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Pulse-Width Modulation (PWM) Controllers and Constant On-Time (COT) Controllers

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PWM Controllers for Multiple Power Requirements and Design Topologies

Our extensive array of analog controller products meets the diverse requirements of designs for the mobile device, portable computer, telecommunications and industrial markets. With their combination of advanced IC processes, packaging technology and system design optimization, these products offer wide input-voltage ranges, high efficiency, small form factors, fast transient response, low ripple, low noise, low Iq and low EMI.

Devices in our large portfolio of easy-to-use buck, boost, flyback, forward and push-pull DC-DC controllers are excellent options for implementing many telemetry and control features via PMBus® or an I2C interface, such as current limits, temperature, output current, output voltage, switching frequency, power good, soft start and more.

PWM and COT Controllers

Buck Controllers

Our synchronous and asynchronous buck controllers offer a wide input voltage range up to 75V and an ultra-low standby quiescent current to extend battery life in portable applications.

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Boost Controllers

Our high-performance step-up boost controllers with synchronous and nonsynchronous switches offer a combination of features to create small, low-profile boost switching regulation circuits.

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Flyback, Forward, Push-Pull and SEPIC Controllers

These controllers are simple, cost-effective solutions for offline or DC/DC conversion in systems that need galvanic isolation in various power configurations.

Parametrics

More Information About PWM and COT Controllers

Benefits
Methods and Features

Benefits of PWM and COT Controllers

Optimizing power supplies for rugged and extreme operating conditions
Applications requiring high input power and various levels of output power
Applications requiring wide input voltage ranges
Powering portable applications requiring extended battery life and low self-consumption during standby

We provide a rapidly expanding portfolio of analog controller products to serve the mobile device, portable computer, telecommunications and industrial markets. By combining advanced IC process, packaging technology and system design optimization, our products offer wide-input voltage ranges, high efficiency, small form factors, fast transient response, low ripple, low noise, low Iq and low EMI.

Control Methods

Pulse-Width Modulation (PWM)
Constant-On-Time (COT)

Protection Features

Output Overvoltage Protection (OVP)
Undervoltage Lockout (UVLO)
Over Current Protection (OCP)
Over Temperature Protection (OTP)

These products are easy to use via PMBus or an I2C interface for many telemetry and control features, such as current limits, temperature, output current, output voltage, switching frequency, power good, soft start and more.