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LM317LMX
Linear Voltage Regulators 100-mA, 40-V, high-PSRR, adjustable linear voltage regulator 8-SOIC -40 to 125
LM317LMX
Linear Voltage Regulators 100-mA, 40-V, high-PSRR, adjustable linear voltage regulator 8-SOIC -40 to 125
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Manufacturer Part # : LM317LMX
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Package/Case: SOIC-8
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Brand: Texas Instruments
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Product Categories : Voltage Regulators - Linear, Low Drop Out (LDO) Regulators
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Service & Packaging
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About After Sales Service
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LM317LMX DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
The LM317LMX from Texas Instruments is a versatile voltage regulator IC that offers adjustable output voltage regulation for a wide range of applications. With a maximum output current of 100 mA, it is ideal for low-power circuits where precise voltage control is required. The device can operate over a broad input voltage range of 4.5V to 40V, making it suitable for various power supply designs
Key Features
- Ultra-High Precision Voltage
- High Current Capacity Available
- Safe and Reliable Design Ensured
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Output options | Adjustable Output | Iout (max) (A) | 0.1 |
| Vin (max) (V) | 40 | Vin (min) (V) | 4.2 |
| Vout (max) (V) | 38 | Vout (min) (V) | 1.2 |
| Noise (µVrms) | 38 | Iq (typ) (mA) | 0.05 |
| Thermal resistance θJA (°C/W) | 160 | Rating | Catalog |
| Load capacitance (min) (µF) | 0 | Regulated outputs (#) | 1 |
| Accuracy (%) | 3 | PSRR at 100 KHz (dB) | 63 |
| Dropout voltage (Vdo) (typ) (mV) | 1800 | Operating temperature range (°C) | -40 to 125 |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM317LMX?
The LM317LMX is a positive voltage regulator IC (Integrated Circuit) manufactured by Texas Instruments. It is a low dropout linear regulator capable of providing a stable output voltage from a variable input voltage source. The LM317LMX is commonly used in various power supply applications to regulate and control the output voltage.
How Does LM317LMX Work?
The LM317LMX operates by comparing a reference voltage to the output voltage and adjusting the pass device to maintain a constant output voltage. It can accept a wide range of input voltages and provide a stable output voltage with low dropout. The regulator is adjustable, allowing users to set the output voltage to the desired value through external resistors.
How Many Pins does LM317LMX have and What are the Functions of the Pinout Configuration?
The LM317LMX is available in a TO-252 (DPAK) package with three pins. The pinout configuration includes:
- Input (VIN): Pin for connecting the input voltage.
- Adjust (ADJ): Adjust pin used in conjunction with external resistors to set the output voltage.
- Output (VOUT): Pin for the regulated output voltage.
What are the Pros and Cons of LM317LMX?
Pros:
- Wide Input Voltage Range: Capable of accepting a wide range of input voltages.
- Adjustable Output: Allows for flexible output voltage settings based on application requirements.
- Low Dropout Voltage: Maintains a stable output voltage even when the input voltage is close to the output voltage.
- Thermal Shutdown Protection: Includes thermal shutdown protection to prevent the IC from overheating.
Cons:
- Heat Dissipation: May require a heat sink for higher current applications to dissipate heat effectively.
- External Components: Requires external resistors for voltage regulation, adding complexity to the circuit.
- Current Limitation: Certain LM317LMX variants have limited output current capabilities.
Are There Any Equivalents/Alternatives to LM317LMX for Recommendation?
- The LM350 from Texas Instruments is a higher current version of the LM317LMX and suitable for applications requiring more output current.
- Alternatives to the LM317LMX include the LT1083 and LT1763 from Linear Technology, which offer similar voltage regulation capabilities.
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