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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 2A 6-DFN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- 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：6-VDFN Exposed Pad
- Supplier Device Package：6-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The LD39200PU33R is a fixed-output linear regulator from STMicroelectronics, delivering a constant 3.3 V at up to 2 A output current. It operates within an input voltage range of 1.25 V to 6 V and features a typical dropout voltage of 130 mV at full load. The device provides high power supply rejection ratio (PSRR) of 70 dB at 1 kHz and includes reverse current protection, short-circuit current limiting, and thermal shutdown. It incorporates enable logic control and a Power Good flag, with quiescent current reduced to 10 nA in shutdown mode.
Feature Summary
- Ultra-low dropout performance ensures efficient regulation under minimal voltage headroom conditions.
- Integrated reverse current protection prevents backflow when the input voltage drops below the output level.
- Dedicated enable pin allows precise power management by reducing standby consumption significantly.
Applications
- Telecom infrastructure systems
- Consumer electronics devices
- Computers and peripheral equipment
Procurement Notes
Verify component authenticity through official manufacturer channels or authorized distributors. Confirm package integrity and RoHS compliance status prior to integration. Ensure storage conditions meet moisture sensitivity level requirements to maintain reliability during soldering processes.
Selection Notes
Select this regulator for applications requiring high current capability with strict noise sensitivity constraints. The fixed 3.3 V output eliminates external resistor networks, simplifying design complexity. Consider the DFN-6 package dimensions for PCB layout optimization where space efficiency is critical.
Part Context
This component belongs to the LD39200 series of low-dropout regulators designed for high-performance power management. It shares architectural similarities with other members like LD39200PUR but differs in output configuration. The series targets telecom and consumer markets needing reliable voltage regulation.
Replacement Considerations
LD39200DPUR serves as an alternative within the same family, offering adjustable output voltage in an 8-pin DFN package. Verify pin compatibility and thermal characteristics before substitution.
