LT8304IS8E#PBF

Voltage - Output (Min/Fixed):	1V
Base Part Number:	LT8304
Supplier Device Package:	8-SOIC-EP
Package / Case:	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	11kHz ~ 350kHz
Current - Output:	2A (Switch)
Voltage - Output (Max):	150V (Switch)
Series:	--
Voltage - Input (Max):	100V
Voltage - Input (Min):	3V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Flyback
Output Configuration:	Positive or Negative, Isolation Capable
Function:	Step-Up/Step-Down
Part Status:	Active
Packaging:	Tube

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Introduction

The LT8304IS8E (Series 8) is a high-performance synchronous DC-DC converter designed for space-sensitive applications. This device features wide input voltage range from 2.3V to 17V and can handle up to 10A output current, along with adjustable and fixed output voltage options. It provides excellent efficiency and excellent transient performance. The LT8304IS8E#PBF is part of the bigger LT8304 family, and it is integrated with internal power MOSFETs, current sense resistors, loop compensation components and small-sized inductors. It has 3 pins to select output voltage, a 3GHz SMBusTM/I2C interface and can support 50MHz adjustable switching frequency. The LT8304IS8E#PBF is ideal for both industrial and high-end FPGA applications, offering high performance at a competitive cost.

Application Field

The LT8304IS8E#PBF is suitable for a wide range of applications, including:

• High-performance server and workstation applications
• Mobile computing design
• Storage and hardware acceleration applications
• GPU and CPU processor power supplies
• datacenter applications

It can also be utilized to power a graphics processor, high-speed memories, FPGAs and other SoC-level components.

Working Principle

The LT8304IS8E#PBF DC-DC converter, which operates at a constant frequency or Pulse Width Modulation (PWM) mode, works on a very simple principle. When the switching frequency is set, the oscillator generates a signal and the signal feeds the control by the PWM logic circuitry. The path of the current generated is determined by the IC\'s internal MOSFETs and other wiring.When the switch is turned on, the power from the input source is applied to the inductor and a flow of current is generated. During this time, energy is stored in the inductor and the current flows toward the output capacitors and load at the same time. At this point, if the I/O capacitors are fully charged, the current will not flow.When the switch is turned off, the inductor\'s collapsed magnetic field releases its stored energy and provides current to the output terminals, as well as to the output capacitors, which help regulate the current. From this point, the cycle is repeated and the converted voltage is regulated.

Conclusion

The LT8304IS8E#PBF is a high-efficiency DC-DC switching regulator suitable for a variety of applications. It is equipped with avalanche-rugged MOSFETs, adjustable and fixed output voltage levels, 3-pin output voltage selection and a 3GHz SMBus/I2C interface. It offers excellent efficiency and superior transient performance, making it an ideal choice for high-end FPGA applications in datacenters, storage and hardware acceleration, GPU and CPU processing, and workstations.

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