LM25085AMY/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: SOIC-8

Essence: The LM25085AMY/NOPB is a voltage regulator IC designed for efficient power conversion in various applications.

Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 42V
• Output Voltage Range: 0.8V to 37V
• Maximum Output Current: 3A
• Quiescent Current: 100µA
• Switching Frequency: 300kHz to 2.2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LM25085AMY/NOPB has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin for turning the device on/off
5. SS/TR: Soft-start/Tracking pin for controlling the startup behavior
6. PG: Power Good pin indicating output voltage within regulation limits
7. SW: Switch node pin for connecting the external inductor
8. VOUT: Output voltage pin

Functional Features

• Wide input voltage range allows for versatile applications.
• Adjustable output voltage provides flexibility in different scenarios.
• High efficiency ensures minimal power loss during conversion.
• Overcurrent protection safeguards against excessive current flow.
• Thermal shutdown protection prevents overheating of the IC.

Advantages

• Compact SOIC-8 package enables space-saving designs.
• Wide input voltage range makes it suitable for various power sources.
• High efficiency reduces energy consumption and heat dissipation.
• Overcurrent and thermal protection enhance system reliability.

Disadvantages

• Limited maximum output current of 3A may not be sufficient for high-power applications.
• The SOIC-8 package may require additional cooling measures in certain situations.

Working Principles

The LM25085AMY/NOPB operates as a synchronous buck voltage regulator. It uses a pulse-width modulation (PWM) control scheme to regulate the output voltage. The input voltage is stepped down by controlling the switching of an external inductor and a power MOSFET. The feedback mechanism adjusts the duty cycle of the switching signal to maintain the desired output voltage.

Detailed Application Field Plans

The LM25085AMY/NOPB can be used in various applications, including but not limited to: - Automotive electronics - Industrial automation - Telecommunications equipment - Power supplies - Battery charging systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM25085AMY/NOPB are: - LM2596S-ADJ - LM2576T-ADJ - LM317T - LT1084CP-ADJ - TPS5430DDAR

These alternatives provide different package options, output current capabilities, and additional features to suit specific application requirements.

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