TPS70939DBVR - Texas Instruments

Manufacturer Part Number

TPS70939DBVR

Manufacturer

Texas Instruments

Introduction

The TPS70939DBVR is a fixed output, low dropout (LDO) regulator designed for power management, specifically operating with a low quiescent current and excellent line and load regulation.

Product Features and Performance

Single regulator output

Fixed output voltage of 3.9V

Maximum input voltage of 30V

Low dropout voltage: 1.4V @ 150mA

Output current of 150mA

Extremely low quiescent current: 2.05 µA

High power supply rejection ratio: 80dB ~ 52dB (10Hz ~ 1kHz)

Integrated protection features: Over Current, Over Temperature, Reverse Current, Under Voltage Lockout (UVLO)

Low noise performance and high accuracy

Stable with low-ESR ceramic capacitors

Product Advantages

High efficiency with low dropout voltage

Minimal power consumption in inactive mode

Robust protection features enhance product reliability

Suitable for battery-powered applications due to low quiescent current

Key Technical Parameters

Voltage Input (Max): 30V

Voltage Output (Min/Fixed): 3.9V

Current Output: 150mA

Voltage Dropout (Max): 1.4V @ 150mA

Current Quiescent (Iq): 2.05 µA

PSRR: 80dB ~ 52dB (10Hz ~ 1kHz)

Quality and Safety Features

Over Current Protection

Over Temperature Protection

Reverse Current Protection

Under Voltage Lockout (UVLO)

Compatibility

Supports a wide range of ceramic capacitors

Flexible for use in various electronic applications due to stable output and low noise characteristics

Application Areas

Mobile Phones

Portable Electronics

Battery Powered Devices

Healthcare Monitoring Devices

Product Lifecycle

Status: Active

Not nearing discontinuation and has availability of replacements or upgrades

Several Key Reasons to Choose This Product

Exceptionally low dropout for improved efficiency

Ultra-low quiescent current ideal for battery-sensitive devices

High PSRR for better noise filtering in sensitive applications

Robust built-in protections for enhanced reliability and longevity in harsh conditions

Compatibility with a wide range of capacitors for design flexibility