Manufacturer Part Number
L79L12ACZ
Manufacturer
stmicroelectronics
Introduction
The L79L12ACZ is a linear, low drop out (LDO) voltage regulator designed to provide a fixed -12V output from a higher voltage input. It is part of stmicroelectronics' power management category, specifically tailored for applications requiring a stable negative voltage rail.
Product Features and Performance
Offers a fixed output voltage of -12V
Supports an input voltage of up to -35V
Provides an output current of 100mA
Quiescent current (Iq) of 6 mA, ensuring low power consumption in standby mode
Supply current of up to 6.5 mA
Power supply rejection ratio (PSRR) of 42dB at 120Hz, ensuring stable output despite input voltage fluctuations
Built-in over-temperature and short-circuit protection features to enhance safety
Operating temperature range from 0°C to 125°C, suitable for a wide array of environmental conditions
Product Advantages
High reliability due to over-temperature and short circuit protection
Suitable for a broad range of applications thanks to its wide operating temperature range
Low power consumption in standby mode, making it ideal for power-sensitive projects
Key Technical Parameters
Output Type: Fixed
Number of Regulators: 1
Voltage Input (Max): -35V
Voltage Output (Min/Fixed): -12V
Current Output: 100mA
Current Quiescent (Iq): 6 mA
Current Supply (Max): 6.5 mA
PSRR: 42dB (120Hz)
Quality and Safety Features
Over Temperature Protection
Short Circuit Protection
Compatibility
Through Hole Mounting Type
Packaged in TO-226-3, TO-92-3 (TO-226AA) for compatibility with broad PCB designs
Application Areas
Ideal for negative power supplies
Suitable for analog circuits requiring a -12V supply
Can be used in hobbyist and educational projects where a stable negative voltage is needed
Product Lifecycle
Status: Obsolete
Although the L79L12ACZ is obsolete, alternatives or upgrades might be available, depending on the specific application requirements.
Several Key Reasons to Choose This Product
Reliable performance with built-in safety features
Low power consumption benefits power-sensitive designs
Stmicroelectronics' reputation for quality in the power management sector
Broad compatibility with various circuit designs and applications
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