LM27965SQ-MX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC for Display Applications

Characteristics: - High efficiency - Low quiescent current - Wide input voltage range - Adjustable output voltage - Overvoltage and overcurrent protection

Package: 16-pin WQFN package

Essence: The LM27965SQ-MX/NOPB is a power management IC specifically designed for display applications. It provides efficient power conversion and control for various display modules.

Packaging/Quantity: The LM27965SQ-MX/NOPB is available in a 16-pin WQFN package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.3V
• Quiescent Current: 30µA (typical)
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM27965SQ-MX/NOPB has the following pin configuration:

1. VIN: Input voltage
2. EN: Enable pin
3. FB: Feedback pin
4. GND: Ground
5. SW: Switching node
6. LX: Inductor connection
7. VOUT: Output voltage
8. PGND: Power ground
9. VCC: Supply voltage
10. BST: Bootstrap capacitor connection
11. SS: Soft-start capacitor connection
12. COMP: Compensation pin
13. AGND: Analog ground
14. UVLO: Undervoltage lockout
15. OVP: Overvoltage protection
16. OCSET: Overcurrent protection

Functional Features

• High efficiency power conversion
• Adjustable output voltage
• Overvoltage and overcurrent protection
• Soft-start for smooth power-up
• Undervoltage lockout for reliable operation

Advantages

• High efficiency results in reduced power consumption
• Wide input voltage range allows compatibility with various power sources
• Adjustable output voltage provides flexibility for different display modules
• Overvoltage and overcurrent protection ensure the safety of the system
• Soft-start feature prevents excessive inrush current during startup
• Undervoltage lockout enhances reliability by preventing operation below specified voltage levels

Disadvantages

• Limited to display applications, not suitable for other power management needs
• Requires additional external components for proper operation
• Relatively high cost compared to generic power management ICs

Working Principles

The LM27965SQ-MX/NOPB operates as a buck converter, converting the input voltage to a lower regulated output voltage. It uses a pulse-width modulation (PWM) control scheme to regulate the output voltage based on the feedback signal. The integrated circuit includes various protection features such as overvoltage and overcurrent protection to safeguard the display module.

Application Field Plans

The LM27965SQ-MX/NOPB is primarily used in display applications, including but not limited to: - LCD monitors - LED TVs - Automotive infotainment systems - Portable devices with displays (e.g., smartphones, tablets)

Alternative Models

1. LM2776SQ-NOPB: Similar power management IC with adjustable output voltage and overvoltage protection.
2. LM2733XMF/NOPB: Buck converter IC with fixed output voltage and overcurrent protection.
3. LM27402SQ/NOPB: Power management IC with adjustable output voltage and integrated power switches.

These alternative models offer similar functionality and can be considered as alternatives to the LM27965SQ-MX/NOPB based on specific application requirements.

Word count: 511 words