Texas Instruments 16-Pin MDIP 5-Channel PWM Controller, 100 kHz, 14V, Voltage Mode, Buck Topology, LM78S40CN/NOPB

Texas Instruments LM78S40CN/NOPB is a highly integrated 5-channel PWM controller IC, engineered to meet demanding power management needs in industrial, laboratory, and commercial applications. This device utilizes a voltage-mode PWM approach and provides robust step-down (buck) regulation capability, supporting input voltages up to 14V with reliable switching frequencies up to 100 kHz. Its 16-pin MDIP form factor enables straightforward through-hole installation, making it ideal for PCB assembly in systems requiring efficient multi-channel DC/DC conversion.

Key technical features include a maximum output voltage of 40V and output currents up to 1.2A across each channel, making the LM78S40CN/NOPB suitable for both distributed and clustered power regulation. The controller supports up to five separate outputs, offering flexibility for supplying multiple components or circuits from a single solution. The maximum duty cycle reaches 88%, optimizing output quality and response under varying load conditions.

The IC’s minimum supply voltage operates from 2.7V, ensuring compatibility with low-voltage digital logic platforms, while its maximum supply voltage of 14V accommodates standard and higher-voltage systems. Start-up and steady-state supply currents are both rated at 1.8mA, minimizing self-consumption and supporting energy-efficient operation.

Designed for a wide industrial temperature range (0°C to 70°C), LM78S40CN/NOPB maintains reliable performance in environments subject to thermal fluctuations. With a package size of 19.05mm (length) x 6.35mm (width) x 3.3mm (height), this MDIP IC is easily integrated into compact control panels and power systems.

Step-down buck topology enables precise voltage regulation in DC/DC conversion and power distribution systems. Voltage mode PWM control grants enhanced stability and response for critical electronic, industrial, and laboratory applications.

Five-channel design permits simultaneous control of multiple loads, supporting scalable equipment and instrumentation. Through-hole MDIP packaging provides robust mechanical mounting and facilitates conventional assembly processes.

Ideal for power management, embedded systems, laboratory instrumentation, and manufacturing controls requiring reliable multi-output regulation.

Suitable for use in industrial machinery, laboratory apparatus, commercial equipment, and embedded systems, the LM78S40CN/NOPB offers a versatile and reliable solution for DC power management. Explore more Texas Instruments PWM controllers and power management ICs in the Power Management ICs category on EnvMart.