Current - Output:	500mA
Base Part Number:	MAX1818
Supplier Device Package:	SOT-23-6
Package / Case:	SOT-23-6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Short Circuit
Control Features:	Enable, Power Good
PSRR:	--
Current - Quiescent (Iq):	250µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	5V
Voltage - Output (Min/Fixed):	1.25V (1.5V)
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Last Time Buy
Packaging:	Tape & Reel (TR)

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MAX1818EUT15#TG16 application field and working principle

1. Introduction

The MAX1818EUT15#TG16 is the lowest cost, most efficient, and latest product from MAXIM Integrated Products. It is a fully-integrated, linear, low-noise regulating system that provides high-current power regulation for numerous electronic devices. It is designed to provide efficient power conversion with minimum power dissipation and noise while operating over a wide input voltage range of 2.5V to 6V.The advantages of the MAX1818EUT15#TG16 include a low input voltage range of 2.5V to 6V with a wide operating temperature range of -40℃ to +85℃. The low quiescent current of the device is 135µA and the minimum ripple rejection ratio is 50dB. The high current capability is 1A and the control loop will quickly change the output voltage with a high degree of accuracy and regulate the system voltage variations.

2. Application Field

The MAX1818EUT15#TG16 can be used in many different applications such as cell phone and tablet charging systems, automotive digital power supplies, portable devices, wireless connectivity systems, GPS, wearable devices, robots and more.In automotive applications, the MAX1818EUT15#TG16 has the ability to control the ON/OFF state of digital system; thereby, providing efficient power conditioning for ECU (electronic control units) and related circuits. This can help reduce the design complexity and improve the robustness of the system.Moreover, in the consumer electronics, such as portable devices, the MAX1818 can be used to regulate the power to help in producing higher quality handheld products while maximizing the battery life.

3. Working Principle

The working principle of the MAX1818EUT15#TG16 is based on the current mode control technique. This low noise voltage regulator is designed to provide a constant output voltage while maintaining low noise levels. The device uses a linear current regulator to sense the load current and provides current regulation.In addition, the chip also has an adaptive voltage scaling (AVS) feature that can reduce the output voltage under light load conditions to reduce power dissipation. This feature helps in reducing the device\'s power dissipation and extending the life of the device.

4.Conclusion

The MAX1818EUT15#TG16 is a fully integrated, low-noise linear voltage regulator that is both cost-effective and efficient. It is capable of providing high-current power regulation with a high degree of accuracy. The low quiescent current and the adaptive voltage scaling (AVS) feature makes the device ideal for applications such as cell phone and automotive digital power supplies, portable devices, GPS, wearable devices, and robots.

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