LM2758TL/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency step-up DC-DC converter - Compact and lightweight design - Wide input voltage range - Low quiescent current - Adjustable output voltage - Over-temperature protection - Under-voltage lockout

Package: Thin SOT-23-5 package

Essence: The LM2758TL/NOPB is a power management IC that functions as a step-up DC-DC converter. It is designed to efficiently convert a low input voltage to a higher output voltage, making it suitable for various applications where power conversion is required.

Packaging/Quantity: The LM2758TL/NOPB is available in a thin SOT-23-5 package. It is typically sold in reels of 3000 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 2.7V to 5.5V
• Maximum Output Current: 100mA
• Quiescent Current: 40µA (typical)
• Switching Frequency: 1.6MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM2758TL/NOPB has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. SW: Switching node pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the device on/off

Functional Features

• High Efficiency: The LM2758TL/NOPB utilizes a high-efficiency step-up DC-DC converter, ensuring minimal power loss during the conversion process.
• Adjustable Output Voltage: The output voltage can be adjusted within the input voltage range, providing flexibility for different application requirements.
• Over-Temperature Protection: The IC incorporates over-temperature protection to prevent damage due to excessive heat.
• Under-Voltage Lockout: The under-voltage lockout feature ensures that the device shuts down when the input voltage falls below a certain threshold, protecting the circuit from operating at insufficient voltages.

Advantages and Disadvantages

Advantages: - High efficiency conversion - Compact and lightweight design - Wide input voltage range - Adjustable output voltage - Over-temperature protection - Under-voltage lockout

Disadvantages: - Limited maximum output current (100mA)

Working Principles

The LM2758TL/NOPB operates as a step-up DC-DC converter. It uses an internal switch to control the energy transfer from the input to the output. When the switch is closed, energy is stored in an inductor. When the switch opens, the stored energy is released to the output through a diode. This process allows the LM2758TL/NOPB to efficiently boost the input voltage to a higher output voltage.

Detailed Application Field Plans

The LM2758TL/NOPB is commonly used in various battery-powered applications where efficient power conversion is required. Some of the typical application fields include: - Portable electronic devices - Battery-powered IoT devices - Wireless communication systems - Handheld medical devices - Portable audio/video players

Detailed and Complete Alternative Models

• LM2758TLX/NOPB: Similar to LM2758TL/NOPB but with extended temperature range (-40°C to +125°C)
• LM2758TLX/NOPB-ND: Same as LM2758TLX/NOPB, available in tape and reel packaging

These alternative models offer similar functionality and characteristics to the LM2758TL/NOPB, providing options for different temperature requirements and packaging preferences.

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