MAX8564EUB+

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The MAX8564EUB+ is a low-noise, low-dropout, linear regulator controller from Maxim Integrated. It is mainly used in battery-powered systems where reduced quiescent current or ultra-low dropout performance is required. This IC provides cost-efficient, superior low-noise performance to conserve battery life and extend the run time of products powered by battery.

Functionality

The MAX8564EUB+ provides the functionality of a voltage and current regulator. It features pin-programmable voltage range of 0.6V to 5.5V, making it highly suitable for handheld and low-power portable applications. It is designed with a low-noise output to reduce system-level noise while conserving power. This regulator controller also features automatic current limiter and thermal shutoff protection, allowing it to be used in a wide range of applications. Additionally, it offers guaranteed line/load transient response and fast-rising output voltage for improved battery performance and long battery life.

Application Field

The MAX8564EUB+ is mainly used in battery-powered applications that require ultra-low dropout performance and reduced quiescent current. It is particularly suitable for applications in portable devices, such as digital audio players, mobile phones and PDAs, digital still cameras and portable gaming consoles. Furthermore, due its low noise, low dropout performance and automatic current limiter, it is also suitable for other power regulation applications in consumer, medical and industrial electronics.

Working Principle

The MAX8564EUB+ works by providing a regulated output voltage that is adjustable between 0.6V and 5.5V. It operates on an input voltage range of 2.25V to 10V, making it suitable for single-cell and multi-cell lithium-ion system designs. It features a constant switching frequency of 1.2MHz and an external control to set a stepless regulation range of 100mV to 5.4V. This provides a precise output voltage and constant ripple. Moreover, it has an onboard low-dropout (LDO) controller with adjustable current limit and thermal protection. This IC is also equipped with an open-loop tracking function.

The MAX8564EUB+ is a highly integrated linear regulator controller. It offers superior low-noise performance, automatic current limiter and thermal shutoff protection – all in one chip. This makes it ideal for applications that require ultra-low dropout performance and reduced quiescent current.

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