MAX16933ATIR/V+T

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DC DC Switching Controllers

The MAX16933ATIR/V+T is a DC DC switching controller for high-step ratio, high-efficiency DC-DC power conversion applications. The main features of the MAX16933ATIR/V+T include adjustable switching frequency, wide output voltage range, spread spectrum frequency modulation, integrated input and output voltage sensing, and low power sleep mode.

Application Field

The MAX16933ATIR/V+T provides a great option for a wide range of applications including server and telecom power supplies, PC power adapters, Lithium-ion battery chargers, notebook adapter controllers, power strips, programmable-current LED drivers, and small-sized DC-DC converters. The device is a high performance non-synchronous buck converter with a wide input voltage range of VIN 4V to 40V.

Working Principle

The MAX16933ATIR/V+T adopts a non-synchronous step-down architecture. That being said, it uses an internal high side MOSFET, thereby eliminating the need for an external high side MOSFET. With its adjustable switching frequency, the design can operate from 4-mgz up to 4.2 =MHz with a frequency synchronization capability up to 4.2-MHz synchronous. It offers an adjustable output voltage with a range of 0.8V to VIN. The device has integrated input and output voltage sensing, allowing for a precision regulated output no matter the input voltage or temperature variations.

In terms of control, the MAX16933ATIR/V+T uses an advanced control loop that offers simple compensation and stability and excellent transient response. It also features cycle-by-cycle current limit protection, adjustable soft-start timing, over-voltage protection, and under-voltage lockout. Other features include spread spectrum frequency modulation, low-power sleep mode, external synchronization and fault signaling.

In summary, the MAX16933ATIR/V+T offers a versatile and high efficiency solution for a variety of DC-DC converter applications. The integrated features, such as frequency synchronization, integrated voltage sensing, spread spectrum frequency modulation and low power sleep mode, along with the adjustable output voltage and selectable frequency, make it an ideal choice for designers in need of a high-performance DC-DC converter.

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