LT3752MPFE#PBF

Frequency - Switching:	100kHz ~ 500kHz
Base Part Number:	LT3752
Supplier Device Package:	38-TSSOP-EP
Package / Case:	38-TFSOP (0.173", 4.40mm Width), 31 Leads, Exposed Pad
Operating Temperature:	-55°C ~ 150°C (TJ)
Control Features:	Enable, Frequency Control, Soft Start
Serial Interfaces:	--
Clock Sync:	Yes
Synchronous Rectifier:	Yes
Duty Cycle (Max):	95%
Series:	--
Voltage - Supply (Vcc/Vdd):	6.5 V ~ 100 V
Output Phases:	1
Number of Outputs:	1
Topology:	Forward Converter
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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LT3752MPFE#PBF Application Field and Working Principle

PMIC - Voltage Regulators - DC DC Switching Controllers have become increasingly popular over the last few years. With the rising demand for high-efficiency and low-power power supplies, these devices play an important role in the development of competitive and cost-effective electronics. The LT3752MPFE#PBF is a cost-effective member of the high-performance DC DC controller family designed to meet the rigorous requirements of efficient, low-power supplies. This section looks at the application fields of the LT3752MPFE#PBF and its working principle.

Application Field of LT3752MPFE#PBF

The LT3752MPFE#PBF is a DC DC controller with a wide range of applications, including: powering server processors, computing or mobile device applications, cloud computing, and industrial applications, among others. Its features, such as current limit programming, fast duty-cycle limit programming, and power surge protection, make it ideal for such applications. It has a wide input voltage range of 5-55V and provides multiple output voltage options. It also supports Pulse Width Modulated (PWM) clock synchronization and frequency dithering. The IC also provides cycle-by-cycle current limit, temperature compensation, and fast transient response, making it suitable for industrial and automotive applications.

Working Principal of LT3752MPFE#PBF

The LT3752MPFE#PBF is a sophisticated integrated circuit (IC) that is capable of providing stable operation and a wide range of output current and power. It consists of an operational amplifier, comparators, a voltage reference, and other essential components. The device works in three stages: the voltage regulation stage, the standby stage, and the power cycle stage.The voltage regulation stage is responsible for detecting and maintaining the desired output voltage. In this stage, the input voltage is compared with the reference voltage through the operational amplifier. If the voltage exceeds the pre-determined target level, then the IC will turn on the power switch to increase the output voltage. Conversely, if the voltage falls below the target level, the power switch will be turned off to reduce the voltage.The standby stage is where the IC is turned off. In this stage, the device is in idle mode and does not output power.The power cycle stage is where the majority of the device’s functions are carried out. It is initiated by the feedback loop. The reference voltage received by the feedback loop is then compared with the input voltage by the comparators in order to determine the desired output. The power switch is then turned on and off at a rapid rate to regulate the output voltage.The LT3752MPFE#PBF device also brings some additional features, like onboard N-channel MOSFETs suitable for high-current switch, adjustable current limit, adjustable output voltage, and fast transient response.From the application field to the working principle, it is clear that the LT3752MPFE#PBF is an IC that offers a wide range of features and high-performance power solutions. It is suitable for a range of applications, from servers to industrial and automotive, due to its high efficiency and dependability. The device also provides flexible output current and voltage levels, high-current MOSFETs, and multiple protection features, making it an ideal choice for any application.

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