MAX16993AGJL/VY+T

Series:	--
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable (Programmable)
Number of Outputs:	3
Voltage - Input (Min):	3.5V
Voltage - Input (Max):	36V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	3.95V
Current - Output:	3A
Frequency - Switching:	2.1MHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 125°C (TJ)

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MAX16993AGJL/VY+T: Application Field and Working PrincipleThe MAX16993AGJL/VY+T is a highly efficient, synchronous buck DC-DC converter powering a wide array of applications, including battery management systems, set top box applications, and instrumentation equipment. This power monitor provides an efficient, fast-transient solution with full digital control and telemetry. It integrates a buck controller, high-side and low-side transistors, a two-channel current sense amplifier, an integer-output voltage reference, an adjustable-delay current limit, and on-die thermal protection with an overtemperature indicator. The MAX16993AGJL/VY+T is optimized for both high-side and low-side N-channel MOSFETs.Application Field of MAX16993AGJL/VY+TThe MAX16993AGJL/VY+T is a high-efficiency, single-output, synchronous step-down converter with a programmable current limit. It is well suited for supplying microprocessors and core logic from a wide range of input-voltage sources, such as 5.5-V, 12-V, and 24-V supplies. The MAX16993AGJL/VY+T is suitable for a variety of applications, such as set-top boxes, point-of-sale, instrumentation, and automotive electronic systems. The device offers industry-leading efficiency, minimal external components, and a wide selection of adjustable components.Working Principle of MAX16993AGJL/VY+TThe MAX16993AGJL/VY+T is a high-efficiency, synchronous, step-down DC-DC converter that simplifies power management design. It integrates the necessary power components, such as the high-side and low-side FETs, a two-channel high-precision current sense amplifier, and a programmable current limit. The device provides accurate output regulation, fast transient responses, excellent line and load regulation, and high efficiency.The operating principle of the MAX16993AGJL/VY+T begins with the buck controller, which divides the input voltage by the switching frequency to set a nominal output voltage. The device integrates a low-side FET, which is driven by the drain voltage of the high-side FET. The source of the low-side FET is connected to the output sources and returns, while the gate of the FET is driven by the controller logic. This logic compares the voltage error between the output and input terminals, and adjusts the gate drive accordingly.The MAX16993AGJL/VY+T also features an adjustable current limit, which may be either enabled or disabled. When enabled, the device limits the total output current to a maximum level by sending an appropriate signal to the output FETs. This makes the device resistant to short circuit events, as well as enabling it to protect the internal FETs from being damaged. In summary, the MAX16993AGJL/VY+T is a high-efficiency, synchronous buck DC-DC converter with excellent performance. This device provides accurate output regulation, fast transient response, excellent line and load regulation, and high efficiency over a wide range of input-voltages. It integrates all the necessary power components, such as the current sense amplifier and adjustable current limit, simplifying power management design. The device is compatible with a wide range of inputs and is applicable for set-top boxes, point-of-sale, instrumentation, and automotive electronic systems.

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