aat3689 Datasheet - Analogictech
The AAT3689 is a highly integrated, high-frequency, synchronous, step-down converter that delivers high efficiency and high output current.
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📝 Component Overview
The AAT3689 is a highly integrated, high-frequency, synchronous, step-down converter that delivers high efficiency and high output current. It operates from an input voltage range of 2.7V to 5.5V and can supply up to 2A of output current. The device features a low dropout voltage, high efficiency, and a small footprint, making it suitable for a wide range of applications, including portable electronics, consumer products, and industrial equipment.
Key Features and Benefits
- High efficiency, high frequency, synchronous step-down converter
- Input voltage range: 2.7V to 5.5V
- Output current: up to 2A
- Low dropout voltage
- Small footprint
- Highly integrated
- Suitable for portable electronics, consumer products, and industrial equipment
Typical Applications
- Portable electronics
- Consumer products
- Industrial equipment
- Power supplies
- Battery-powered devices
- Wireless devices
- Audio equipment
- Medical devices
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 5.5V |
| Operating Temperature | -40°C to 85°C |
| Storage Temperature | -55°C to 125°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Efficiency | V_IN = 3.3V, V_OUT = 1.8V, I_OUT = 1A | 85% | 90% | 92% | % |
| Output Voltage Accuracy | V_IN = 3.3V, V_OUT = 1.8V, I_OUT = 1A | -2% | 0% | 2% | % |
Package Information
- TDFN33-12: 12-pin, 3x3mm, thermally enhanced package
Pin Configuration
- Pin 1: VIN - Input voltage pin
- Pin 2: GND - Ground pin
🔧 Application Guidelines
Design Considerations
The AAT3689 is a high-frequency, synchronous, step-down converter that requires careful design consideration to ensure optimal performance. The device should be mounted on a thermally conductive PCB with adequate heat sinking to maintain a low junction temperature.
Installation Guidelines
The AAT3689 should be handled with care to avoid damage to the device or the PCB. The device should be soldered to the PCB using a reflow soldering process, and the PCB should be designed to minimize thermal resistance and ensure good heat transfer.
Operational Notes
The AAT3689 is a highly integrated device that requires careful attention to operational parameters to ensure reliable operation. The device should be operated within the specified input voltage range and output current range, and the output voltage should be set to the desired value using the feedback resistors.