STMicroelectronics

LDFM33PUR  

Linear & Switching Voltage Regulators

LDFM33PUR Description

The LDFM33PUR is a high-performance linear voltage regulator designed and manufactured by STMicroelectronics. This device is part of the Linear & Switching Voltage Regulators category and is specifically designed to provide a stable 3.3V output with a maximum current of 500mA. With a fixed output type and a positive output configuration, the LDFM33PUR is ideal for applications requiring precise voltage regulation and high efficiency.

LDFM33PUR Features

• Output Type: Fixed
• Voltage - Input (Max): 16V
• Current - Output: 500mA
• Number of Regulators: 1
• Output Configuration: Positive
• Product Status: Active
• REACH Status: REACH Unaffected
• Manufacturer: STMicroelectronics
• Voltage - Output (Min/Fixed): 3.3V
• Voltage Dropout (Max): 0.3V @ 500mA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Current - Quiescent (Iq): 800 µA
• PSRR: 60dB ~ 52dB (120Hz ~ 100kHz)
• ECCN: EAR99
• Mounting Type: Surface Mount
• Control Features: Enable, Power Good
• Protection Features: Over Current, Over Temperature, Under Voltage Lockout (UVLO)
• HTSUS: 8542.39.0001
• Package: Tape & Reel (TR)
• Base Product Number: LDFM33

The LDFM33PUR stands out from similar models due to its low voltage dropout of 0.3V at 500mA, ensuring efficient power regulation even at high loads. Its PSRR of 60dB to 52dB across a wide frequency range (120Hz to 100kHz) provides excellent noise filtering capabilities, making it suitable for applications sensitive to power supply noise.

LDFM33PUR Applications

The LDFM33PUR is ideal for a wide range of applications, including:

• Portable Electronics: Due to its low quiescent current and small form factor, it is perfect for battery-powered devices.
• Industrial Control Systems: Its robust protection features and high PSRR make it suitable for industrial applications where reliability is crucial.
• Telecommunications Equipment: The LDFM33PUR can provide stable power to sensitive communication equipment, ensuring consistent performance.
• Automotive Electronics: The device's ability to handle a wide input voltage range and its protection features make it suitable for automotive applications.

Conclusion of LDFM33PUR

The LDFM33PUR from STMicroelectronics is a versatile and efficient linear voltage regulator that offers a fixed 3.3V output with a maximum current of 500mA. Its unique combination of low voltage dropout, high PSRR, and robust protection features make it an excellent choice for a variety of applications, from portable electronics to industrial control systems. With its active product status and compliance with REACH and RoHS3 standards, the LDFM33PUR is a reliable and environmentally friendly solution for precise voltage regulation.

LDFM33PUR Documents

Download datasheets and manufacturer documentation for LDFM33PUR

Datasheets :

LDFM(50)      

HTML Datasheet :

LDFM(50)