Manufacturer Part Number
TPS78408QDBVRQ1
Manufacturer
Texas Instruments
Introduction
This is a power management integrated circuit specifically designed for automotive applications, featuring a low drop-out voltage regulator.
Product Features and Performance
Positive fixed output configuration
Single regulator for simplified design
Low voltage drop of 0.775V at 300mA load
Supports up to 300mA of output current
Ultra-low quiescent current of 30 µA, maximizing battery life
PSRR of 60dB to 30dB across 1kHz to 1MHz, ensuring stable voltage under variable loads
Built-In overcurrent and overtemperature protection for enhanced safety
Operates across a wide temperature range from -40°C to 150°C
Product Advantages
High reliability and performance tailored for automotive applications
Low quiescent current extends battery life in sensitive applications
High PSRR ensures stability in fluctuating environments
Robust protection features enhance safety and longevity
AEC-Q100 qualification confirms automotive-grade quality
Key Technical Parameters
Voltage Input (Max): 6V
Voltage Output (Min/Fixed): 0.8V
Current Output: 300mA
Voltage Dropout (Max): 0.775V @ 300mA
Current Quiescent (Iq): 30 µA
PSRR: 60dB ~ 30dB (1kHz ~ 1MHz)
Operating Temperature: -40°C ~ 150°C
Quality and Safety Features
Overcurrent and overtemperature protection
AEC-Q100 qualified for automotive applications
Compatibility
Surface mount design compatible with standard SOT-23-5 packaging
Application Areas
Automotive power supplies and electronics
Battery-powered devices requiring efficient power management
Product Lifecycle
Currently active and not nearing discontinuation
Availability of replacements or upgrades to be confirmed by Texas Instruments as necessary
Several Key Reasons to Choose This Product
Optimized for automotive use with high temperature and reliability standards
Ultra-low quiescent current ideal for battery conservation
High power supply rejection ratio maintains stable operation
Enhanced safety with built-in protection features
Qualified by AEC-Q100 for automotive industry compliance
TPS78412BQWDRBRQ1Texas InstrumentsAUTOMOTIVE, 300-MA, LOW-IQ, HIGH