LT3029HDE#PBF

Voltage Dropout (Max):	0.46V @ 500mA, 0.46V @ 500mA
Base Part Number:	LT3029
Supplier Device Package:	16-DFN (4x3)
Package / Case:	16-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	67dB (120Hz)
Current - Output:	500mA, 500mA
Series:	--
Voltage - Output (Max):	19.5V
Voltage - Output (Min/Fixed):	1.215V
Voltage - Input (Max):	20V
Number of Regulators:	2
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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Introduction to LT3029HDE#PBF

The LT3029HDE#PBF is a positive low dropout (LDO) voltage regulator for use in mobile applications. It is part of Linear Technology\'s family of ultra low dropout regulators, offering high efficiency and very low noise performance. The LT3029HDE#PBF features a 0.9V voltage drop with up to 1.5A output current. Its ultra low dropout feature provides the lowest input to output voltage differential of any device in its class, allowing higher power savings relative to traditional pieces of linear technology. With a high power supply rejection ratio (PSRR) of 80dB at 1kHz, the device is used to power or charge MCUs or RF boards in the most demanding of applications. The LT3029HDE#PBF also features a low quiescent current of only 1mA that guarantees the lowest power consumption with higher current output.

Application Field and Working Principle of LT3029HDE#PBF

The most common application field of LT3029HDE#PBF is in mobile applications. Its ultra low dropout feature enables it to be used to power or charge MCUs or RF boards in mobile applications, including mobile phones and tablets. Additionally, its low quiescent current guarantees the lowest possible power consumption with higher current output. As the smallest and most efficient Linear Technology device in its class, the LT3029HDE#PBF provides superior performance relative to other devices in its class.The LT3029HDE#PBF can be used in various applications such as OLED display modules, cellular modules, RF modules, microprocessors and other low noise/high power applications. The device is specifically tailored for multi-rail power sources, allowing it to be used for both negative and positive voltage rails.The working principle of the LT3029HDE#PBF is simple and straightforward. The input voltage, VIN is applied to an internal series regulator which drops the voltage to the output, VOUT. The regulator operates in fixed frequency mode and is enabled by an external P-Channel FET. The LT3029HDE#PBF has an adjustable output voltage range of 0.9V to 3.3V, a maximum input voltage of 5.5V and a maximum output current of 1.5A. The device also features short circuit protection, reverse current protection, thermal overload protection and current limiting.The LT3029HDE#PBF also features a Thermal Regulation characteristic which helps maintain tight output regulation and provides superior thermal regulation compared to that of traditional linear technology devices. The Thermal Regulation characteristic works by modulating the device\'s switching frequency based on the temperature of the device, which helps to maintain a constant output voltage at elevated temperatures. This helps to ensure that the device can operate reliably under extreme temperatures and still provide the same level of performance.

Conclusion

In conclusion, the LT3029HDE#PBF from Linear Technology is an ideal solution for mobile applications, due to its low dropout voltage and extremely low power consumption. It is a highly efficient, high power rejection, ultra low dropout voltage regulator with a wide range of features, making it the perfect choice for multi-rail power sources. It can be used in a variety of applications, such as powering or charging MCUs or RF boards, and providing efficient power regulation in harsh environments. With its Thermal Regulation feature, the LT3029HDE#PBF is an ideal solution for ensuring reliable performance in high-temperature environments.

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