LTC1261LIMS8-4#TRPBF

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The LTC1261LIMS8-4#TRPBF is a monolithic high performance DC/DC-Switching-Regulator in the family of low dropout or buck voltage regulators. It is specially designed to provide a regulated output voltage, with superior current limiting, operating over a wide input voltage range. This device can also operate with a wide range of output voltages (0.8 to 6.0V) while consuming very little quiescent current. The minimum operating current of the device is 25mA.

The LTC1261LIMS8-4#TRPBF is an ideal choice for applications requiring a low input voltage and a wide range of output voltage options. It is typically used in consumer electronics, such as laptops, tablets, mobile phones, portable game consoles, digital cameras, and set-top boxes. It is also suitable for wireless networks, telecom, hardened or automotive applications.

The LTC1261LIMS8-4#TRPBF is a synchronous step-down DC/DC converter that operates at low input voltages and features programmable current-limit. Its internal synchronous rectifier eliminates external Schottky diodes, enabling high efficiency with lower power dissipation. The output voltage can be adjusted from 0.8 to 6.0V with integrated feedback in external resistors, enabling a wide range of applications.

The LTC1261LIMS8-4#TRPBF consists of two independent converters, each with its own soft-start circuit. It provides enhanced load transient response and no-load standby current. The device also features an adjustable-frequency cycle-by-cycle current limit, which provides current protection against short-circuit conditions. In addition, under-voltage-lockout allows the device to operate safely in input voltages as low as 3.2V.

The main advantage of the LTC1261LIMS8-4#TRPBF is its low quiescent current (25mA) and high efficiency (up to 95%). The device consists of a 2.5A high-current MOSFET switch and a linear regulator. It also features an adjustable frequency cycle-by-cycle current limit and an internal valley detect circuit that enables the user to adjust the frequency of the pulse-width modulation (PWM) in order to optimize regulated capabilities. The low quiescent current helps to conserve power and increase system run-time. The device is available in 8-pin SOIC (LFCSP) package.

The LTC1261LIMS8-4#TRPBF is an efficient, reliable and cost effective solution for a wide range of applications. Its small package size and low quiescent current make it ideal for portable and mobile applications, as well as for applications with tight space constraints. The device also boasts excellent load and line transient responses, making it suitable for harsh environments where typically experience transient voltage or current fluctuations. Its programmable current limit and valley detect circuit allow the user to easily adjust the operating frequency, ensuring maximum efficiency over a wide range of loads.

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