AS3515-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics:
  • High efficiency
  • Low power consumption
  • Compact size
  • Wide input voltage range
• Package: QFN (Quad Flat No-leads)
• Essence: Power management IC for various electronic devices
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 1.2V to 3.3V
• Maximum Output Current: 500mA
• Operating Temperature Range: -40°C to +85°C
• Package Dimensions: 4mm x 4mm

Detailed Pin Configuration

The AS3515-T has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. VBAT: Battery supply voltage
2. GND: Ground
3. EN: Enable pin
4. VDD: Digital supply voltage
5. VOUT: Output voltage
6. PGND: Power ground
7. FB: Feedback pin
8. BST: Boost converter output
9. SW: Switching node
10. LX: Inductor connection
11. COMP: Compensation pin
12. SS: Soft-start pin
13. AGND: Analog ground
14. VIN: Input voltage
15. LDO: Low-dropout regulator output
16. LDOIN: LDO input
17. LDOEN: LDO enable
18. LDOGND: LDO ground
19. LDOFB: LDO feedback
20. LDOVDD: LDO supply voltage

Functional Features

• Integrated boost and low-dropout regulators
• Overcurrent protection
• Thermal shutdown protection
• Soft-start function for smooth power-up
• Adjustable output voltage through feedback pin
• Low quiescent current in standby mode

Advantages and Disadvantages

Advantages

• High efficiency power management
• Wide input voltage range allows compatibility with various power sources
• Compact size enables integration into small electronic devices
• Overcurrent and thermal protection ensure safe operation
• Soft-start function prevents voltage spikes during startup

Disadvantages

• Limited maximum output current of 500mA
• Operating temperature range may not be suitable for extreme environments

Working Principles

The AS3515-T is designed to efficiently manage power in electronic devices. It incorporates a boost converter and a low-dropout regulator (LDO) to provide stable and regulated voltages to different components. The boost converter steps up the input voltage to a higher level, while the LDO further regulates the output voltage to the desired level. The IC also includes various protection mechanisms to safeguard against overcurrent and excessive heat.

Detailed Application Field Plans

The AS3515-T finds applications in a wide range of electronic devices, including but not limited to:

1. Mobile phones
2. Tablets
3. Portable media players
4. Wearable devices
5. IoT (Internet of Things) devices
6. Handheld gaming consoles
7. Digital cameras
8. Portable medical devices

Detailed and Complete Alternative Models

1. AS3516-T: Similar to AS3515-T, but with higher maximum output current of 1A
2. AS3514-T: Similar to AS3515-T, but with lower input voltage range of 2.5V to 5.0V
3. AS3517-T: Similar to AS3515-T, but with additional features such as adjustable soft-start time and power good indicator

These alternative models offer similar functionality to the AS3515-T but may have different specifications or additional features to cater to specific requirements.

In conclusion, the AS3515-T is a power management IC that provides efficient and reliable voltage regulation for various electronic devices. Its compact size, wide input voltage range, and integrated protection mechanisms make it suitable for a diverse range of applications.