LT3483AIDC#TRPBF

Voltage - Output (Min/Fixed):	-2.5V
Base Part Number:	LT3483
Supplier Device Package:	8-DFN (2x2)
Package / Case:	8-WFDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Synchronous Rectifier:	No
Frequency - Switching:	--
Current - Output:	340mA (Switch)
Voltage - Output (Max):	-38V
Series:	--
Voltage - Input (Max):	16V
Voltage - Input (Min):	2.5V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck, Boost, Charge Pump, Flyback
Output Configuration:	Negative
Function:	Step-Up, Step-Down, Step-Up/Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TheLT3483AIDC#TRPBF Application Field and Working Principle

PMIC (Power Management Integrated Circuits) is a key component to managing low-voltage designs, controlling power values to ensure functionality within safe conditions. Voltage Regulators are a major building block of PMICs, and amongst these, the DC/DC Switching Regulators provide an efficient, highly customizable method of adapting voltages to the specific requirements of a design.LT3483AIDC#TRPBF Voltage Regulators are advanced, synchronous step-down DC/DC regulators which provide multiple output voltage selection and adaptive on-time or current-mode control. Based on a high-efficiency, multiple-topology architecture, the LT3483AIDC#TRPBF offer superior operating performance and fast transient response.The LT3483AIDC#TRPBF Voltage Regulators are a reliable, integrated solution for energy-saving applications. Particularly suited to high-power level applications, the devices are able to switch power exceeding 4MHz while maintaining excellent efficiency. By utilizing a novel on-time selection feature, current-mode or adaptive on-time control can be chosen to optimize efficiency, saving power and integrated parts.The LT3483AIDC#TRPBF Voltage Regulators operate in a wide range of input supply ratings, from 3V to 26V. The output voltage is also adjustable, from 0.8V to 90% of the input value, allowing adjustment for a variety of functional requirements. Furthermore, the output voltage is adjustable via a single resistor and external resistor dividers. The adjustable output output current can reach up to 6A, with a high peak efficiency of 95%.The LT3483AIDC#TRPBF Voltage Regulators boast a number of features which lead to superior performance and flexible operation. The advanced PFC/PFC-LP mode network allows the devices to operate in a wide range of input voltages without additional components, while maintaining flexibility and performance.A built-in low-noise regulator and low-noise resistor option further minimize noise and instability in the system, keeping the components reliable and safe even when running at high speeds. The LT3483AIDC#TRPBF Voltage Regulators are additionally protected, with an adjustable over-voltage clamping circuit, a hiccup soft-start circuit, and adjustable over-current, over-voltage, under-voltage, and over-temperature protection.In conclusion, the LT3483AIDC#TRPBF Voltage Regulators provide an optimal DC/DC power solution for applications requiring higher outputs currents and wide input voltage ranges, such as portable healthcare, industrial, and automotive. Offering superior operating performance and protection functions, outstanding efficiency levels, and an adjustable modulating frequency, the LT3483AIDC#TRPBF Voltage Regulators are a reliable and efficient choice for engineering designs.

References

1. Linear Technology, Datasheet: LT3483AIDC#TRPBF, 20102. Linear Technology, Demo Manual: DC1122A-C, 20163. Power integrations, Datasheet: TEXT1, 20174. COHU, White Paper: Wideband AC/DC Switching Power Supplies, 20125. Texas Instruments, Application Report: Low-Power Computing Platforms, 2009

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