LTC3834IFE#TRPBF

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The LTC3834IFE#TRPBF is a high performance synchronous step-down DC/DC switching controller, which is designed to provide a wide range of power solutions and provide high efficiency and accurate regulation. It works in a variety of applications, including personal computers, handheld devices, and industrial systems, providing a high-performance solution for power management.

Overview of LTC3834IFE#TRPBF:

The LTC3834IFE#TRPBF features a wide input voltage range and a low on-resistance internal switch to maintain high efficiency and accurate regulation. It also integrates a low noise clock oscillator and an adjustable clock frequency synchronized with the input supply. The device works with a wide variety of topologies, from single-supply dual-output to boost based multi-output systems. Additional features include a high accuracy input voltage monitor, programmable operating frequency (up to 1.2 MHz) and adjustable soft-start/pre-bias. The LTC3834IFE#TRPBF provides a combination of high efficiency, high performance, low power consumption, and high reliability.

Features of the LTC3834IFE#TRPBF:

• Wide 4V to 48V Input Voltage Range
• Low On-Resistance Internal Switch
• High Accuracy Input Voltage Monitor
• 2MHz Frequency Synchronization
• Integrated Low Noise Clock Oscillator
• Low Power Consumption
• Programmable Soft-Start/Pre-Bias
• High Reliability

Applications of the LTC3834IFE#TRPBF:

The LTC3834IFE#TRPBF is ideally suited for a wide range of applications, such as automotive, industrial, communications, computer, and consumer electronics. It is used in a variety of applications, including power management for personal computers, portables and handheld devices, as well as for power supply for servers, routers and switches. It can also be used for power supply design for FPGAs, DSPs, ADC, DAC and ASSPs, providing high efficiency and accurate regulation.

Working Principle of the LTC3834IFE#TRPBF:

The LTC3834IFE#TRPBF works in a synchronous, step-down DC/DC mode. It has two different operating modes, which can be selected based on the application needs. The first mode is the pulse width modulation (PWM) mode, which uses an internal switch to control the gate-drive voltage to produce the output voltage. The second mode is the burst mode, which reduces the input current ripple by keeping the switch off during the OFF cycle. In both modes, the switch is kept ON high resistance during the start-up phase, to reduce the inrush current.

The device also has a low-noise clock oscillator, which is used to synchronize the operation with the input supply. This clock oscillator is adjustable from 200 kHz up to 1.2 MHz to match the application needs. The integrated input voltage monitor can detect up to 2.5V of input voltage and enable the output when the input reaches its preset level. The output voltage can be monitored via the Voltage Feedforward output, which allows the use of external compensation.

Conclusion:

The LTC3834IFE#TRPBF is a high performance synchronous step-down DC/DC switching controller, which is specifically designed to provide a wide range of power solutions. It is suitable for a variety of applications, including personal computers, handheld devices, and industrial systems, providing a high-performance solution for power management. The device features a wide input voltage range, adjustable clock frequency, and a high accuracy input voltage monitor, as well as a low on-resistance internal switch, a low noise clock oscillator and adjustable soft-start/pre-bias. It provides a combination of high efficiency, high performance, low power consumption, and high reliability.

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