LM20123MH/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: PowerPAD HTSSOP

Essence: The LM20123MH/NOPB is a high-performance voltage regulator IC designed for various applications requiring stable and regulated power supply.

Packaging/Quantity: The LM20123MH/NOPB is available in a PowerPAD HTSSOP package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage Range: 0.8V to 6V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LM20123MH/NOPB has the following pin configuration:

1. VIN: Input voltage pin
2. EN: Enable pin (active high)
3. FB: Feedback pin for output voltage regulation
4. GND: Ground pin
5. PG: Power good indicator pin
6. SW: Switching node pin
7. VOUT: Output voltage pin

Functional Features

• High Efficiency: The LM20123MH/NOPB utilizes a synchronous buck converter architecture, resulting in high efficiency power conversion.
• Wide Input Voltage Range: The IC can accept input voltages ranging from 4.5V to 20V, making it suitable for a wide range of applications.
• Low Dropout Voltage: The dropout voltage of the regulator is only 300mV at 1A output current, minimizing power dissipation.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.8V to 6V using external resistors.
• Overcurrent Protection: The IC incorporates overcurrent protection to safeguard against excessive load currents.
• Thermal Shutdown Protection: In case of excessive temperature, the LM20123MH/NOPB features thermal shutdown protection to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Wide input voltage range - Adjustable output voltage - Overcurrent and thermal protection

Disadvantages: - Limited maximum output current (1A)

Working Principles

The LM20123MH/NOPB operates as a synchronous buck converter. It uses a high-side MOSFET and a low-side synchronous rectifier to efficiently step down the input voltage to the desired output voltage. The feedback mechanism ensures that the output voltage remains regulated within the specified range.

Detailed Application Field Plans

The LM20123MH/NOPB is suitable for various applications, including but not limited to: - Power supplies for industrial equipment - Battery-powered devices - Automotive electronics - Telecommunications equipment - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to the LM20123MH/NOPB include: - LM2576-ADJ - LM2596S-ADJ - LM317T - LT1084CP-ADJ - TPS5430DDAR

These alternatives offer similar functionality and can be considered based on specific application requirements.

Word count: 346 words