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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 1.5A D2PAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：37V
- Voltage Dropout (Max)：-
- Current - Output：1.5A
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：80dB ~ 65dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-25°C ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：D2PAK
- Grade：-
- Qualification：-
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Overview
The LM217D2T-TR is a positive adjustable linear voltage regulator manufactured by STMicroelectronics, housed in a D2PAK surface-mount package. It delivers an output current exceeding 1.5 A with an adjustable output voltage range from 1.2 V to 37 V. The device supports a maximum input voltage of 40 V and features power supply rejection ratios ranging from 80 dB to 65 dB at 120 Hz. It operates within a temperature range of -25°C to 150°C and includes comprehensive protection mechanisms such as internal current limiting, thermal shutdown, and safe operating area control.
Feature Summary
- Provides continuous load current capability exceeding 1.5 amperes for high-power applications
- Enables precise output voltage setting between 1.2 V and 37 V using a single external resistive divider network
- Integrates complete protection suite including current limiting, thermal shutdown, and safe operating area compensation
Applications
- General-purpose positive adjustable voltage regulation in industrial equipment
- Local voltage regulation cards for distributed power distribution systems
- High-current adjustable power supplies requiring robust thermal performance
Procurement Notes
Verify the specific ordering suffix to confirm the tape and reel packaging configuration required for automated assembly processes. Ensure the selected variant matches the D2PAK footprint requirements of the target PCB design. Confirm compliance with relevant environmental directives such as RoHS standards before finalizing procurement orders for production runs.
Selection Notes
Select this component when designing circuits requiring adjustable output voltages up to 37 V with load currents surpassing 1.5 A. The D2PAK package offers superior thermal dissipation compared to smaller surface-mount alternatives, making it suitable for applications where heat management is critical. Verify that the input voltage does not exceed the 40 V maximum rating under all operating conditions.
Part Context
This part belongs to the LM217 family of monolithic integrated circuits designed as positive adjustable voltage regulators. It shares functional similarities with the LM317 but is optimized for specific manufacturing and performance characteristics defined by STMicroelectronics. The D2T-TR suffix indicates the specific surface-mount D2PAK package and tape-and-reel delivery format intended for high-volume surface mount technology assembly lines.
Replacement Considerations
Direct pin-compatible replacements include other manufacturers' versions of the LM217 or LM317 series in D2PAK packages. Verify that substitute components maintain identical electrical specifications, particularly the 1.5 A current rating and 40 V input limit, to ensure circuit compatibility without redesign.
