MAX1793EUE18+

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MAX1793EUE18+ is a member of the family of linear voltage regulators in the power management IC (PMIC) industry. It allows a single voltage rail to be regulated through a step-down process that takes multiple voltage inputs. This is ideal for applications such as portable electronic equipment, power supply designs, and remote cell phone towers, where a single, low-voltage output is necessary from multiple inputs. In this article, we will explore the application fields and working principles of the MAX1793EUE18+.

Applications of MAX1793EUE18+ Linear Voltage Regulators

The MAX1793EUE18+ linear voltage regulator is a highly efficient, low power device that is particularly useful in applications where a single output voltage is needed from multiple input voltages. A few of these applications include:

• Power supplies of portable electronic devices
• Automotive and industrial applications with multiple power supply sources
• Cellular towers and base stations
• Portable medical equipment and instrumentation

Working Principle of MAX1793EUE18+ Linear Voltage Regulators

The MAX1793EUE18+ linear voltage regulator is a buck-boost regulator that can step down the voltage from one source and step it up from another. This process is usually used to slow the effects of transient voltage drops or increases due to changing loads. The MAX1793EUE18+ controls the output voltage according to an internal reference voltage. It also has a programmable output current limit, over-voltage protection, reverse-voltage protection, and thermal shutdown. These features ensure proper current and voltage regulation, even under extreme circumstances.

The MAX1793EUE18+ comes with an internal voltage comparator, allowing the user to adjust the voltage output precisely. This can be done by changing the resistance of external components. The internal power switches, which act as current rheostats or current limiters, also allow the user to set the current output to as low as 50µA. The current is then regulated through a voltage feedback loop.

In addition, the MAX1793EUE18+ also has built-in short-circuit protection to protect the circuit from damage due to excessive current flow. This protection circuit can quickly detect and shut down the power stages should a short-circuit occur. This enables the circuit to keep running even during a short-circuit event, unlike other solutions that typically cause the circuit to shut down.

Conclusion

In conclusion, the MAX1793EUE18+ is a highly efficient, low power linear voltage regulator that can take multiple input voltages and convert them into a single, low-voltage output. Its integrated features, such as voltage comparator, power switches, built-in short-circuit protection, and reverse-voltage protection, make it ideal for applications with multiple power supply sources, such as portable electronic equipment, power supplies, and cellular towers.

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