LT3467IDDB#TRPBF

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PMIC - Voltage Regulators - DC DC Switching Regulators

The LT3467IDDB#TRPBF is an adjustable current mode, step-down DC/DC switching regulator. The device is designed to drive high side and low side N-Channel MOSFETs in a buck converter topology. Its wide 4.5V to 38V input voltage range and a 0.5V to 3.3V adjustable output voltage range make this regulator suitable for synchronization across a wide range of output voltages with accuracy of +/- 1.5%.

The LT3467IDDB#TRPBF integrates a transconductance error amplifier circuit that enables good voltage regulation over a wide range of load currents. It also has an output voltage sensing, current limit, and short-circuit protection. As it is thermally enhanced, the device can deliver up to 2A of continuous output current.

Regarding its application field, the LT3467IDDB#TRPBF is suitable for DC/DC buck regulator applications such as computing, automotive, digital televisions, cellular phones, digital cameras, and other applications which require variable output voltage and output current. Furthermore, this device can operate as a high efficiency synchronous buck regulator with current mode control. This makes it a valuable asset in high power/low voltage conversion.

The LT3467IDDB#TRPBF is designed to work by synchronizing to an external clock. It can also internally frequency-compensate the error amplifier without external components. With this feature, the current mode regulator can be directly configured only with an inductor and a reasonably small output capacitor.

The LT3467IDDB#TRPBF has a power-on reset which disables the device until it is externally enabled and its internal soft start prevents current surge at startup. It can be enabled by grounding the enable pin. It has an adjustable switching frequency from 0.25MHz to 2MHz, depending on the external clock frequency. Furthermore, the device can be synchronized to the external clock with a phase delay from 0 to 180 degrees.

The SoftSync™ feature of the LT3467IDDB#TRPBF allows the buck converter to operate as a time-multiplexed regulator when operating with an external clock, allowing higher efficiency and a smaller solution size compared totraditional PWM mode sync switching regression operations. Moreover, the device also features a fault protection circuit, which can be externally enabled to protect the overhead of the input power source.

Overall, the LT3467IDDB#TRPBF is a powerful, adjustable high-performance buck regulator with excellent integration capabilities. It has a wide input voltage range, adjustable output voltage range, current mode control, and programmable switching frequency. Its SoftSync feature allows for higher efficiency and a smaller solution size. With its comprehensive fault protection, it is optimised for high power/low voltage conversion applications.

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