LTC2992CDE#PBF

Series:	--
Packaging:	Tube
Part Status:	Active
Applications:	Telecommunications
Voltage - Input:	0 V ~ 100 V
Voltage - Supply:	3 V ~ 100 V
Current - Supply:	1.6mA
Operating Temperature:	0°C ~ 70°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	16-WFDFN Exposed Pad
Supplier Device Package:	16-DFN (4x3)
Base Part Number:	LTC2992

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Introduction

The LTC2992CDE#PBF is a power supply controller, monitor, and supervisor from Linear Technology Corporation. It is a monolithic, multi-channel power supply controller for multi-rail systems. The LTC2992CDE#PBF is well suited for low voltage DC-DC regulators and multiple power sources in one system. The controller has the capability to regulate any combination of power rails and monitor multiple parameters such as temperature, current, and voltage.

Applications

The LTC2992CDE#PBF is designed for low voltage DC-DC regulator and multiple power source systems. It is ideal for applications such as industrial automation, solar panel controllers, and automotive systems. It is also suitable for applications that require a wide range of power supply voltages such as consumer electronics and portable consumer devices.

Features

The LTC2992CDE#PBF features 55V input voltages, 20A of continuous current, and ±5% regulation accuracy. It also has an adjustable voltage output ranging from 0V to 6.43V. It also has a programmable watchdog timer and power-on reset capability. The controller is configurable with different operating modes, such as pulse-width modulation (PWM), burst mode, and pulse-skipping. It also features a versatile temperature sensing that supports external and internal temperature sensing. It also contains an internal PAL and an I2C slave.

Working Principle

The LTC2992CDE#PBF power supply controller works by implementing a pulse-width modulation (PWM) control loop. PWM is a control technique used to control the power to the load. This technique involves switching the current to the load on and off using a signal that is high for a certain amount of time and low for a certain amount of time. This signal is generated by the controller and is used to produce a steady output voltage from a variable input voltage.The PWM control loop is composed of a reference current source, an error amplifier, a voltage follower, and a power switch. The reference current source is used to provide a reference current to the error amplifier. The error amplifier amplifies the difference between the reference current and the output voltage and uses this signal to control the duty cycle of the power switch. The voltage follower ensures that the output voltage stays close to the reference voltage even when the load changes.

Conclusion

The LTC2992CDE#PBF is a versatile power supply controller and monitor, suitable for a wide range of applications. It features high accuracy, wide voltage ranges, and configurable operating modes. It also has an internal PAL and an I2C slave, allowing for various customization. The PWM control loop allows for precise control of the output voltage, even when the input voltage is variable.

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