LTC3129IMSE-1#PBF

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LTC3129IMSE-1#PBF is a high performance dual-channel DC/DC boost controller in Linear Technology\'s high voltage family. It integrates two independent switch controllers and gates to provide a low-cost, wide input voltage range solution for single-ended load applications. On the output side, the device provides a configurable current-monitor frequency, adjustable hysteresis voltage, as well as a wide range of current mode loop frequencies for applications requiring low-noise and high stability. The LTC3129IMSE-1#PBF is ideally suited for automotive and industrial applications, providing the ability to monitor and control two boost capacitors in real time.

The device operates off an input voltage range of 2.5V to 56V and provides an adjustable output voltage range of 0.8V to 56V suitable for low-voltage applications. The output voltage can be programmed by an external voltage divider with a maximum resolution of 12.5mV. The LTC3129IMSE-1#PBF features a configurable current-sense amplifier configured in a differential amplifier configuration with a settling time of 4µs. It has selectable slew rate and uses temperature compensation for improved accuracy. The device also has an adjustable comparator hysteresis of 500mV to 4.5V to minimize current ripple. The device is protected against undervoltage lockout, overvoltage lockout, and over-current.

The LTC3129IMSE-1#PBF has an adjustable on-time control and a wide range of current-mode loop, allowing it to operate from a low current-mode frequency to a high frequency of 1.5MHz. Through current-sense scaling and a selectable target current level, the device can be configured to provide a wide range of dynamic load regulation. It also features programmable external output switching with a 200ns rise and fall time, allowing smooth control of the boost converter. The device also has a wide range of loop compensation options, including gain, phase and gain-bandwidth adjustment. Additionally, it has two programmable controllers, each one selectable between output current mode and output voltage mode, with both being active in output voltage mode.

The LTC3129IMSE-1#PBF is an ideal solution for automotive and industrial applications requiring efficient, low-noise switching and accurate current sensing. It is capable of operating in temperatures from -40°C to +85°C, making it suitable for harsh environments. The device has a rugged 20-pins and offers the versatility and performance needed for applications requiring both single-ended starts and dual-ended output regulation.

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