Overview
The LM317EMP/NOPB is an adjustable 3-pin positive voltage regulator produced by Texas Instruments. This component is part of the LM317-N series and is known for its versatility and ease of use. It is capable of supplying up to 1.5 A of output current over a wide output voltage range of 1.25 V to 37 V. The regulator is designed to operate within a temperature range of 0°C to 125°C, making it suitable for a variety of applications.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM317EMP/NOPB |
| Package | SOT-223-4 (TO-261-4, TO-261AA) |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 37 V |
| Voltage - Output (Min/Fixed) | 1.25 V |
| Voltage - Output (Max) | 37 V |
| Output Current | 1.5 A |
| Operating Temperature Range | 0°C to 125°C |
| Ripple Rejection | 80 dB @ 120 Hz |
| Line Regulation | Typ. 0.01%/V |
| Load Regulation | Typ. 0.1% |
| RoHS Status | Compliant |
Key Features
- Adjustable output voltage from 1.25 V to 37 V
- High output current capability of up to 1.5 A
- Excellent line and load regulation (Typ. 0.01%/V line regulation, Typ. 0.1% load regulation)
- High ripple rejection of 80 dB @ 120 Hz
- Short-circuit protected output and thermal overload protection
- No external capacitors required unless the device is far from the input filter capacitors
- Can be used as a precision current regulator by connecting a fixed resistor between the adjustment pin and output
- Lead-free and RoHS compliant
Applications
The LM317EMP/NOPB is suitable for a wide range of applications, including:
- Power supplies requiring adjustable output voltages
- Electronic devices needing high current and stable voltage regulation
- Industrial control systems and automation
- Medical devices and equipment
- Aerospace and defense applications due to its robust temperature range and reliability
Q & A
- What is the output voltage range of the LM317EMP/NOPB?
The output voltage range is adjustable from 1.25 V to 37 V.
- What is the maximum output current of the LM317EMP/NOPB?
The maximum output current is 1.5 A.
- What is the operating temperature range of the LM317EMP/NOPB?
The operating temperature range is from 0°C to 125°C.
- Does the LM317EMP/NOPB require external capacitors?
No external capacitors are required unless the device is situated more than 6 inches from the input filter capacitors.
- Is the LM317EMP/NOPB RoHS compliant?
- What is the ripple rejection of the LM317EMP/NOPB?
The ripple rejection is 80 dB @ 120 Hz.
- Can the LM317EMP/NOPB be used as a current regulator?
- What kind of protection does the LM317EMP/NOPB offer?
- What package types are available for the LM317EMP/NOPB?
- How do I set the output voltage of the LM317EMP/NOPB?
