LTC7103MPUHE#TRPBF

Voltage - Output (Min/Fixed):	1V
Base Part Number:	LTC7103
Supplier Device Package:	36-QFN (5x6)
Package / Case:	26-WFQFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Synchronous Rectifier:	Yes
Frequency - Switching:	1MHz
Current - Output:	2.3A
Voltage - Output (Max):	105V
Series:	--
Voltage - Input (Max):	105V
Voltage - Input (Min):	4.4V
Number of Outputs:	1
Output Type:	Adjustable
Topology:	Buck
Output Configuration:	Positive
Function:	Step-Down
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The LTC7103MPUHE#TRPBF is a Low-Frequency Monolithic Synchronous Buck Regulator from Linear Technology. It is part of the power conversion infrastructure which serves to provide voltage to the microcontrollers and other peripherals found in the most challenging applications.The LTC7103MPUHE#TRPBF is designed for extreme conditions, including high temperatures and wide input bus voltages. It is designed for a wide input voltage range of up to 20 volts for adjustability in applications with varying supply conditions. The input voltage range also helps to avoid excessive current draw at low input voltage levels, as it can enter into a low-power sleep mode when the input voltage falls to its lower limit. The synchronous buck regulator also offers excellent thermal performance during heavy load steps, thanks to its thermally enhanced TSOT-23-6 package.The LTC7103MPUHE#TRPBF can deliver an output current of up to 1.5A and features both continuous mode and pulse-skipping mode operation which allows for improved efficiency without sacrificing output noise reduction. The monolithic synchronous buck regulator also features a fixed-frequency architecture, with the typical switching frequency of 1MHz. This high switching frequency, combined with low-resistance power MOSFETs, helps to reduce the amount of time needed to sample the feedback voltage and quickly adjust the output voltage.The LTC7103MPUHE#TRPBF also includes a few other features as well, such as short-circuit protection, input undervoltage lockout, overcurrent protection, output overvoltage protection, and current-limit protection.Applications:The LTC7103MPUHE#TRPBF is ideal for a variety of different applications, including industrial and automotive systems, such as solenoids, sensors, and relays; communications systems such as cellular base stations and transmission systems; and high-end audio applications.Working Principle:The LTC7103MPUHE#TRPBF works on the principle of a series-regulation synchronous buck regulator. It uses a high-speed power MOSFET and current-mode control for low noise and fast, error-free regulation of output voltage. The integrated regulator regulates the output voltage from the input voltage by using the voltage-mode feedback control. The regulator first samples the input voltage and compares it to a reference voltage. The output voltage is regulated by adjusting the voltage of the switching power MOSFET. The output voltage is monitored and regulated by an error amplifier which compares the outputs of the feedback-divider network with the reference voltage. The error amplifier then adjusts the gate voltage of the switching power MOSFET which in turn will regulate the output voltage.Conclusion:The LTC7103MPUHE#TRPBF is a low-frequency monolithic synchronous buck regulator perfect for a wide range of applications. It offers excellent thermal performance, a wide input voltage range and it can deliver up to 1.5A of output current. The LTC7103MPUHE#TRPBF also features both continuous and pulsed-skipping mode operations and is designed for low noise and fast, error-free voltage regulation. This device uses a series-regulation circuit featuring voltage-mode feedback control and a high-speed power MOSFET to accurately and quickly adjust the output voltage. It also includes a number of protection features such as short-circuit protection, input undervoltage lockout, output overvoltage protection and current-limit protection to ensure safe operation. The LTC7103MPUHE#TRPBF is an ideal choice for many different applications, including automotive and industrial systems, communications systems and high-end audio devices.

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