LMR51430XFDDCR

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LMR51430XFDDCR

IC REG BUCK ADJ 3A SOT23-6

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사양

Series SIMPLE SWITCHER®
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 36V
Voltage - Output (Min/Fixed) 0.6V
Voltage - Output (Max) 34.2V
Current - Output 3A
Frequency - Switching 500kHz
Synchronous Rectifier Yes
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case SOT-23-6 Thin, TSOT-23-6
Supplier Device Package SOT-23-THIN
Base Product Number LMR51430

개요

Description

The LMR51430XFDDCR is a high-performance, step-down (buck) voltage regulator designed to efficiently convert higher input voltages to lower output voltages. It operates with a wide input voltage range of 4.5V to 36V and provides an adjustable output voltage down to 0.8V. This regulator features a fast transient response, making it suitable for powering various electronic devices, including microcontrollers and other digital circuits.
Key features include an integrated high-side power switch, a PWM control scheme for improved efficiency, and a compact package size (typically available in a VQFN or similar format) suitable for space-constrained applications. The device offers protection features like overcurrent and thermal shutdown, ensuring reliable operation under varying conditions. It is well-suited for automotive, industrial, and consumer applications where efficiency and compactness are critical.
For optimal performance, users should refer to the manufacturer's datasheet for detailed specifications, application circuits, and design considerations.

Features

The LMR51430XFDDCR is a high-performance DC-DC step-down (buck) regulator from Texas Instruments. Key features include:
1. Input Voltage Range: Supports a wide input voltage range from 4.5V to 60V, making it suitable for various applications.
2. Output Current: Capable of delivering up to 3A of continuous output current.
3. Efficiency: High efficiency, reaching up to 95%, which helps in reducing thermal dissipation.
4. Switching Frequency: Operates at a fixed frequency of 500 kHz, allowing for smaller external components.
5. Voltage Regulation: Provides a precise output voltage with excellent line and load regulation.
6. Thermal Protection: Includes built-in thermal shutdown to protect against overheating.
7. Soft Start: Features a soft-start function to minimize inrush current during startup.
8. Compact Package: Housed in a small 16-pin HTQFP package, suitable for space-constrained applications.
These features make the LMR51430XFDDCR versatile for powering various electronic devices such as industrial equipment, automotive, and consumer electronics.

Package

The LMR51430XFDDCR is packaged in a 16-pin HTQFN (Heat Sink Thin Quad Flat No-lead) format. This package type is designed for improved thermal performance and efficiency in power management applications.

Pinout

The LMR51430XFDDCR is a high-frequency, step-down voltage regulator from Texas Instruments. It features a pin count of 20.
Key functions of the pins include:
1. VIN (Power Input): Supply voltage input.
2. SW (Switch Node): Connection to the switching element.
3. GND (Ground): Common reference point.
4. VOUT (Output Voltage): Regulated output voltage.
5. COMP (Compensation): For stability and transient response.
6. FB (Feedback): Feedback input for voltage regulation.
7. SS/TR (Soft Start/Tracking): Controls the start-up time and voltage tracking.
8. EN (Enable): Enables or disables the regulator.
9. PGND (Power Ground): Ground for switching components.
10. SYNC (Synchronization): Synchronizes the switching frequency with an external clock.
11. MODE (Mode Selection): Selects between PWM and PFM modes.
12. NFAULT (Fault Indicator): Indicates fault conditions.
The versatile configuration allows for high-efficiency power management in various applications.

Manufacturer

The LMR51430XFDDCR is manufactured by Texas Instruments (TI), an American technology company. Texas Instruments is a global leader in the design and manufacturing of semiconductors and various integrated circuits. The company is well-known for its analog and embedded processing products, which serve a wide range of applications, including industrial, automotive, communications, and consumer electronics. Founded in 1930, Texas Instruments has a strong reputation for innovation and quality in the semiconductor industry and provides solutions that enable a smarter, more connected world.

Application

The LMR51430XFDDCR is a high-efficiency step-down voltage regulator primarily used in applications such as power supply for microcontrollers, FPGAs, and DSPs. It is suitable for battery-powered devices, industrial automation, automotive electronics, and consumer electronics. Its features make it ideal for powering portable devices, telecommunications equipment, and IoT applications, offering low quiescent current and high efficiency across a wide input voltage range.

Equivalent

The LMR51430XFDDCR is a low-power step-down regulator. Equivalent products include:
1. TPS56427 (Texas Instruments)
2. LM2596 (Texas Instruments)
3. LM2675 (Texas Instruments)
4. MICREL MIC2211
5. LT1763 (Analog Devices)
Always verify specifications to ensure compatibility with your application requirements.

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EMS는: 배송 비용은 $30-$50 (0.5kg)에서 7-15 영업일의 추정적 배달 시간을 제공합니다.

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