LT1271CQ#TRPBF

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APPETRONIX LT1271CQ#TRPBF is an integrated circuit (IC) used primarily in DC/DC power conversion or voltage regulation applications. It is a high-efficiency, cost-effective, high-performance switch mode buck regulator, combining a synchronous rectified buck controller with 60V power MOSFETs in a tiny SOT-23-6L package. It is a simplified, single-chip solution for current and voltage mode based switching regulators, typically used in notebook computers, handheld electronic devices and other portable equipment.

The LT1271CQ#TRPBF is a current−mode step−down switcher which operates from an input voltage of 2.3V to 22V and provides outputs of 0.7V to 16V. It is designed to operate in pulse−width modulation (PWM) or pulse−frequency modulation (PFM) mode, making it highly efficient and reliable. It utilizes a high efficiency, low on−resistance internal N−channel MOSFET, making it ideal for applications that require extremely low power consumption and high output current. With its integrated current sense circuit, the LT1271CQ#TRPBF can easily be configured for either current−mode or voltage−mode operation. As a result, it is suitable for a variety of applications, such as notebook computers, cellular phones and other portable devices, where the desired output voltage is fixed and current accuracy is a priority.

The LT1271CQ#TRPBF offers high efficiency and simple operation in a small package. The switching frequency is programmable and can be set as high as 1.2MHz. The switching frequency can be synchronized externally to the switching frequency of other circuits in the system. In PFM mode, the device operates with a pulsed load, reducing power dissipation and extending battery life. It also supports the use of an external MOSFET for high performance applications.

The LT1271CQ#TRPBF is ideal for portable applications such as notebook computers, cellular phones, PDAs and other personal electronic devices that require low power consumption and high output current. The integrated current sense and MOSFET are the main advantages of the device making it a highly reliable, cost-effective solution for DC/DC power conversion and voltage regulation applications.

The LT1271CQ#TRPBF is constructed in a SOT-23-6L package with 0.5mm pitch terminals. It is an ultra low-power, high-current synchronous DC/DC converter IC. It operates from an input voltage of 2.3V to 22V and provides an output voltage of 0.7V to 16V. The linearity of the current mirror and the low on-resistance of the low-side MOSFET ensure the proper biasing for correct operation. This device is designed to operate in either PWM or PFM mode. It is also very reliable since it utilizes an internal current sensor and provides automatic frequency synchronization. The LT1271CQ#TRPBF also comes with adjustable soft-start and frequency synchronization capabilities. It works well with very low ESR output capacitors, minimizing the component count and board space requirements.

The LT1271CQ#TRPBF is the ideal choice for DC/DC power conversion and voltage regulation applications, especially in mobile and battery-powered applications. With its high efficiency, low power consumption, programmable switching frequency and MOSFET, the LT1271CQ#TRPBF provides a robust and cost-effective solution for power management applications. Additionally, it is designed to operate in a temperature range of -40°C to +125°C, making it highly reliable for a variety of applications.

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