Texas Instruments LM317AMDTX/NOPB
- Part No.:
- LM317AMDTX/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
LM317AMDTX/NOPB.pdf
- Description:
- IC REG LIN POS ADJ 1.5A TO252-3
- Quantity:
-
Unit Price:$0
Ext Price:$0
- Payment:
-
- Shipping:
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LM317AMDTX/NOPB Information
- Specifications
- Product Details
- Comparison
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 37V
- Voltage Dropout (Max):
- -
- Current - Output:
- 1.5A
- Current - Quiescent (Iq):
- 10 mA
- Current - Supply (Max):
- -
- PSRR:
- 80dB ~ 65dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252-3
- Datasheet:
-
LM317AMDTX/NOPB.pdf
LM317AMDTX/NOPB – Texas Instruments Adjustable Voltage Regulator (TO-252)
Quick Answer The LM317AMDTX/NOPB is a high-performance adjustable three-terminal positive voltage regulator from Texas Instruments. It can provide an output voltage from 1.2V to 37V with up to 1.5A current (with proper heatsinking). Only two external resistors are needed to set the desired output voltage. It offers improved performance over the standard LM317, with better line/load regulation and higher reliability.
Current Stock at ICMASS: Strong inventory ready for immediate worldwide delivery.
Key Specifications
| Parameter | Value | Details |
|---|---|---|
| Manufacturer | Texas Instruments (TI) | LM317A Series |
| Part Number | LM317AMDTX/NOPB | TO-252 (DDPAK) Package |
| Output Voltage | 1.2V – 37V | Adjustable |
| Output Current | Up to 1.5A | With adequate heatsink |
| Dropout Voltage | ~2V (typ) | At full load |
| Line Regulation | 0.01%/V (typ) | Excellent |
| Load Regulation | 0.1% (typ) | Excellent |
| Operating Temperature | -40°C to +125°C | Junction |
| Protection Features | Thermal Shutdown, Short Circuit, Safe Operating Area | Built-in |
Why Choose LM317AMDTX/NOPB?
- Wider output voltage range and higher current capability (1.5A)
- Excellent line and load regulation
- TO-252 package provides superior thermal performance
- Simple design - only two external resistors required
- Improved "A" version with tighter tolerances and better reliability
- Industry-standard and widely used in professional designs
Typical Applications
- Variable / programmable power supplies
- Laboratory and bench power supplies
- Battery chargers and charging circuits
- LED current regulators
- Audio amplifier power supplies
- Industrial control systems
- FPGA / ASIC auxiliary power
- Solar and renewable energy regulators
LM317AMDTX/NOPB Alternatives & Cross Reference
| Model | Manufacturer | Output Voltage | Max Current | Package | Key Advantage | Best For |
|---|---|---|---|---|---|---|
| LM317AMDTX/NOPB | TI | 1.2–37V | 1.5A | TO-252 | Best balance & stock | General adjustable |
| LM317IDTX/NOPB | TI | 1.2–37V | 1.5A | TO-252 | Standard version | Cost sensitive |
| LM317G-AA3-R | UTC | 1.2–37V | 1A | SOT-223 | Smaller package | Space constrained |
| LM350 | TI | 1.2–33V | 3A | TO-220 | Higher current | High power |
| TPS7A4700 (LDO) | TI | Adjustable | 1A | QFN | Ultra-low noise | Precision applications |
Purchasing Information at ICMASS
- Stock Status: Strong inventory available
- MOQ: 100 pieces (samples welcome)
- Lead Time: 1-3 days for stock orders
- Shipping: Fast global delivery via DHL, UPS, FedEx
- Quality Guarantee: 100% genuine Texas Instruments components with full traceability
Get Competitive Quote – Contact us today for bulk pricing and technical support.
Frequently Asked Questions (FAQ)
Q1: What is the output voltage range of LM317AMDTX/NOPB? A: Adjustable from 1.2V to 37V using two external resistors.
Q2: What is the maximum output current? A: Up to 1.5A with proper heatsinking and thermal design.
Q3: What package does LM317AMDTX/NOPB use? A: TO-252 (DDPAK) surface mount package with excellent heat dissipation.
Q4: How do I set the output voltage? A: Use the formula: Vout = 1.25 × (1 + R2/R1). Standard resistor values are in the datasheet.
Q5: What is the minimum input voltage required? A: Vout + 2V (dropout voltage approximately 2V).
Q6: Is LM317AMDTX/NOPB in stock at ICMASS? A: Yes, we maintain strong inventory for fast global shipping.
Q7: What capacitors are recommended? A: 0.1µF input and 1µF output capacitors (tantalum or ceramic) for stability.
Q8: Can it be used as a constant current source? A: Yes, it is excellent for precision constant current applications such as LED drivers.
Q9: What is the advantage of the "A" version? A: Better line/load regulation, improved thermal performance, and tighter tolerances compared to standard LM317.
Q10: Do you offer volume pricing? A: Yes, competitive tiered pricing for quantities from 1K to 100K+.
Q11: What is the maximum input voltage? A: 40V absolute maximum.
Q12: Can you provide reference circuits or design support? A: Yes, we supply the official TI datasheet, typical application circuits, resistor calculators, and PCB layout advice.
Related Products
- LM1117IDTX-3.3/NOPB (Fixed 3.3V)
- LM317G-AA3-R (SOT-223 version)
- LM7805L-TA3-T (Fixed 5V)
- Other TI Linear Regulators
| Image |
|
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| Part Number | LM317AMDTX/NOPB | LM317AMDTX |
| Manufacturer | Texas Instruments | Texas Instruments |
| Series | - | - |
| Package/Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) |
| Product Status | Active | Obsolete |
| Output Configuration | Positive | Positive |
| Output Type | Adjustable | Adjustable |
| Number of Regulators | 1 | 1 |
| Voltage - Input (Max) | 40V | 40V |
| Voltage - Output (Min/Fixed) | 1.25V | 1.25V |
| Voltage - Output (Max) | 37V | 37V |
| Voltage Dropout (Max) | - | - |
| Current - Output | 1.5A | 1.5A |
| Current - Quiescent (Iq) | 10 mA | 10 mA |
| Current - Supply (Max) | - | - |
| PSRR | 80dB ~ 65dB (120Hz) | 80dB ~ 65dB (120Hz) |
| Control Features | - | - |
| Protection Features | Over Current, Over Temperature, Short Circuit | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C | -40°C ~ 125°C |
| Grade | - | - |
| Qualification | - | - |
| Mounting Type | Surface Mount | Surface Mount |
| Supplier Device Package | TO-252-3 | TO-252-3 |
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