LDFM33PVR

$0.61

Description：IC REG LINEAR 3.3V 500MA 6-DFN
Series：-
Mfr：STMicroelectronics
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:75585b524dd3 Category: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Brand: STMicroelectronics

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Product introduction

Product Detailed Parameters

Description：IC REG LINEAR 3.3V 500MA 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)：16V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Voltage Dropout (Max)：0.3V @ 500mA
Current - Output：500mA
Current - Quiescent (Iq)：800 µA
Current - Supply (Max)：-
PSRR：60dB ~ 52dB (120Hz ~ 100kHz)
Control Features：Enable, Power Good
Protection Features：Over Current, Over Temperature, Under Voltage Lockout (UVLO)
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：6-VDFN Exposed Pad
Supplier Device Package：6-DFN (2x2)
Grade：-
Qualification：-

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LDFM33PVR

Overview

The LDFM33PVR is a fixed-output linear voltage regulator manufactured by STMicroelectronics, providing a stable 3.3V output with a maximum current capacity of 500mA. It operates within an input voltage range up to 16V and features a typical dropout voltage of 0.3V at full load. The device incorporates comprehensive protection mechanisms including overcurrent limiting, thermal shutdown, and under-voltage lockout (UVLO). Key electrical specifications include a quiescent current of 800 µA and power supply rejection ratios ranging from 60dB at 120Hz to 52dB at 100kHz. It is housed in a compact 6-DFN (2x2) surface-mount package with a bare pad for enhanced thermal performance.

Feature Summary

Integrated safety protections including overcurrent limiting, thermal shutdown, and under-voltage lockout.

Applications

Procurement Notes

Verify the specific package variant and manufacturer lot codes against official datasheets before integration. Confirm that the 6-DFN footprint matches your PCB layout requirements, particularly regarding the exposed thermal pad connection. Ensure compliance with RoHS3 standards if required by your manufacturing environment. Cross-reference ordering suffixes to guarantee exact pinout and electrical characteristics match your design specifications.

Selection Notes

Select this component when a low-cost, fixed 3.3V rail is needed for moderate current loads up to 500mA. The 6-DFN package suits space-constrained designs requiring efficient heat dissipation through the bottom pad. Consider the 800 µA quiescent current for applications where standby power consumption is a secondary concern compared to cost and simplicity. Verify input voltage stability remains within the 16V maximum limit during all operating conditions.

Part Context

This part belongs to the LDFM series of low-dropout regulators from STMicroelectronics. These devices are designed for general-purpose power management tasks in consumer electronics and industrial equipment. The series offers various fixed output voltages and current ratings, sharing common architectural features such as robust protection circuits and compact packaging options suitable for automated surface-mount assembly processes.