LMR51450SDRRR

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LMR51450SDRRR

IC REG BUCK ADJ 5A 12WSON

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Spécifications

Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4V
Voltage - Input (Max) 36V
Voltage - Output (Min/Fixed) 0.8V
Voltage - Output (Max) 28V
Current - Output 5A
Frequency - Switching 200kHz ~ 1.1MHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case 12-WFDFN Exposed Pad
Supplier Device Package 12-WSON (3x3)
Base Product Number LMR51450

Vue d'ensemble

Description

The LMR51450SDRRR is a high-performance, step-down (buck) voltage regulator from Texas Instruments designed for efficient power management in various applications. It features a wide input voltage range, typically from 4.5V to 60V, and can deliver up to 5A of output current. The device utilizes a pulse-width modulation (PWM) control scheme, providing excellent transient response and low output ripple, making it suitable for systems requiring stringent power supply stability.
Key features include an adjustable output voltage down to 0.8V, integrated power switches for reduced external component count, and thermal shutdown for protection against overheating. The LMR51450SDRRR is ideal for use in industrial, automotive, and consumer electronics applications where efficiency and reliability are critical. Its compact package and extensive functionality facilitate easy integration into power supply designs.

Features

The LMR51450SDRRR is a high-efficiency, step-down voltage regulator from Texas Instruments. Key features include:
1. Input Voltage Range: Operates from 4.5V to 60V, making it suitable for a variety of applications.
2. Output Current: Capable of delivering up to 5A output current, supporting high load demands.
3. Output Voltage: Adjustable output voltage from 0.8V to 15V, providing flexibility for different applications.
4. Efficiency: Offers high efficiency (up to 95%), reducing thermal dissipation and improving overall performance.
5. Switching Frequency: Operates at a fixed frequency of 340 kHz, which helps in optimizing component selection.
6. Integrated Components: Includes internal compensation and a power MOSFET, simplifying design and reducing board space.
7. Thermal Protection: Features thermal shutdown and overcurrent protection for enhanced reliability.
8. Package: Available in a compact HTQFP-32 package, facilitating easier integration into designs.
These attributes make the LMR51450SDRRR ideal for industrial, automotive, and consumer electronics applications requiring efficient DC-DC conversion.

Package

The LMR51450SDRRR is packaged in a 16-pin HTQFN (Heat Sink Thin Quad Flat No-lead) package. This type of package is designed for efficient thermal performance and compact layout in power management applications.

Pinout

The LMR51450SDRRR is a high-performance step-down voltage regulator from Texas Instruments. It comes in a 16-pin HTQFN package.
Pin Count: 16 pins
Key Functions:
1. VIN: Input voltage supply.
2. GND: Ground connection.
3. SW: Switch node for connection to the inductor.
4. VOUT: Output voltage.
5. COMP: Compensation node for stability.
6. CSN/ CSP: Current sense inputs for overcurrent protection.
7. RTH: Thermal sensing.
8. SS: Soft-start control.
9. MODE: Mode selection for operation (PWM/PSM).
10. EN: Enable pin to turn the device on/off.
11. SYNC: Synchronization input for multiple devices.
12. FB: Feedback for output voltage regulation.
The LMR51450 features high efficiency, wide input voltage range, and adjustable output voltage, making it suitable for various power applications.

Manufacturer

The LMR51450SDRRR is manufactured by Texas Instruments (TI), a prominent American technology company. Founded in 1930, Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits. The company is well-known for its contributions to analog, digital signal processing, and embedded processing technologies. It serves a wide range of industries, including automotive, industrial, communications, and consumer electronics. Texas Instruments is recognized for its innovation in the semiconductor field and is a leading provider of power management solutions, processors, and wireless technologies.

Application

The LMR51450SDRRR is a high-efficiency DC-DC step-down voltage regulator. Its application areas include powering processors, FPGAs, and microcontrollers in consumer electronics, telecommunications, and industrial equipment. It is suitable for battery-powered devices due to its low quiescent current and can be used in automotive applications for power management and voltage regulation. Additionally, it is ideal for point-of-load (POL) applications where compact size and high efficiency are essential.

Equivalent

The LMR51450SDRRR is a step-down voltage regulator. Equivalent products include the LM2596, LM2675, and TPS563201. These options provide similar voltage output and current handling capabilities. Always check specific datasheets for detailed specifications and compatibility to ensure they meet your application requirements.

Expédition

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FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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