LMR23625CDDAR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Adjustable output voltage - Current limit protection - Thermal shutdown protection

Package: DDA (8-Pin SOIC)

Essence: The LMR23625CDDAR is a voltage regulator IC designed to provide a stable and regulated output voltage from a wide range of input voltages.

Packaging/Quantity: The LMR23625CDDAR is available in a 8-pin SOIC package. It is typically sold in reels containing 2500 units.

Specifications

• Input Voltage Range: 4.5V to 36V
• Output Voltage Range: 1.2V to 20V
• Maximum Output Current: 1.5A
• Dropout Voltage: 340mV at 1A
• Line Regulation: ±0.2%
• Load Regulation: ±0.4%
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LMR23625CDDAR has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin (active high)
4. FB: Feedback pin for output voltage regulation
5. SS/TR: Soft-start/Tracking pin
6. PG: Power Good pin
7. SW: Switching node pin
8. VOUT: Output voltage pin

Functional Features

• High Efficiency: The LMR23625CDDAR utilizes a synchronous buck topology, resulting in high efficiency over a wide load range.
• Low Dropout Voltage: The device features low dropout voltage, ensuring stable output voltage even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can operate with input voltages ranging from 4.5V to 36V, making it suitable for a variety of applications.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, allowing flexibility in meeting specific requirements.
• Current Limit Protection: The LMR23625CDDAR incorporates current limit protection to prevent damage due to excessive load currents.
• Thermal Shutdown Protection: The device includes thermal shutdown protection, which disables the regulator if the temperature exceeds safe limits.

Advantages and Disadvantages

Advantages: - High efficiency operation - Wide input voltage range - Adjustable output voltage - Current limit and thermal shutdown protection

Disadvantages: - Limited maximum output current (1.5A)

Working Principles

The LMR23625CDDAR operates as a synchronous buck converter. It uses a high-side MOSFET and a low-side synchronous rectifier to regulate the output voltage. The internal control circuitry adjusts the duty cycle of the switching waveform to maintain the desired output voltage. The device employs a feedback mechanism to continuously monitor the output voltage and make necessary adjustments.

Detailed Application Field Plans

The LMR23625CDDAR is well-suited for various applications, including but not limited to: - Industrial power supplies - Automotive electronics - Battery-powered systems - Distributed power systems - Telecom infrastructure

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LMR23625CDDAR include: - TPS54332DDAR - LM2678SX-ADJ/NOPB - LT1763CS8-3.3#PBF - ADP2302ARDZ-R7

These alternatives can be considered based on specific requirements and design constraints.

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