aat3172 Datasheet - Analogictech
The AAT3172 is a high-performance, 100mA, 5V output, tri-mode charge pump designed for white LED applications.
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📝 Component Overview
The AAT3172 is a high-performance, 100mA, 5V output, tri-mode charge pump designed for white LED applications. It provides a high efficiency, low noise, and compact solution for driving multiple LEDs in series. The device features automatic switching between 1x, 2x, and 3x modes to maximize efficiency. The AAT3172 also includes built-in overvoltage protection, soft-start, and thermal protection to ensure reliable operation.
Key Features and Benefits
- 100mA output current
- 5V output voltage
- Tri-mode charge pump (1x, 2x, 3x)
- High efficiency
- Low noise
- Compact TDFN33-12 package
- Built-in overvoltage protection
- Soft-start and thermal protection
Typical Applications
- White LED drivers
- Camera flash
- LED backlighting
- Portable electronics
- Notebook computers
- PDAs and smartphones
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 6V |
| Operating Temperature | -40°C to 85°C |
| Storage Temperature | -65°C to 150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | IOUT = 100mA | 4.5V | 5V | 5.5V | V |
| Efficiency | IOUT = 100mA | 80% | 85% | 90% | % |
Package Information
- TDFN33-12: Compact, thermally-enhanced package
Pin Configuration
- Pin 1: VIN - Input voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
The AAT3172 is designed for high-performance, low-noise applications. To ensure reliable operation, it is recommended to use a 10uF capacitor at the input and a 4.7uF capacitor at the output.
Installation Guidelines
The device should be mounted on a PCB with a thermal pad connected to a ground plane for optimal thermal performance.
Operational Notes
The AAT3172 has built-in overvoltage protection and thermal protection. However, it is still important to follow proper design and installation guidelines to ensure reliable operation.