SG2526BDW

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The SG2526BDW is a high-performance monolithic self-oscillating step-down current switch controller with several features including programmable over current protection, current-sense input, adaptive off-time control and others. It is ideal for a wide range of applications from computer power supplies to automotive systems.

The principle of operation for a switching regulator is simple - it uses an on/off signal to switch a power transistor on and off at certain frequencies in order to regulate the output voltage. The SG2526BDW utilizes this principle, governed by its own on-chip oscillator, to regulate the current flowing through the output load. The output voltage can be controlled via a single external resistor, and the output current is sensed via an external current-sense input, allowing for precise control over the output current.

The SG2526BDW not only offers average current mode control but also provides adaptive off-time control and over current protection. Adaptive off-time control allows for more efficient operation during light/no-load conditions, whereas over current protection allows for the output to be safely shut down in the event of a fault condition. Additionally, the device integrates a fixed 3V reference regulator which enables the device to function with a wide input voltage range.

The SG2526BDW is therefore well suited for applications such as LED lighting, PC power supplies, laptop adapters, telecom power supplies and automotive power management systems.

In summary, the SG2526BDW is a high-performance monolithic self-oscillating step-down current switch controller with several features such as programmable over current protection, current-sense input, adaptive off-time control, and others. It is an ideal solution for a wide range of applications including LED lighting, PC power supplies, laptop adapters, telecom power supplies, automotive power management systems and other power-hungry devices which require high-efficiency and precision voltage regulation.

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