ADP2139ACBZ-3.0-R7 Integrated Circuits (ICs)

Voltage - Output (Min/Fixed):	3V
Base Part Number:	ADP2139
Supplier Device Package:	6-WLCSP (1.03x1.50)
Package / Case:	6-UFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Synchronous Rectifier:	Yes
Frequency - Switching:	3MHz
Current - Output:	800mA
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	5.5V
Voltage - Input (Min):	2.3V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The ADP2139ACBZ-3.0-R7 is a programmable, pulse-width-modulated (PWM) DC-DC synchronous buck switching regulator from Analog Devices. This integrated device packs many functionalities into one package, allowing for versatile modification and application for many projects. It provides excellent low output voltage ripple and maximum efficiency, making it well suited for a variety of DC-DC converter power applications. This article will discuss the application field and working principle of the ADP2139ACBZ-3.0-R7.

Application Field

The ADP2139ACBZ-3.0-R7 DC-DC switching regulator is suitable for many applications where a constant voltage is needed to power a project. Applications include computing, automotive, networking, and industrial applications.In computing applications, the ADP2139ACBZ-3.0-R7 is used as a power converter in small form-factor hardware such as GPUs and power adapters. This low-profile design is ideal for smaller boards where size and heat management are key factors in the design of the system. In automotive applications, the ADP2139ACBZ-3.0-R7 provides reliable power throughout wide temperature ranges, making it suitable for automotive applications with high power demand and extreme environmental conditions.Due to its high efficiency, the ADP2139ACBZ-3.0-R7 is well suited for a variety of networking applications including base stations and telecom hubs. The integrated circuit is also used in industrial applications including industrial automation, lighting applications, and instrumentation.

Working Principle

The ADP2139ACBZ-3.0-R7 consists of a pulse-width-modulated (PWM) controller and an N-channel MOSFET driver. The PWM controller, which is a type of voltage regulator, is configured to receive a regulated input voltage and generate an output voltage that meets the precise voltage setpoint of the project being powered. This setpoint is determined by a voltage reference and divided down by an adjustable feedback divider circuit. The reference and divider settings are programmed into the device using external resistors.The N-channel MOSFET driver is integrated into the ADP2139ACBZ-3.0-R7 and is used to drive a MOSFET that is incorporated in the circuit of the project being powered. The MOSFET is switched ON and OFF at high frequency as determined by the PWM controller. During the ON period, the MOSFET switches the controlled voltage rail, V IN , to the output terminal, V OUT . The duration of the ON period and OFF period is determined by the PWM controller and is continuously adjusted to produce the required output voltage while using the most efficient switching of the MOSFET possible. The voltage waveform of the output is seen as a low ripple and distorted waveform, however the device is designed to maintain a low noise threshold. The ADP2139ACBZ-3.0-R7 operates within a wide voltage input range of 3V to 5.25V, and a typical output current of up to 3.5Amps. The ADP2139ACBZ-3.0-R7 is an ideal DC-DC synchronous buck regulator for applications where low output voltage ripple, maximum efficiency and size are key. The integrated circuit allows for versatile modification and application for many projects.

Conclusion

The ADP2139ACBZ-3.0-R7 from Analog Devices is a low-profile DC-DC synchronous buck switching regulator that is suitable for use in a variety of applications. This device offers excellent low output voltage ripple, maximum efficiency and the ability to be programmed with external resistors. The ADP2139ACBZ-3.0-R7 is ideal for computing, automotive, networking, and industrial projects due to its versatility, low noise and power efficiency. The working principle of the ADP2139ACBZ-3.0-R7 is based on the pulse-width-modulated (PWM) controller and integrated N-channel MOSFET driver, enabling efficient switching of the MOSFET while maintaining a low noise threshold.

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