Voltage - Output (Min/Fixed):	--
Base Part Number:	LT8362
Supplier Device Package:	10-DFN (3x3)
Package / Case:	10-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C (TJ)
Synchronous Rectifier:	--
Frequency - Switching:	2MHz
Current - Output:	2A (Switch)
Voltage - Output (Max):	60V (Switch)
Series:	--
Voltage - Input (Max):	60V
Voltage - Input (Min):	2.8V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost, SEPIC
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The LT8362HDD#TRPBF is a high-efficiency, synchronous buck-boost switching regulator from Linear Technology. It is designed for operation from a 2.7V to 18V input and provides outputs from 1.8V to 16V. The device combines a low-noise, fixed-frequency current mode architecture and adaptive carrier frequency to deliver a high-efficiency, simple to use and fully protected solution for a wide range of input and output voltages. This device includes an on-chip internal power FET, low-side MOSFET, boost inductor and synchronous rectifier to deliver higher efficiency than traditional buck-boost switching regulators.

PMIC – Voltage Regulators – DC-DC Switching Regulators

DC-DC switching regulators are used to convert a DC input voltage to an output voltage with advanced features such as current limit, soft-start and frequency synchronization. They can provide power supply with greater efficiency, lower noise, and adjustable output voltage. The DC-DC switching regulator LT8362HDD#TRPBF can support a wide range of input and output voltages, and is ideal for applications such as portable music players, smartphones and tablets.

Features and Benefits of the LT8362HDD#TRPBF

The LT8362HDD#TRPBF is a high-efficiency DC-DC switching regulator from Linear Technology that is optimized for wide V IN and V OUT applications. The device operates from a 2.7V to 18V input voltage range and delivers an output voltage from 1.8V up to 16V. It also delivers a constant switching frequency of 550kHz to 1.5MHz for an optimal efficiency over a wide load range.The device integrates an adaptive carrier frequency, which enables the device to minimize switching losses, minimize EMI and optimize light load efficiency. Other features include adjustable soft-start current limit with peak current mode control and variable frequency operation up to 1.5MHz. It also provides programmable output voltage accuracy and multiple protections such as over-current, over-temperature and short-circuit protection.

Applications of the LT8362HDD#TRPBF

The LT8362HDD#TRPBF is a high-efficiency, synchronous buck-boost switching regulator designed for a wide range of input and output voltages. It is ideal for multiple applications such as high-efficiency battery-powered equipment, portable music players, smartphones and tablets. It is also suitable for applications where high efficiency, low noise and power supply flexibility are required.

Working Principle of the LT8362HDD#TRPBF

The LT8362HDD#TRPBF is a synchronous buck-boost switching regulator that operates in one of three modes – buck, boost, or buck-boost. In buck mode, when the input voltage is higher than the output voltage, the device operates as a synchronous buck converter, providing power from the input to the output. In boost mode, when the output voltage is higher than the input voltage, the device operates as a synchronous boost converter, providing power from the output to the input. In buck-boost mode, the device operates as a synchronous buck-boost converter, and provides power from the input to the output or from the output to the input depending on the relative voltages of the input and output.The device features internal power FETs, low-side MOSFETs, boost inductor, and synchronous rectifiers to provide high efficiency over a wide range of load currents. The device also has an integrated soft-start function and adjustable current limit protection to prevent inrush current during startup and release over current condition.The adaptive carrier frequency feature enables the device to operate at a low-noise fixed-frequency current mode architecture enabling minimal EMI and optimized efficiency at light loads. The device is also capable of operating with an adjustable frequency up to 1.5MHz.

Conclusion

The LT8362HDD#TRPBF is a high-efficiency, synchronous buck-boost, switching regulator designed for a wide range of input and output voltages. This device provides high efficiency and low noise, making it ideal for multiple applications such as high-efficiency battery-powered equipment, portable music players, smartphones and tablets. This device integrates an adaptive carrier frequency feature, adjustable soft-start current limit with peak current mode control, multiple protections and adjustable frequency operation up to 1.5MHz.

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