LF33CV-DG - STMicroelectronics

Manufacturer Part Number

LF33CV-DG

Manufacturer

stmicroelectronics

Introduction

LF33CV-DG is an obsolete low-dropout (LDO) linear voltage regulator designed for power management, specifically providing steady 3.3V output from an input up to 16V.

Product Features and Performance

Fixed output with a regulated voltage of 3.3V

Capable of handling input voltages up to 16V

Maximum current output of 500mA

Voltage dropout maximum of 0.7V at 500mA load

Good power supply rejection ratio ranging from 80dB to 65dB

Product Advantages

Helps maintain a constant voltage level despite changes in input voltage

Provides efficient current control

Over Current and Over Temperature protections enhance reliability and safety

Key Technical Parameters

Output Type: Fixed

Voltage Input (Max): 16V

Voltage Output (Min/Fixed): 3.3V

Current Output: 500mA

Voltage Dropout (Max): 0.7V @ 500mA

Current Quiescent (Iq): 1 mA

Current Supply (Max): 12 mA

Quality and Safety Features

Includes Over Current and Over Temperature protections

Consistently operates within a wide temperature range of -40°C to 125°C

Compatibility

Mounting Type: Through Hole

Package / Case: TO-220-3

Application Areas

Ideal for use in systems that require stable and regulated power delivery despite varying input voltage

Product Lifecycle

Status: Obsolete

No direct replacements or upgrades currently available

Several Key Reasons to Choose This Product

Reliable performance with over temperature and over current protections

Consistent operation under wide temperature ranges

Low dropout feature beneficial in low-voltage conditions

Suitable for applications where space and power efficiency are critical due to compact TO-220 package