LTC3633AIUFD-3#TRPBF Allicdata Electronics
Allicdata Part #:

LTC3633AIUFD-3#TRPBF-ND

Manufacturer Part#:

LTC3633AIUFD-3#TRPBF

Price: $ 4.13
Product Category:

Integrated Circuits (ICs)

Manufacturer: Linear Technology/Analog Devices
Short Description: IC REG BUCK ADJ 3A DL SYNC 28QFN
More Detail: Buck Switching Regulator IC Positive Adjustable 1....
DataSheet: LTC3633AIUFD-3#TRPBF datasheetLTC3633AIUFD-3#TRPBF Datasheet/PDF
Quantity: 1000
2500 +: $ 3.74636
Stock 1000Can Ship Immediately
$ 4.13
Specifications
Voltage - Output (Min/Fixed): 1.5V
Base Part Number: LTC3633
Supplier Device Package: 28-QFN (4x5)
Package / Case: 28-WFQFN Exposed Pad
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 125°C (TJ)
Synchronous Rectifier: Yes
Frequency - Switching: 500kHz ~ 4MHz
Current - Output: 3A
Voltage - Output (Max): 12V
Series: --
Voltage - Input (Max): 20V
Voltage - Input (Min): 3.6V
Number of Outputs: 2
Output Type: Adjustable
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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PMIC - Voltage Regulators - DC DC Switching Regulators

This article introduces the application field and working principle of LTC3633AIUFD-3#TRPBF, which is a DC DC switching regulator and is a type of PMIC - Voltage Regulators.

Introduction to LTC3633AIUFD-3#TRPBF

LTC3633AIUFD-3#TRPBF is a synchronous buck DC/DC regulator IC, capable of delivering up to 47 A peak. Its voltage output is adjustable and its input voltage ranges from 4.5 V to 36 V. It features flexible power conversion, with features that support a wide range of voltage settings or a wide duty cycle range for adjustable current limit.

The regulator utilizes advanced current mode feedback control and a precise reference to maintain regulated output despite the effects of line and load changes. It provides a 100 kHz to 750 kHz frequency range, allowing the user to select the operating frequency from a wide range of settings to suit their design needs.

Application Field of LTC3633AIUFD-3#TRPBF

The LTC3633AIUFD-3#TRPBF switching regulator is suitable for consumer, telecom and communications, networking, industrial, automotive and military applications. It is often used to power low-voltage digital and RF circuits with currents up to 47 A.

It is also suitable for a wide range of other applications such as low-voltage battery charging, 12/24 V telecom supply, computer peripherals, portable medical devices, motor controls, servo actuators and load interface with Li ion batteries.

Working Principle of LTC3633AIUFD-3#TRPBF

The LTC3633AIUFD-3#TRPBF regulator is a constant-on-time (COT) buck converter. This type of converter has an inherent input voltage transient droop characteristic, due to the COT control loop compensation network. During an input voltage transient, the regulator ramps up its output current, causing an output-voltage droop.

The COT control loop also regulates a wide range of operating frequencies from 100 kHz to 750 kHz. It is typically held at a fixed frequency and synchronized by an external components that connect to the FP pin, making it easy to optimize it for high-efficiency operation over the entire line and load range.

The LTC3633AIUFD-3#TRPBF includes a digital soft-start circuit that helps reduce inrush current when the regulator is enabled. Additionally, the regulator features foldback current limit protection and overtemperature protection, for a safe and reliable performance.

Conclusion

In conclusion, the LTC3633AIUFD-3#TRPBF is a DC DC switching regulator with a wide flexibly of applications, and its COT control loop provides a wide range of frequency settings that allow the user to optimize it for high efficiency over the entire line and load range. Its digital soft-start helps reduce inrush current and it includes foldback current limit protection and overtemperature protection, making it suitable for a variety of application fields.

The specific data is subject to PDF, and the above content is for reference

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