LTC3440EDD#TRPBF

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The LTC3440EDD#TRPBF is a synchronous step-down DC/DC converter with a wide operating input voltage range of 1.8 V to 6 V, making it suitable for a variety of applications such as mobile, automotive, and industrial. It is designed to do an efficient power conversion while accommodating thermal constraints, a high step-down ratio and higher ripple than traditional Buck converters. The LTC3440EDD#TRPBF is a high switching frequency step-down DC/DC converter that is capable of delivering up to 2A of continuous output current.

The LTC3440EDD#TRPBF operates by synchronously rectifying an input voltage with a low on-resistance MOSFET (field effect transistor), and dropping the voltage to the required level. The internal power stage and compensation features optimize the transient response and overall efficiency of the circuit. The LTC3440EDD#TRPBF is available in 10-lead MSOP and DFN packages. The LTC3440EDD#TRPBF has an adjustable output voltage which is set by the external CSTEP voltage pin, which is an effective way to maintain the output voltage over temperature and line voltage changes.

The LTC3440EDD#TRPBF operates in a fixed frequency PWM mode which is determined by an external clock input or an internal oscillator. The internal oscillator frequency is adjustable to 1 MHz or less. The LTC3440EDD#TRPBF also has a wide range of soft-start modes. This diagnostic soft-start function can be disabled or enabled by setting the internal EN Pin.

The LTC3440EDD#TRPBF also has a unique feature which eliminates the need for an external Schottky diode, reducing overall solution size. In addition, an internal low dropout (LDO) linear regulator can be enabled for powering low voltage logic circuits. The system is protected from over-voltage, over-temperature, and under-voltage conditions with selectable thresholds.

The LTC3440EDD#TRPBF is a versatile buck converter with a unique combination of features and performance specifications that give it a broad range of application potential, such as in mobile phones, datacom and automotive solutions. The wide operating temperature range and a safe-area compensation feature, as well as its low on-resistance power switch and wide operating voltage range make it suitable for many demanding applications. It also offers a low dropout regulator option, along with over-voltage, over-temperature and under-voltage protection.

The LTC3440EDD#TRPBF is an ideal DC/DC converter for a variety of applications such as wireless communication systems, industrial and automotive power supplies, mobile phones, and battery powered devices. The included features and flexibility make it an excellent choice for any circuit requiring fast transient response and high efficiency power conversion.

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