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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 2A 8-DFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：0.5V
- Voltage - Output (Max)：5.75V
- Voltage Dropout (Max)：0.25V @ 2A
- Current - Output：2A
- Current - Quiescent (Iq)：300 µA
- Current - Supply (Max)：3 mA
- PSRR：70dB ~ 40dB (1kHz ~ 1MHz)
- Control Features：Enable, Power Good
- Protection Features：Over Current, Over Temperature, Reverse Polarity
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-VDFN Exposed Pad
- Supplier Device Package：8-DFN (4x4)
- Grade：-
- Qualification：-
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Overview
The LD39200DPUR is a positive adjustable linear regulator from STMicroelectronics, delivering up to 2 A output current within an input voltage range of 1.25 V to 6.0 V. It features ultra-low dropout characteristics with a typical value of 130 mV at full load and maintains high power supply rejection ratio performance. The device operates reliably across a junction temperature range of -40 °C to 125 °C and is housed in an 8-lead DFN package measuring 4 x 4 mm.
Feature Summary
- Integrated reverse current protection prevents backflow when the input voltage drops below the output level.
- Includes dedicated enable logic control for shutdown mode operation and a Power Good flag pin for status monitoring.
- Provides comprehensive protection against short circuits via constant current limiting and thermal overload conditions.
Applications
- Telecommunications infrastructure equipment
- Consumer electronic devices
- Computers and peripheral systems
Procurement Notes
Verify the specific suffix DPUR indicates the 8-pin DFN (4x4 mm) package configuration distinct from other variants. Confirm RoHS3 compliance and moisture sensitivity level requirements during integration planning. Ensure ordering documentation matches the exact manufacturer part number to avoid package discrepancies.
Selection Notes
Select this component for designs requiring high current capability with minimal voltage drop under heavy loads. The adjustable output allows flexible voltage setting starting from 0.5 V. Consider the 8-pin footprint constraints and verify that ceramic output capacitors meet stability requirements for the chosen application environment.
Part Context
This device belongs to the LD39200 series of low-dropout regulators designed for efficiency and reliability. It complements STMicroelectronics' broader portfolio of PMIC solutions by offering robust protection features alongside high PSRR performance suitable for sensitive analog and digital circuitry.
Replacement Considerations
The LD39200PUR serves as a direct alternative within the same family but utilizes a 6-lead DFN (3x3 mm) package instead of the 8-lead variant. Verify pin compatibility and physical footprint differences before substituting in existing layouts.
