LP3985IM5X-4.7 - Texas Instruments

Manufacturer Part Number

LP3985IM5X-4.7

Manufacturer

texas-instruments

Introduction

The LP3985IM5X-4.7 by Texas Instruments is a low dropout (LDO) linear voltage regulator designed for power management in various electronic devices, offering a fixed output voltage of 4.7V.

Product Features and Performance

Low dropout voltage: 0.1V @ 150mA

Fixed output voltage: 4.7V

Maximum input voltage: 6V

Output current capability: 150mA

Quiescent current: 150µA

Maximum supply current: 250µA

Power supply rejection ratio (PSRR): 50dB to 40dB from 1kHz to 10kHz

Integrated protection features: overcurrent, overtemperature, and short circuit protection

Control features include an enable pin for power saving

Product Advantages

High power efficiency due to low dropout voltage and low quiescent current

Robust protection features enhance the safety and durability of the powered device

Small form factor (SOT-23-5 package) suited for space-constrained applications

Key Technical Parameters

Voltage Input (Max): 6V

Voltage Output (Min/Fixed): 4.7V

Voltage Dropout (Max): 0.1V @ 150mA

Current Output: 150mA

Current Quiescent (Iq): 150 µA

PSRR: 50dB ~ 40dB (1kHz to 10kHz)

Quality and Safety Features

Overcurrent, overtemperature, and short circuit protection for reliable operation across -40°C to 125°C

Compatibility

Ideal for applications requiring up to 4.7V fixed output voltage and 150mA current

Surface mount technology (SMT) compatibility for streamlined PCB design

Application Areas

Mobile phones

Personal digital assistants (PDAs)

Portable media players

Wireless and networking devices

Product Lifecycle

This product is marked as obsolete, with potential limited availability

For new designs, consider seeking replacements or upgrades through Texas Instruments product lineup

Several Key Reasons to Choose This Product

Texas Instruments' reputation for high-quality and reliable power management solutions

Extremely low dropout for enhanced power efficiency

Comprehensive protection features safeguard the end application

Compact package size suitable for portable and miniaturized electronic devices

Although obsolete, suitable for repairs or maintenance of existing designs where component size and specifications match