LP3990MF-3.3 - Texas Instruments

Manufacturer Part Number

LP3990MF-3.3

Manufacturer

texas-instruments

Introduction

The LP3990MF-3.3 is a member of the Power Management Integrated Circuits (PMIC), focused on Voltage Regulators - Linear, specifically Low Drop Out (LDO) Regulators, designed for stable and efficient power supply.

Product Features and Performance

Positive Output Configuration

Fixed Output Type

Single Regulator

Maximum Input Voltage of 6V

3V Output Voltage

Voltage Dropout maximum of 0.2V at 150mA

Output Current of 150mA

Quiescent Current of 80 µA

Supply Current maximum of 120 µA

Power Supply Rejection Ratio (PSRR) ranges from 55dB to 35dB for 1kHz to 10kHz

Features Enable Control

Over Temperature and Short Circuit Protection

Product Advantages

Low Drop Out making it efficient for low voltage applications

Minimal Quiescent Current enhancing energy efficiency

Robust Protection Features ensure reliability under over-temperature and short-circuit conditions

Efficient Power Supply Rejection Ratio (PSRR) ensures stable output despite variations in input voltage

Key Technical Parameters

Voltage - Input (Max): 6V

Voltage - Output (Min/Fixed): 3.3V

Voltage Dropout (Max): 0.2V @ 150mA

Current - Output: 150mA

Current - Quiescent (Iq): 80 µA

Current - Supply (Max): 120 µA

PSRR: 55dB ~ 35dB (1kHz ~ 10kHz)

Quality and Safety Features

Over Temperature Protection

Short Circuit Protection

Compatibility

The SOT-23-5 packaging ensures compatibility with common surface-mount technology, facilitating integration into a variety of board designs.

Application Areas

Suitable for low-power applications requiring a stable and efficient power supply, including but not limited to portable devices, low-power electronics, and embedded systems.

Product Lifecycle

Obsolete - This status indicates that the product is no longer being produced by Texas Instruments, and customers are encouraged to seek replacements or upgrades for their designs.

Several Key Reasons to Choose This Product

Efficient power regulation with low dropout feature for enhanced battery life

Robust safety features for reliable operation in adverse conditions

Low quiescent current for energy-saving in idle or standby modes

Compatible with surface-mount technology for easy integration into a multitude of designs

Given its obsolescence, ideal for maintaining or repairing existing systems where this specific model is a requirement