LTC1735CGN

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The LTC1735CGN is a low noise DC/DC controller which is specifically designed for applications that require low output noise, low power, and fast transient response. It is ideal for applications such as low power personal audio systems, servers and routers, set-top boxes, and wireless communications.

The device consists of a low power core, a power management controller, a voltage control device, and switching MOSFETs. The core contains the required logic and control circuitry to implement a basic DC/DC converter. The voltage control device monitors the state of the output voltage, and the switching MOSFETs switch the current through the primary side of the transformer. All the components of the LTC1735CGN are integrated into a standard SOT-23 package.

The LTC1735CGN employs a voltage mode control technique to regulate the output voltage. The device combines a constant-on-time control architecture and a constant frequency switching control to regulate the output voltage. The output voltage is regulated by controlling the duty cycle of the switching waveform. The peak inductor current is monitored by the LTC1735CGN and is used to control the duty cycle of the switching waveform. This allows the device to regulate the output voltage very accurately.

The LTC1735CGN also provides the ability to optimize the output voltage regulation by changing the on-time and frequency of the switch. The on-time can be varied between 2 and 180µs and the switching frequency can be varied between 200kHz and 1MHz. This allows for the output voltage to be optimized for various input and output conditions.

In addition, the LTC1735CGN also provides protection features to protect the device and the associated secondary components. The device provides over-current, over-voltage, and under-voltage protection. It also provides thermal protection to protect the device from over-temperature conditions.

In summary, the LTC1735CGN is a highly integrated low noise DC/DC controller which is specifically designed for low power applications. It integrates a low power core, a power management controller, a voltage control device, and switching MOSFETs into a standard SOT-23 package. The device utilizes a voltage mode control technique to regulate the output voltage and also provides protection features. The integrated features and low noise capabilities make the LTC1735CGN an ideal solution for applications such as low power personal audio systems, servers and routers, set-top boxes, and wireless communications.

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