LM3526M-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: SOP-8 (Small Outline Package)

Essence: The LM3526M-H/NOPB is a voltage regulator IC designed to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The LM3526M-H/NOPB is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.5V to 7V
• Output Voltage Range: 1.25V to 5.5V
• Maximum Output Current: 1A
• Dropout Voltage: 300mV at 500mA
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM3526M-H/NOPB has the following pin configuration:

1. EN (Enable): Enable input pin.
2. GND (Ground): Ground reference pin.
3. FB (Feedback): Feedback input pin for setting the output voltage.
4. VOUT (Output Voltage): Regulated output voltage.
5. VIN (Input Voltage): Input voltage supply pin.
6. NC (No Connection): No connection pin.
7. NC (No Connection): No connection pin.
8. VREF (Reference Voltage): Reference voltage output pin.

Functional Features

• High Efficiency: The LM3526M-H/NOPB offers high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of 300mV at 500mA, the IC can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The feedback pin allows users to adjust the output voltage within the specified range.
• Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the circuit from excessive current flow.
• Thermal Shutdown Protection: In case of excessive temperature rise, the LM3526M-H/NOPB has built-in thermal shutdown protection to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency operation - Adjustable output voltage - Overcurrent and thermal protection - Wide operating temperature range

Disadvantages: - Limited maximum output current (1A)

Working Principles

The LM3526M-H/NOPB operates as a linear voltage regulator. It regulates the output voltage by comparing the feedback voltage (FB pin) with an internal reference voltage (VREF pin). By adjusting the resistance connected to the FB pin, the output voltage can be set within the specified range. The IC also monitors the input current and temperature to provide overcurrent and thermal protection.

Detailed Application Field Plans

The LM3526M-H/NOPB finds applications in various electronic devices that require a stable and regulated power supply. Some common application fields include: - Battery-powered devices - Portable audio players - Mobile phones - Digital cameras - Wireless communication systems

Detailed and Complete Alternative Models

• LM317: Adjustable voltage regulator with higher maximum output current (1.5A).
• LM1117: Fixed voltage regulator available in various output voltage options.
• LT1083: Adjustable voltage regulator with higher maximum output current (7.5A).

These alternative models offer similar functionality to the LM3526M-H/NOPB but may have different specifications and package types.

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