Manufacturer Part Number
KA7909TU
Manufacturer
onsemi
Introduction
The KA7909TU is a negative fixed output, low dropout linear regulator designed for power management.
Product Features and Performance
Negative fixed output voltage regulator
Low dropout performance - 2V @ 1A (Typical)
High output current capability - 1A
Moderate power supply rejection ratio - 60dB at 120Hz
Operating Temperature Range from 0°C to 125°C
Through-hole TO-220-3 package for easy mounting
Product Advantages
Simple design that requires minimal external components
Offers thermal shutdown and short circuit protection enhancing reliability
Good noise rejection capabilities for stable operations
Key Technical Parameters
Input Voltage (Max) -35V
Output Voltage (Min/Fixed) -9V
Current - Output 1A
Current - Quiescent (Iq) 6mA
Voltage Dropout (Max) 2V @ 1A
PSRR 60dB (120Hz)
Quality and Safety Features
Over Temperature protection
Short Circuit protection
Compatibility
Standard TO-220-3 package compatible with common through-hole PCB designs
Application Areas
Power management for negative voltage required electronics
Suitable for linear power supplies
Product Lifecycle
Obsolete - Consider alternatives as this model may no longer be manufactured
Replacement models or upgrades may be available
Several Key Reasons to Choose This Product
High output current capacity for demanding applications
Built-in safety features like thermal and short circuit protection to safeguard against faults
Stable and reliable linear voltage regulation for negative voltage circuits
Ideal for legacy systems that require negative voltage regulation due to its through-hole mounting design