voltage fluctuations due to input ripples.
These features make the LM317LIPK suitable for applications such as power supply design, battery chargers, and any circuit requiring a stable voltage output. Its compact package and robust performance make it a popular choice in electronics design.

Package

The LM317LIPK is a voltage regulator available in a TO-92 package. It is a three-terminal adjustable regulator capable of supplying up to 100 mA of output current, with an output voltage range of 1.25V to 37V. The TO-92 package is compact and commonly used for low-power applications.

Pinout

The LM317LIPK is a three-pin adjustable voltage regulator. Its pin functions are as follows:
1. Input (Vin): This pin is connected to the unregulated input voltage. It supplies power to the internal circuitry of the LM317 and regulates the output voltage.
2. Output (Vout): This pin provides the regulated output voltage, which can be adjusted using external resistors connected between the output and adjustment pins. The output voltage is typically set to a desired level between 1.25V to 37V based on the resistor values.
3. Adjustment (Adj): This pin is used to adjust the output voltage. By connecting a resistor between the adjustment pin and output pin, and another resistor between the adjustment pin and ground, you can set the output voltage to a desired level according to the formula: Vout = 1.25V * (1 + R2/R1) + Iadj * R2, where Iadj is typically small enough to be neglected in most applications.
The LM317 is commonly used in power supply circuits where a stable, adjustable output voltage is required.

Manufacturer

The LM317LIPK is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronics worldwide. TI is known for its innovation in the semiconductor industry and provides products that cater to a wide range of applications, including industrial, automotive, personal electronics, and communications. The company is a leader in analog and embedded processing products, which are crucial in the development and functioning of modern electronic devices.

Application

The LM317LIPK is a versatile voltage regulator used primarily for adjustable power supply applications. It is suitable for battery chargers, constant current regulators, and adjustable DC power supplies. Additionally, it's used in various electronics prototypes, sensor power conditioning, and communication equipment. Its ability to provide a stable output voltage makes it ideal for precision tuning in small electronic devices and circuit designs.

Equivalent

The LM317LIPK is a linear voltage regulator. Equivalent products include the LD1117 from STMicroelectronics, NCP1117 from ON Semiconductor, and TLV1117 from Texas Instruments. These equivalents offer similar adjustable voltage regulation capabilities and pin configurations, but always check the datasheets for specific performance and compatibility requirements.

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