LA5774MP-DL-E Allicdata Electronics
Allicdata Part #:

LA5774MP-DL-E-ND

Manufacturer Part#:

LA5774MP-DL-E

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: ON Semiconductor
Short Description: IC REG BUCK ADJ 3.1A SMP5
More Detail: Buck Switching Regulator IC Positive Adjustable 1....
DataSheet: LA5774MP-DL-E datasheetLA5774MP-DL-E Datasheet/PDF
Quantity: 1000
1 +: 0.00000
Stock 1000Can Ship Immediately
$ 0
Specifications
Voltage - Output (Min/Fixed): 1.26V
Base Part Number: LA5774
Supplier Device Package: SMP5
Package / Case: TO-252-6, DPak (5 Leads + Tab)
Mounting Type: Surface Mount
Operating Temperature: -30°C ~ 125°C (TJ)
Synchronous Rectifier: No
Frequency - Switching: 160kHz
Current - Output: 3.1A (Switch)
Voltage - Output (Max): 28V
Series: --
Voltage - Input (Max): 28V
Voltage - Input (Min): 4.5V
Number of Outputs: 1
Output Type: Adjustable
Topology: Buck
Output Configuration: Positive
Function: Step-Down
Part Status: Obsolete
Packaging: Tape & Reel (TR) 
Description

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Introduction to LA5774MP-DL-E

LA5774MP-DL-E is an integrated power module in the DC-DC switching voltage regulator family that converts a DC input voltage to a lower, regulated DC output voltage. This module is composed of a current mode pulse width modulated (PWM) DC to DC controller and a power switch transistor equipped with a series Schottky protection diode. The LA5774MP-DL-E is designed to provide improved efficiency over competing fixed frequency switching regulators, while also providing better noise immunity, faster transient response time and improved thermal performance.

PMIC - Voltage Regulators - DC DC Switching Regulators

A DC-DC switching voltage regulator is a device used to convert a DC input voltage to a lower, regulated DC voltage output. It is widely used in many consumer electronics to reduce voltage, regulate voltage, and provide over-current and over-temperature protection. In recent years, PMIC – Voltage Regulators – DC DC Switching Regulators are achieving higher performance and improved efficiencies.

Features and Advantages of LA5774MP-DL-E

  • Wide input voltage range from 4.5 V to 28 V
  • High efficiency: up to 93%
  • Adjustable Output Voltage
  • Output Current Limit up to 3.7A
  • Fixed frequency current mode switching architecture
  • Internal Soft-Start
  • Low Output Ripple and Noise

Applications

The LA5774MP-DL-E is ideal for DC to DC converter applications that require high efficiency and low cost. It is suitable for automotive, telecom and industrial applications including LED drivers, battery powered systems, automatic testing equipment, medical devices and displays.

Working Principle

The LA5774MP-DL-E uses a current mode PWM switching topology to convert an input voltage to a lower, regulated output voltage. The device provides a fixed frequency, PWM output voltage from an adjustable reference voltage. The PWM pulse width is controlled by an internal current sense comparator. During operation two duty cycles are generated, one being the condition when the power switch is conducting and the other when the power switch is off. The duty cycle is controlled by a voltage compare circuit such that as the output voltage is increased the duty cycle begins to decrease. When the output voltage reaches the desired level the duty cycle remains constant.

Conclusion

The LA5774MP-DL-E is an integrated power module from the DC-DC switching voltage regulator family that is designed to provide improved efficiency and superior performance. This power module is suitable for a wide range of applications such as automotive and telecommunication and is capable of providing adjustable output voltages, high efficiency and low output ripple and noise. The fixed frequency current mode switching architecture and internal soft-start feature of the device makes it more efficient and stable.

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

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