MAX749ESA+

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	LCD Display
Current - Supply:	60µA
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	MAX749

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The MAX749ESA+ comprises a robust selection of precision voltage reference and operational amplifier solutions ideal for power management applications. In this article, we will discuss the essential functions, features and capabilities of the MAX749ESA+ and how it can be employed in power management applications. The MAX749ESA+ is an ultra-low power, high-accuracy, 3-channel integrated voltage reference and operational amplifiers, capable of providing precision voltage regulation and rail-to-rail output, over the entire supply voltage range (4V to 6V). It is the ideal choice for power management applications requiring low quiescent current and low power consumption, along with high reliability. Its integrated opamp allows extremely high impedance input signals and provides outstanding precision voltage and current regulation. The MAX749ESA+ features three independent voltage references, supplying precise and stable output voltages of 4.5V, 5.0V, and 5.5V. This highly integrated voltage reference and operational amplifier solution is designed to reduce cost, size, and complexity while maintaining accuracy and reliability. The MAX749ESA+ provides the ability to program both the VREF and OPAMP output voltage, making it suitable for use in both high voltage and low voltage applications. The MAX749ESA+ operates in an ultra-low-power “no-load” mode. This allows the voltage reference solutions to be used in “sleep mode” applications, where power is not being consumed when the device is in a low-power state. The low-power mode also reduces power requirements for non-“sleep” applications, reducing heat generation, power dissipation and extending battery life.The MAX749ESA+ features three wide-input operating ranges (2.5V to 5V, 4V to 6V, and 6V to 8V) with power-supply rejection ratios of 90dB or greater, enabling it to be used in a variety of power supply conditions. The MAX749ESA+ also features a unique resistance-scaling feature, which allows for selective scaling of the inputs to reduce power dissipation and increase accuracy. The MAX749ESA+ is well-suited for use in a wide variety of power management applications. It can be used to provide precision voltage and current regulation in portable electronic devices, such as laptop computers, PDAs, cell phones, and medical implants. It can also be used to provide accurate and efficient control of motor drive circuits, such as motor speed regulation, power train control, and battery management. Additionally, the MAX749ESA+ is well-suited for precision voltage regulation of dc/dc converters, power-supply sequencing, and switch-mode power drives.The MAX749ESA+ provides a single-stage power-management solution for all of the above applications, enabling reliable, cost-effective designs. Its 3-channel architecture eliminates the need for multiple components and reduces noise, EMI, and isolation paths. Additionally, its high-accuracy voltage and current regulation capabilities simplify the design process and reduce the number of necessary components.In conclusion, the MAX749ESA+ is a versatile, highly integrated power-management solution with features and capabilities beneficial for a wide array of applications. Its low-power operation and wide operating range ensure reliable performance, while its precision voltage and current regulation capabilities provide flexibility and accuracy. This makes the MAX749ESA+ the ideal choice for power-management applications requiring precision voltage and current regulation.

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