LTC1874EGN#TRPBF Allicdata Electronics
Allicdata Part #:

LTC1874EGN#TRPBF-ND

Manufacturer Part#:

LTC1874EGN#TRPBF

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Linear Technology/Analog Devices
Short Description: IC REG CTRLR BUCK 16SSOP
More Detail: Buck Regulator Positive Output Step-Down DC-DC Co...
DataSheet: LTC1874EGN#TRPBF datasheetLTC1874EGN#TRPBF Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Frequency - Switching: 550kHz
Base Part Number: LTC1874
Supplier Device Package: 16-SSOP
Package / Case: 16-SSOP (0.154", 3.90mm Width)
Operating Temperature: -40°C ~ 85°C (TA)
Control Features: Enable
Serial Interfaces: --
Clock Sync: No
Synchronous Rectifier: No
Duty Cycle (Max): 100%
Series: --
Voltage - Supply (Vcc/Vdd): 2.5 V ~ 9.8 V
Output Phases: 1
Number of Outputs: 2
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Output Type: Transistor Driver
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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LTC1874EGN#TRPBF Application Field and Working Principle

The LTC1874EGN#TRPBF is a monolithic switching frequency step-up DC-DC controller from Linear Technology. It is classified into the PMIC (Power Management IC) subcategory of Voltage Regulators, specifically DC DC Switching Controllers. It has an operating temperature range between -40°C to 125°C, making it suitable for many different applications.

Applications

The LTC1874EGN#TRPBF is ideal for use in applications that require high efficiency, low noise, and fast transient responses. Such applications include Point-Of-Load (POL) regulators, battery chargers, USB charge pumps, and piezoelectric transducers. It can also be used in distributed power systems, server applications, digital cameras, electronic ballasts, and automotive electronics.

Features

The controller features an input voltage range of 3V to 30V, an output current limit range of 0A to 4A, an output voltage range of 0V to 30V, a switching frequency of 650kHz to 1.8MHz, an adjustable soft-start feature, and many built-in protection features. It also features programmable current-limit thresholds and an internal voltage reference.

Working Principle

The LTC1874EGN#TRPBF works according to the principle of pulse width modulation. This involves switching pulses of varying widths to regulate the output voltage. The integrated circuit compares the output voltage to its internal reference voltage and generates two control signals, UVLO_HI and UVLO_LO, that control the power switch. The pulse width of these signals is proportional to the difference between the output voltage and the reference voltage. When the output voltage is higher than the reference, the duty cycle of the signals decreases, and when the output voltage is lower, then duty cycle increases. This way, the output voltage is always stabilized.

Conclusion

The LTC1874EGN#TRPBF is a monolithic switching frequency step-up DC-DC controller from Linear Technology that is classified under the Voltage Regulators subcategory of PMICs – more specifically, DC DC Switching Controllers. It is suitable for a wide range of applications due to its high efficiency, low noise, and fast transient response capabilities. It works by regulating the output voltage through pulse width modulation, comparing the output voltage to its internal reference voltage and adjusting the pulse width of the control signals accordingly.

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

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