LM317MDT LM317M TO-252 – Original Voltage Regulator ICs

LM317MDT LM317M TO‑252 Voltage Regulator IC – Authentic, Reliable

Technical Details

• Part Number: LM317MDT (LM317M)
• Regulator Type: Adjustable positive voltage regulator
• Output Voltage Range: 1.2 V to 37 V
• Maximum Output Current: 500 mA
• Quiescent Current (I_Q): ~10 mA
• Input Voltage (Max): 40 V
• PSRR: 80 dB @ 120 Hz
• Protection: Thermal shutdown, over-current limiting, safe-area compensation, short-circuit protection
• Operating Temperature Range: 0 °C to +125 °C
• Mounting Type: Surface Mount (SMT), TO‑252 (DPAK)

Features

• Adjustable output via two external resistors
• High current capability up to 500 mA
• Robust internal thermal and current protection
• Safe-area compensated for stable operation across conditions
• High ripple rejection (up to ~80 dB with proper capacitors)
• Simple configuration — no fixed output voltages needed

Applications

• Adjustable voltage power supplies
• Battery chargers and LED drivers
• Constant current or constant voltage sources
• General-purpose regulation in industrial and commercial circuits
• Prototyping and design platforms requiring flexible supply rails

Physical Attributes

• Pins: 3 (IN, OUT, ADJ + heatsink tab)
• Dimensions: 6.6 mm × 6.2 mm × 2.4 mm (L × W × H max)
• Weight: ~0.063 g
• Mounting Type: Surface Mount (SMT), TO‑252 / DPAK

Package Includes

• 1 × LM317MDT LM317M adjustable voltage regulator IC – TO‑252 surface mount package