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LMR38020FDDAR

Name: LMR38020FDDAR
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 2A 8SOPWR

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資料表 LMR38020FDDAR DataSheet
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規格

Series	SIMPLE SWITCHER®
Part Status	Active
Function	Step-Down
Output Configuration	Positive
Topology	Buck
Output Type	Adjustable
Number of Outputs	1
Voltage - Input (Min)	4.2V
Voltage - Input (Max)	80V
Voltage - Output (Min/Fixed)	1V
Voltage - Output (Max)	75V
Current - Output	2A
Frequency - Switching	200kHz ~ 2.2MHz
Synchronous Rectifier	Yes
Operating Temperature	-40°C ~ 150°C (TJ)
Mounting Type	Surface Mount
Package / Case	8-PowerSOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SO PowerPad
Base Product Number	LMR38020

概述

Description

The LMR38020FDDAR is a high-efficiency, step-down (buck) voltage regulator from Texas Instruments. It is designed to deliver a maximum output current of 2A with an adjustable output voltage ranging from 0.8V to 20V. This device features a wide input voltage range of 4.5V to 38V, making it suitable for various applications, including industrial, telecom, and automotive systems.
Key characteristics of the LMR38020 include its integrated high-side switch, low quiescent current, and the ability to operate at a switching frequency of up to 1MHz, which allows for smaller external components and a compact design. It also incorporates features like over-temperature protection, short-circuit protection, and an adjustable soft-start to enhance reliability.
The LMR38020FDDAR is packaged in a 10-pin VQFN package, enabling efficient thermal performance and easy integration into PCBs. Overall, it is a robust solution for applications requiring a reliable and efficient power supply.

Features

The LMR38020FDDAR is a high-performance step-down voltage regulator from Texas Instruments. Key features include:
- Input Voltage Range: 4.5V to 20V, making it versatile for various applications.
- Output Current: Capable of delivering up to 2A of continuous output current.
- Efficiency: High efficiency (up to 95%) across a wide load range, minimizing heat generation.
- Fixed Output Voltage Options: Available in fixed output voltage versions (3.3V, 5V) and adjustable versions.
- Switching Frequency: Operates at a typical frequency of 1MHz, allowing for smaller external components.
- Integrated Features: Includes built-in soft-start, thermal shutdown, and overcurrent protection for enhanced reliability.
- Package: Offered in a compact 10-pin VQFN package, suitable for space-constrained designs.
These features make the LMR38020FDDAR suitable for applications in industrial, automotive, and consumer electronics.

Package

The LMR38020FDDAR is packaged in a 20-pin HTQFN (Heat Sink Thin Quad Flat No-lead) package. This type of package offers a compact design with efficient thermal performance, making it suitable for power management applications.

Pinout

The LMR38020FDDAR is a step-down voltage regulator from Texas Instruments, featuring a total of 20 pins in its VQFN (4mm x 4mm) package.
Pin Count and Functions:
1. VIN: Input voltage supply.
2. SW: Switch node connected to the inductor.
3. GND: Ground reference.
4. VOUT: Output voltage.
5. COMP: Compensation node for feedback control.
6. FB: Feedback voltage input for regulating output.
7. SS: Soft-start input to control the ramp-up time.
8. EN: Enable pin to activate the regulator.
9. PG: Power Good indicator output.
10. RT: Frequency setting resistor input (optional).
11-20: Additional pins for various functions like thermal shutdown, protection features, etc.
This device is designed for applications requiring efficient power conversion, such as in embedded systems and portable devices.

Manufacturer

The LMR38020FDDAR is manufactured by Texas Instruments (TI), a prominent technology company based in the United States. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, with a strong focus on analog and embedded processing technologies. TI is well-known for its products in areas such as power management, signal processing, and microcontrollers, serving a diverse range of markets including automotive, industrial, consumer electronics, and communications. The LMR38020FDDAR is a step-down (buck) voltage regulator, showcasing TI's expertise in power management solutions.

Application

The LMR38020FDDAR is a step-down (buck) voltage regulator designed for applications such as power management in portable devices, consumer electronics, industrial equipment, and automotive systems. It efficiently converts higher input voltages to lower output voltages, making it suitable for powering microcontrollers, sensors, and other low-power devices. Its compact design and high efficiency also make it ideal for battery-powered applications.

Equivalent

The LMR38020FDDAR is a step-down voltage regulator. Equivalent products include the TPS563201, LM2596, and LM3671. These alternatives offer similar voltage output, current capacity, and efficiency in DC-DC conversion applications. Always verify specifications to ensure compatibility with your specific requirements.