LM25085SD/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: SD (PowerPAD™ SOIC)

Essence: The LM25085SD/NOPB is a voltage regulator IC designed to provide a regulated output voltage from a wide range of input voltages. It offers high efficiency and various protection features, making it suitable for a wide range of applications.

Packaging/Quantity: The LM25085SD/NOPB is available in a PowerPAD™ SOIC package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 42V
• Output Voltage Range: 0.8V to 37V
• Maximum Output Current: 3A
• Quiescent Current: 60µA
• Switching Frequency: 100kHz to 2MHz
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LM25085SD/NOPB has the following pin configuration:

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

Functional Features

• Wide input voltage range allows operation in various power supply systems.
• Adjustable output voltage provides flexibility for different application requirements.
• High efficiency minimizes power dissipation and improves overall system performance.
• Overcurrent protection safeguards the regulator and connected components from excessive current.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages

• Wide input voltage range enables compatibility with different power sources.
• Adjustable output voltage allows customization for specific applications.
• High efficiency reduces power consumption and heat generation.
• Protection features enhance reliability and protect against potential failures.

Disadvantages

• The LM25085SD/NOPB may require additional external components for proper operation.
• The PowerPAD™ SOIC package may not be suitable for all PCB layouts.
• Limited maximum output current may restrict usage in high-power applications.

Working Principles

The LM25085SD/NOPB operates as a buck (step-down) voltage regulator. It uses a switching mechanism to efficiently convert the input voltage to the desired output voltage. The internal control circuitry adjusts the duty cycle of the switching signal to maintain a stable output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The LM25085SD/NOPB can be used in various applications, including but not limited to: - Automotive electronics - Industrial equipment - Telecommunications systems - Power supplies - Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM25085SD/NOPB are: - LM2596S-ADJ - LM2576T-ADJ - LM317T - TPS5430DDAR - LT1084CT

These alternative models provide voltage regulation capabilities and are widely used in different applications.

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