MAX5067ETH

Frequency - Switching:	250kHz, 500kHz
Base Part Number:	MAX5067
Supplier Device Package:	44-TQFN-EP (7x7)
Package / Case:	44-WFQFN Exposed Pad
Operating Temperature:	-40°C ~ 85°C (TA)
Control Features:	Enable, Phase Control, Power Good
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	Yes
Duty Cycle (Max):	--
Series:	--
Voltage - Supply (Vcc/Vdd):	4.75 V ~ 28 V
Output Phases:	2
Number of Outputs:	2
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Output Type:	Transistor Driver
Part Status:	Obsolete
Packaging:	Tube

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Introduction to MAX5067ETH

MAX5067ETH is a DC-DC switching controller from Maxim Integrated, which provides customers with a power high-efficiency power solution for many applications. It is designed to operate within a wide range of operating conditions and is able to switch up to 4A and 400V.

Application Field and Working Principle

MAX5067ETH can be applied in many industries, such as consumer electronics, medical and automotive sectors. In consumer electronics, it can be used to replace bulky linear regulators with high-efficiency switching regulators. In medical and automotive, it can be used to build converters with various input and output ranges, such as 12V, 24V, and 48V.MAX5067ETH works by integrating a wide range of features to provide high-efficiency power conversion. It utilizes a two-stage architecture for efficiency optimization, featuring pulse width modulation (PWM) mode and pulse frequency modulation (PFM) mode. This architecture allows the controller to inherently adjust the switching frequency, voltage and current without requiring any external feedback control. During the PWM mode, the controller will keep the output voltage within the specified range by switching the high-side and low-side power switches at a fixed frequency. When in PFM mode, the duty-cycle of the output voltage is adjusted automatically by compare the reference voltage with the feedback output voltage. Furthermore, the MAX5067ETH also has various protections features, such as Over-Voltage Protection, Input Under-Voltage Lockout and Over-Current Protection, to ensure it maintains safe operation under harsh conditions.

Conclusion

MAX5067ETH is a reliable and efficient DC-DC switching controller from Maxim Integrated which can be applied in many sectors, such as consumer electronics, medical and automotive. It utilizes a two-stage architecture integrating PWM and PFM mode for efficiency optimization. Additionally, it comes with a host of protection features, such as Over-Voltage Protection, Input Under-Voltage Lockout, and Over-Current Protection. This makes it ideal for delivering high-efficiency power conversion in even the harshest working environments.

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