MAX5090BATE+T

Voltage - Output (Min/Fixed):	5V
Base Part Number:	MAX5090
Supplier Device Package:	16-TQFN (5x5)
Package / Case:	16-WQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	127kHz
Current - Output:	2A
Voltage - Output (Max):	--
Series:	--
Voltage - Input (Max):	76V
Voltage - Input (Min):	6.5V
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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The MAX5090BATE+T is an advanced DC-DC switching regulator, classified as part of the PMIC-Voltage Regulators-DC DC Switching Regulators product family. This device is exceptionally versatile and allows for a range of uses, initially designed for DC-DC step-down applications for low-power portable electronics. The MAX5090BATE+T’s advanced design offers several benefits over more basic solutions, including excellent efficiency, fast transient response, and a very wide input voltage range. The key components of the MAX5090BATE+T are a synchronous rectifier, high-side and low-side MOSFETs, and a voltage reference. The under-voltage lockout (UVLO) logic limits start-up current and improves overall efficiency by keeping the output in a low-current state until the input voltage exceeds a set level. While operating, the device is able to interface efficiently and effectively with voltage- and current-sensing feedback loops, helping to ensure optimal performance.The MAX5090BATE+T features a relatively high current limit of around 2 A, a wide input voltage range of 3 V - 60 V, and wide bias voltage range of 1.8 V - 5 V The feedback control circuitry allows for a programmable output voltage from 0.6 V to 4.2 V with accuracy and precision. The integrated MOSFETs also offer high efficiency, enabling up to 95.5% efficiency.Under normal operating conditions, the MAX5090BATE+T utilizes a Pulse-Width Modulation (PWM) circuit for controlling the amount of power drawn from the input voltage source. This PWM signal is then sent to the MOSFETs connected to it, in turn controlling the output voltage. The power drawn from the input is regulated by an error amplifier, which adjusts the duty cycle applied to the MOSFETs to maintain a constant output voltage. If the output current reaches a preset limit, then the pulse-width modulation is reduced to reduce the amount of power being drawn from the input voltage source.The MAX5090BATE+T also features a soft-start feature. This feature works by slowly increasing the output voltage after start-up, allowing the power elements sufficient time to adequately heat up, while also reducing the amount of power required to start the device. This soft-start feature also reduces design complexity and eliminates the need for an external soft-start circuit.Finally, the MAX5090BATE+T comes with a comprehensive range of protection features. These include a wide-range input UVLO, output overvoltage protection (OVP), input overcurrent protection (OCP), output overcurrent protection (OCP), output short-circuit protection (SCP), and thermal shutdown (TSD). Overall, the MAX5090BATE+T is an ideal solution for a wide variety of low-power portable applications, such as wearables, IoT-connected devices, and smart home systems, amongst others.

In conclusion, the MAX5090BATE+T is a highly advanced switching regulator, designed specifically for DC-DC applications in portable electronics. It features wide input voltage, bias voltage, and output voltage ranges, as well as high-efficiency MOSFETs and protection features such as OVP, OCP, SCP, and TSD. This high-performance device is ideal for a wide range of low-power portable application, making it an ideal choice for a variety of products.

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