MP3399EY-LF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - High efficiency - Wide input voltage range - Multiple output channels - Compact size - Low power consumption

Package: QFN (Quad Flat No-leads)

Essence: MP3399EY-LF is a power management IC designed for efficient power conversion and distribution in various electronic devices.

Packaging/Quantity: The MP3399EY-LF is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 32V
• Output Voltage Range: 0.6V to 30V
• Number of Output Channels: 3
• Maximum Output Current: 3A per channel
• Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MP3399EY-LF has a total of 24 pins, each serving a specific function. Here is the detailed pin configuration:

1. VIN: Input voltage pin
2. EN: Enable pin
3. FB1: Feedback pin for Channel 1
4. SW1: Switching pin for Channel 1
5. GND: Ground pin
6. VCC: Supply voltage pin
7. PGND: Power ground pin
8. LX1: Inductor connection pin for Channel 1
9. FB2: Feedback pin for Channel 2
10. SW2: Switching pin for Channel 2
11. LX2: Inductor connection pin for Channel 2
12. FB3: Feedback pin for Channel 3
13. SW3: Switching pin for Channel 3
14. LX3: Inductor connection pin for Channel 3
15. VOUT1: Output voltage pin for Channel 1
16. VOUT2: Output voltage pin for Channel 2
17. VOUT3: Output voltage pin for Channel 3
18. PGND: Power ground pin
19. GND: Ground pin
20. VCC: Supply voltage pin
21. EN: Enable pin
22. VIN: Input voltage pin
23. NC: No connection pin
24. NC: No connection pin

Functional Features

• High efficiency power conversion
• Wide input voltage range allows compatibility with various power sources
• Multiple output channels for versatile power distribution
• Compact size enables integration into space-constrained designs
• Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power loss - Wide input voltage range provides flexibility in power source selection - Multiple output channels allow simultaneous power supply to different components - Compact size saves board space and facilitates miniaturization - Low power consumption contributes to longer battery life

Disadvantages: - Limited maximum output current per channel may not be suitable for high-power applications - Higher switching frequency may introduce electromagnetic interference (EMI) concerns

Working Principles

The MP3399EY-LF operates on the principle of pulse width modulation (PWM) to regulate the output voltages. It utilizes an internal control circuitry that adjusts the duty cycle of the switching signals based on the feedback received from the output channels. This feedback loop ensures stable and accurate output voltages despite variations in input voltage and load conditions.

Detailed Application Field Plans

The MP3399EY-LF is widely used in various electronic devices requiring efficient power management. Some of its application fields include:

1. LED Lighting: The IC can drive multiple LED strings with different voltage requirements, making it suitable for LED lighting applications such as backlighting, automotive lighting, and general illumination.

2. Portable Devices: The compact size and low power consumption of the MP3399EY-LF make it ideal for portable devices like smartphones, tablets, and wearable electronics, where space and battery life are critical factors.

3. Industrial Equipment: The IC can be used in industrial equipment that requires efficient power conversion and distribution, such as motor control systems, robotics, and automation devices.

4. Automotive Electronics: With its wide input voltage range and multiple output channels, the MP3399EY-LF finds applications in automotive electronics, including infotainment systems, dashboard displays, and interior lighting.

Detailed and Complete Alternative Models

1. MP3399EY-LF+: This variant offers enhanced thermal performance and higher maximum output current per channel, making it suitable for high-power applications.

2. MP3399EY-LF-TR: This version comes in tape and reel packaging, making it convenient for automated assembly processes.

3. MP3399EY-LF-G: This model features an extended operating temperature range (-40°C