Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Thermoelectric Cooler
Current - Supply:	8mA
Voltage - Supply:	3 V ~ 5.5 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	32-WFQFN Exposed Pad, CSP
Supplier Device Package:	32-LFCSP-WQ (5x5)
Base Part Number:	ADN8831

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Introduction

ADN8831ACPZ-REEL7 is an advanced power management specialized device manufactured by Analog Devices, Inc. It is a package of high performance current-mode buck converters that are designed to deliver power efficiently and precisely to portable applications such as cell phones, PDAs and other handheld devices. The device is compatible with Analog Devices’ Switching Regulator Control platform (SRCC) which simplifies its use in applications requiring precise power management. The device is designed to operate from input voltages ranging from 2.5V to 6V with output currents up to 2A load.

Application Field

ADN8831ACPZ-REEL7 is mainly used in applications requiring precise power management, such as portable devices, laptops, tablets and other mobile devices. It is ideal for applications requiring a high efficiency, low power consumption and very precise currents. Aside from the usage in consumer electronics, ADN8831ACPZ-REEL7 is also used in the medical sector, industrial automation and automotive applications.

Working Principle

ADN8831ACPZ-REEL7 is designed around a current-mode control architecture, which is a very efficient and precise approach to power management. The device’s output current is controlled by a comparison between a reference current and an adjustable error amplifier. The reference current is enabled when the voltage on the Enable pin exceeds its threshold. The error amplifier is set by the voltage difference between the reference voltage and the output voltage. When the error amplifier reaches its level, the comparator output will be triggered. This output is used to modify the duty cycle of a buck switching converter, and hence control the output current.

Conclusion

ADN8831ACPZ-REEL7 is an advanced power management specialized device designed to deliver power efficiently and precisely. It is mainly used in applications requiring precise power management and is ideal for portable applications such as cell phones, PDAs and other handheld devices. It is also used in the medical sector, industrial automation and automotive applications. The device is designed around a current-mode control architecture which is a very efficient and precise approach to power management.

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