LM7924 -24v 1A Negative Voltage Regulator TO-220

The 7924 -24V 1A Negative Voltage Regulator is a three-terminal fixed voltage regulator in the popular TO-220 package. It delivers a constant output of -24V and supports output currents up to 1A, making it ideal for negative voltage rail applications in analog circuits, op-amp supplies, and audio systems. Built-in thermal shutdown and current limiting features ensure safe operation under a variety of conditions.

Key Features of 7924 -24V 1A Negative Voltage Regulator:

• Fixed Output Voltage: Provides a stable -24V regulated output.
• 1A Output Current: Can deliver up to 1 Ampere of continuous current.
• Built-in Protection: Features internal current limiting and thermal overload protection.
• Drop-in Replacement: Compatible with standard TO-220 mounting footprint.
• Low Standby Current: Efficient operation with minimal power loss when idle.

Technical Specifications of 7924 -24V 1A Negative Voltage Regulator:

• Output Voltage: -24V ±2%
• Output Current (Max): 1A
• Input Voltage Range: -27V to -35V
• Dropout Voltage: 2V to 2.5V typical
• Quiescent Current: 5.5mA typical
• Line Regulation: 0.05%/V typical
• Load Regulation: 0.5% typical
• Operating Temperature: 0°C to +125°C

Mechanical Specifications of 7924 -24V 1A Voltage Regulator:

• Package Type: TO-220
• Leads: 3 (Input, Ground, Output)
• Mounting Type: Through-hole
• Heatsink Option: Yes, metal tab available for thermal management

Dimensions:

• Body Width: 10.16mm
• Body Height: 15.75mm
• Pin Pitch: 2.54mm
• Total Height with Leads: 30mm approx.

Mounting Options:

• PCB Mount: Suitable for vertical mounting on standard PCBs.
• Heatsink Compatible: Mountable to heatsinks via screw tab for enhanced cooling.

Schematic Diagram, Connection, Wiring and Pinout of 7924 Regulator:

• Pin 1 (Input): Connect to unregulated negative input voltage (-27V to -35V)
• Pin 2 (Ground): Connect to ground or system common
• Pin 3 (Output): Regulated -24V output
• Wiring: Use bypass capacitors close to input and output pins for stability

Datasheet of 7924 -24V 1A Negative Voltage Regulator:

• Download 7924 Voltage Regulator Datasheet (PDF)

Applications of 7924 -24V 1A Negative Voltage Regulator:

• Dual Polarity Power Supplies: Used in conjunction with positive regulators for split-rail designs.
• Audio Equipment: Negative voltage for analog audio op-amp circuits.
• Instrumentation: Precision analog circuitry requiring clean negative rails.
• Industrial Automation: Negative supply rail for sensors and transducers.
• Battery-Powered Equipment: Regulates -24V supply for special-purpose circuits.

Equivalent Models of 7924 -24V 1A Negative Voltage Regulator:

• LM7924CT: Equivalent -24V regulator in TO-220 package
• KA7924: Korean version of the 7924 negative voltage regulator
• MC7924CT: Motorola-compatible alternative

Package Includes:

• 1 x LM7924 -24V 1A Negative Voltage Regulator TO-220