LP5900SD-1.8 - Texas Instruments

Manufacturer Part Number

LP5900SD-1.8

Manufacturer

Texas Instruments

Introduction

The LP5900SD-1.8 is a low-dropout linear regulator designed for power-sensitive applications, providing a stable and precise voltage output.

Product Features and Performance

Output voltage of 1.8V with maximum input of 5.5V

Low dropout voltage of 0.15V at 150mA load

Maximum output current of 150mA

Quiescent current of 50 µA to minimize power loss

PSRR (Power Supply Rejection Ratio) of 85dB to 40dB between 100Hz and 100kHz

Enabled with control features for operational management

Protection against over temperature and short circuit conditions

Product Advantages

Highly efficient for power-sensitive applications

Low quiescent current enhances battery life in portable devices

High PSRR ensures stable operation despite varying input conditions

Key Technical Parameters

Voltage - Input (Max): 5.5V

Voltage - Output (Min/Fixed): 1.8V

Current - Output: 150mA

Voltage Dropout (Max): 0.15V @ 150mA

Current - Quiescent (Iq): 50 µA

PSRR: 85dB ~ 40dB (100Hz ~ 100kHz)

Quality and Safety Features

Built-in over temperature and short circuit protection

Thermal and current overload safeguards integrated

Compatibility

Suited for applications requiring a fixed 1.8V output up to 150mA

Compatible with surface mount technology for PCB assembly

Application Areas

Ideal for battery-powered devices, portable electronics, and sensitive power supply systems

Product Lifecycle

Status: Obsolete

No direct replacement or upgrade available

Several Key Reasons to Choose This Product

Efficient low-voltage regulation perfect for extending battery life in sensitive electronics

Low dropout feature ensures better performance even with low input voltages

Robust protection features provide reliability and safety across various conditions

High PSRR rating makes it suitable for noisy environments where stable voltage is crucial