LM3526MX-H/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: SOIC-8

Essence: The LM3526MX-H/NOPB is a voltage regulator IC that provides a regulated output voltage from an unregulated input voltage. It is commonly used in various electronic devices to ensure stable and reliable power supply.

Packaging/Quantity: The LM3526MX-H/NOPB is available in a standard SOIC-8 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 14V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3526MX-H/NOPB has the following pin configuration:

___________ | | IN |1 8| OUT EN |2 7| GND FB |3 6| NC NC |4 5| NC |___________|

1. IN: Input voltage pin.
2. EN: Enable pin for turning the regulator on/off.
3. FB: Feedback pin for adjusting the output voltage.
4. NC: No connection pins.

Functional Features

• High Efficiency: The LM3526MX-H/NOPB offers high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: It has a low dropout voltage, ensuring stable output even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted within a specified range using an external resistor divider network.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
• Thermal Shutdown Protection: It includes thermal shutdown protection, preventing damage due to excessive heat.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Low dropout voltage ensures stable output even with varying input voltages. - Adjustable output voltage allows flexibility in different applications. - Overcurrent protection prevents damage to the circuit. - Thermal shutdown protection enhances reliability.

Disadvantages: - Limited maximum output current of 1A may not be suitable for high-power applications. - The SOIC-8 package may require surface mount soldering techniques.

Working Principles

The LM3526MX-H/NOPB operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB pin) with a reference voltage. The error amplifier adjusts the pass transistor to maintain the desired output voltage. The enable pin (EN) controls the on/off state of the regulator.

Detailed Application Field Plans

The LM3526MX-H/NOPB finds applications in various electronic devices, including but not limited to: - Battery-powered devices - Portable audio players - Mobile phones - Wireless communication systems - Embedded systems - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM3526MX-H/NOPB are: - LM317: Adjustable voltage regulator with higher output current capability. - LM1117: Fixed voltage regulator with low dropout voltage. - LT1083: High-current adjustable voltage regulator with low dropout voltage.

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

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