LP3906SQ-FXPI/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Power Consumption
• Package: 20-WQFN (4x4)
• Essence: Voltage Regulator and Battery Charger
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.8V to 3.3V
• Maximum Output Current: 1.5A
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LP3906SQ-FXPI/NOPB has a 20-pin WQFN package with the following pin configuration:

1. EN (Enable)
2. PG (Power Good)
3. VBUS (USB Supply Voltage)
4. VBAT (Battery Supply Voltage)
5. VOUT (Output Voltage)
6. GND (Ground)
7. LDOIN (LDO Input Voltage)
8. LDOOUT (LDO Output Voltage)
9. LDOGND (LDO Ground)
10. LDOEN (LDO Enable)
11. LDOFB (LDO Feedback)
12. LDOCAP (LDO Capacitor)
13. LDOBST (LDO Boost Voltage)
14. LDOBOOST (LDO Boost Output Voltage)
15. LDOBGND (LDO Boost Ground)
16. LDOBEN (LDO Boost Enable)
17. LDOBCAP (LDO Boost Capacitor)
18. LDOBSTBY (LDO Boost Standby)
19. LDOBSTBYB (LDO Boost Standby Bypass)
20. VREF (Reference Voltage)

Functional Features

• Integrated voltage regulator and battery charger
• High efficiency power management solution
• Low power consumption in standby mode
• Overvoltage and overcurrent protection
• Thermal shutdown protection
• Power good indicator for system monitoring

Advantages and Disadvantages

Advantages: - Compact package size - Wide input voltage range - High output current capability - Efficient power conversion - Comprehensive protection features

Disadvantages: - Limited output voltage range - Requires external components for operation

Working Principles

The LP3906SQ-FXPI/NOPB is a voltage regulator and battery charger IC designed for power management applications. It accepts an input voltage ranging from 2.7V to 5.5V and provides a regulated output voltage between 0.8V and 3.3V. The device incorporates a high-efficiency switching regulator and a linear regulator, offering efficient power conversion with low power consumption.

The IC also includes a battery charger circuit that supports various battery chemistries. It provides overvoltage and overcurrent protection, ensuring safe charging of the battery. Additionally, the LP3906SQ-FXPI/NOPB features thermal shutdown protection to prevent overheating.

Detailed Application Field Plans

The LP3906SQ-FXPI/NOPB is widely used in portable electronic devices such as smartphones, tablets, portable media players, and handheld gaming consoles. It is suitable for applications where efficient power management and battery charging are essential.

Some specific application field plans include: 1. Mobile phones: Power management and battery charging for smartphones. 2. Tablets: Efficient power supply and battery charging for tablet devices. 3. Portable media players: Power management and battery charging for music and video players. 4. Handheld gaming consoles: Regulated power supply and battery charging for gaming devices.

Detailed and Complete Alternative Models

1. LP3907SQ-FXPI/NOPB: Similar to LP3906SQ-FXPI/NOPB with additional features.
2. LP3910SQ-FXPI/NOPB: Higher output current capability compared to LP3906SQ-FXPI/NOPB.
3. LP3920SQ-FXPI/NOPB: Integrated power management IC with multiple voltage regulators.

These alternative models offer similar functionality and can be considered as alternatives to the LP3906SQ-FXPI/NOPB based on specific requirements.

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