Manufacturer Part Number
UA78L09ACPK
Manufacturer
Texas Instruments
Introduction
The UA78L09ACPK is a linear voltage regulator designed for power management, providing a fixed 9V output from an input up to 24V.
Product Features and Performance
Linear Low Drop Out (LDO) Voltage Regulator
Positive Output Configuration
Single Regulator Design
24V Maximum Input Voltage
Fixed 9V Output Voltage
7V Maximum Voltage Dropout at 40mA Load
100mA Output Current Capability
45dB Power Supply Rejection Ratio (PSRR) at 120Hz
Product Advantages
High PSRR minimizing ripple from the source
Low dropout voltage for better efficiency
Protection features include Over Current, Over Temperature, Reverse Polarity, and Short Circuit protection
Key Technical Parameters
Voltage - Input (Max): 24V
Voltage - Output (Min/Fixed): 9V
Voltage Dropout (Max): 1.7V @ 40mA
Current - Output: 100mA
PSRR: 45dB at 120Hz
Quality and Safety Features
Built-in Over Current Protection
Built-in Over Temperature Protection
Reverse Polarity Protection
Short Circuit Protection
Compatibility
Designed for surface mount with SOT-89-3 package
Compatible with a wide range of sub-circuits requiring a 9V supply
Application Areas
Consumer Electronics
Industrial Controls
Telecommunication Systems
Portable Devices
Product Lifecycle
Last Time Buy status
Potential need for identifying replacement or upgrade due to discontinuation
Several Key Reasons to Choose This Product
Robust protection features for reliable operation
Texas Instruments' reputation for high-quality components
Low dropout voltage to maximize efficiency
Wide input voltage range suitable for various applications
Positive fixed output for ease of design
High PSRR for stable voltage supply in noisy environments