LM2623AMMX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Boost Converter

Characteristics: - High efficiency voltage boost converter - Low input voltage range: 1.8V to 14V - Output voltage range: up to 14V - Adjustable output voltage - Small package size: MMX (4mm x 4mm) - RoHS compliant

Package: Miniature Leadless Package (MMX)

Essence: The LM2623AMMX/NOPB is a high-efficiency voltage boost converter IC designed for various applications where a higher output voltage is required from a low input voltage source.

Packaging/Quantity: The LM2623AMMX/NOPB is available in a miniature leadless package (MMX) and is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 1.8V to 14V
• Output Voltage Range: Up to 14V
• Switching Frequency: 1.6MHz
• Maximum Output Current: 600mA
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM2623AMMX/NOPB has the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node pin
3. FB: Feedback pin
4. GND: Ground pin
5. EN: Enable pin
6. VOUT: Output voltage pin

Functional Features

• High efficiency voltage boost conversion
• Adjustable output voltage through external resistors
• Internal soft-start function for controlled startup
• Overcurrent protection
• Thermal shutdown protection
• Low quiescent current

Advantages

• High efficiency conversion leads to reduced power consumption
• Wide input voltage range allows for versatile applications
• Adjustable output voltage provides flexibility
• Small package size saves board space
• Internal protection features enhance reliability

Disadvantages

• Limited maximum output current (600mA)
• Higher switching frequency may require additional noise filtering components

Working Principles

The LM2623AMMX/NOPB is a voltage boost converter that utilizes a switching regulator topology. It operates by rapidly switching an internal power switch to control the energy transfer from the input voltage source to the output load. This switching action, combined with inductors and capacitors, allows for efficient voltage boosting.

Detailed Application Field Plans

The LM2623AMMX/NOPB can be used in various applications, including but not limited to: 1. Battery-powered devices requiring higher voltage levels 2. Portable electronic devices 3. LED backlighting systems 4. LCD bias supplies 5. Power supply modules

Detailed and Complete Alternative Models

1. LM2621: Similar voltage boost converter IC with lower maximum output current (300mA)
2. LM2624: Voltage boost converter IC with adjustable output voltage and higher maximum output current (800mA)
3. LM2625: Voltage boost converter IC with fixed output voltage and higher maximum output current (1A)
4. LM2626: Voltage boost converter IC with adjustable output voltage and higher maximum output current (1.5A)

These alternative models provide options with varying specifications to suit different application requirements.

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