LT8570EDD#TRPBF

Voltage - Output (Min/Fixed):	3mV, 1.204V
Base Part Number:	LT8570
Supplier Device Package:	8-DFN (3x3)
Package / Case:	8-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	200kHz ~ 1.5MHz
Current - Output:	750mA (Switch)
Voltage - Output (Max):	65V (Switch)
Series:	--
Voltage - Input (Max):	40V
Voltage - Input (Min):	2.55V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Boost, Cuk, SEPIC
Output Configuration:	Positive or Negative
Function:	Step-Up, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LT8570EDD#TRPBF is a highly integrated power management integrated circuit (PMIC) for low noise, high efficiency AC/DC and DC/DC power conversion. This PMIC is among the DC/DC switching regulator product family manufactured by Linear Technology. It is a space-saving, cost-efficient, and a high-performance part ideally suited for applications such as data-acquisition systems, renewable energy systems, IoT, wearable devices, and small embedded systems.

Features

The LT8570EDD#TRPBF comes with several integrated features that make it stand out from other competing products in the market. It is an integrated, single-channel boost controller with advanced burst mode operation for better efficiency, upwards of 98%. It also includes an internal synchronous rectifier for maximum efficiency and an internal soft start function for a smooth and predictable start-up. The LT8570EDD#TRPBF also offers a wide operating temperature range (−40°C to 125°C) and a low external parts count, making it easier to design and optimize the entire power solution.

Applications

The LT8570EDD#TRPBF is suitable for a variety of applications in consumer electronics, industrial, and medical equipment. It can be used in any device requiring a low-noise, high-efficiency high-voltage supply. It is especially useful in applications such as cellular phones, industrial control systems, fitness equipment, remote meters, professional audio and video equipment, point-of-sale systems, and even commercial aircraft.

Working Principle

The LT8570EDD#TRPBF is a high-performance boost controller. It enables an increase in voltage from a low input voltage to a high output voltage, with a fully integrated serial interface. The switch node is driven based on real-time feedback or forced duty cycle control. A serial interface allows the duty cycle of the buck switch node to be programmed the desired target. In addition, the integrated voltage loop control ensures the output voltage is regulated to the target voltage. The boost controller uses a fixed frequency, synchronous-rectified buck converter to maintain the output voltage. This integrated synchronous conversion also reduces board size and cost, making the LT8570EDD#TRPBF an ideal choice for a variety of applications.

Advantages

The main advantages of the LT8570EDD#TRPBF are its compact size, efficient performance, and wide operating temperature range. The small size and low external parts count make this part easier to design and optimize, while providing increased efficiency and lower cost. The wide operating temperature range (−40°C to 125°C) makes the LT8570EDD#TRPBF suitable for a wide variety of applications, while maintaining stable and reliable performance in a variety of environments. Another notable feature is its ability to handle a wide range of input and output voltages, making it a good fit for many DC/DC power converter applications.

Conclusion

The LT8570EDD#TRPBF is a highly integrated and advanced power management integrated circuit that is suitable for applications such as data-acquisition systems, renewable energy systems, IoT, wearable devices, and small embedded systems. It is an ideal choice for powering devices needing a high-efficiency and low-noise power supply, such as cellular phones, industrial control systems, professional audio and video equipment, and point-of-sale systems. With its low external parts count, small size, wide operating temperature range, and high-efficiency performance, the LT8570EDD#TRPBF is an ideal choice for a variety of DC/DC switching regulator applications.

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