Professional IC Distribution & Technical Solutions

The LM3524N is a PWM (Pulse Width Modulation) Controller manufactured by National Semiconductor (NS). Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: National Semiconductor (NS)
• Type: Switching Regulator Controller
• Topology: Buck, Boost, Flyback, Forward
• Output Type: Adjustable
• Output Voltage Range: Adjustable via external components
• Frequency Range: Up to 100 kHz
• Duty Cycle Range: 0% to 90%
• Input Voltage Range: 8V to 40V
• Output Current: 200mA (sink/source)
• Reference Voltage: 5V ±1%
• Operating Temperature Range: 0°C to +70°C
• Package: 16-Pin PDIP (Plastic Dual In-Line Package)

Descriptions:

The LM3524N is a voltage-mode PWM controller designed for DC-DC converter and power supply applications. It includes an onboard oscillator, error amplifier, PWM comparator, and dual alternating output drivers, making it suitable for push-pull, buck, and boost converter designs.

Features:

• Adjustable Output Voltage via external feedback resistors
• Internal 5V Reference Voltage for regulation
• Dual Alternating Output Drivers for push-pull applications
• Current Limiting and Shutdown Protection
• Adjustable Oscillator Frequency with external timing components
• Soft-Start Capability
• Wide Input Voltage Range (8V to 40V)
• Thermal Shutdown Protection

This IC is commonly used in switching power supplies, inverters, and motor control circuits.

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