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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- 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：500mA
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：80dB ~ 65dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
Download product information
Overview
The LM217MDT is a monolithic positive adjustable voltage regulator from the LM217M series, manufactured by STMicroelectronics. It is housed in a DPAK surface-mount package and designed to supply load currents exceeding 500 mA. The output voltage is continuously adjustable over a range of 1.2 V to 37 V using an external resistive divider. Key electrical characteristics include a typical line regulation of 0.01% and load regulation of 0.1%. The device incorporates thermal overload protection, short-circuit protection, and output transition safe area compensation for robust operation.
Feature Summary
- Provides positive adjustable voltage regulation with output current capability exceeding 500 mA
- Features internal thermal overload protection and short-circuit protection mechanisms
- Includes output transition safe area compensation for reliable high-voltage floating operation
- Utilizes a single external resistive divider network to set nominal output voltage
Applications
- Positive adjustable voltage regulators
- Local voltage regulation cards
- On-card regulation
- Programmable precision output regulators
- Current regulators
Procurement Notes
Verify that the ordering suffix 'DT' corresponds specifically to the DPAK package configuration as defined in the manufacturer's official documentation. Confirm that the component meets the required operating junction temperature range of -40°C to 125°C for your specific application environment. Ensure compatibility with the intended surface-mount assembly process.
Selection Notes
Select this component when a medium-current adjustable regulator is required in a compact surface-mount form factor. The LM217MDT is suitable for applications needing output voltages between 1.2 V and 37 V with load currents up to 500 mA. Consider the thermal resistance characteristics of the DPAK package for heat dissipation requirements in your design.
Part Context
The LM217MDT belongs to the LM217M family of medium-current adjustable voltage regulators produced by STMicroelectronics. This family includes variants such as the LM217M (TO-220) and LM217MT (TO-220 Tape & Reel). The LM217MDT specifically denotes the DPAK package version, offering a surface-mount alternative to the through-hole TO-220 packages within the same functional family.
Replacement Considerations
LM217M (TO-220 package)
FAQ
What is the maximum input-to-output differential voltage?
The absolute maximum rating for the input-to-output differential voltage is 40 V.
How is the output voltage adjusted?
The nominal output voltage is selected by means of only a resistive divider connected between the output and adjustment terminals.
Does the device require external capacitors for stability?
Normally no capacitors are needed unless the device is situated far from the input filter capacitors. An output capacitance can be used to swamp excessive ringing effects.
