aat1151 Datasheet - Analogictech
The AAT1151 is a high efficiency, step-down DC/DC converter designed for portable applications where high efficiency and small size are critical.
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📝 Component Overview
The AAT1151 is a high efficiency, step-down DC/DC converter designed for portable applications where high efficiency and small size are critical. It operates at a fixed frequency of 850kHz and can deliver up to 700mA of output current. The device features a low dropout voltage, allowing it to maintain high efficiency even at low input voltages.
Key Features and Benefits
- High efficiency step-down DC/DC converter
- Fixed frequency of 850kHz
- Delivers up to 700mA of output current
- Low dropout voltage for high efficiency at low input voltages
- Small package size for portable applications
- Adjustable output voltage
Typical Applications
- Portable electronics
- Cellular phones
- PDAs
- MP3 players
- Notebook computers
- Cameras
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 5.5V |
| Operating Temperature | -40°C to 85°C |
| Storage Temperature | -40°C to 150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Efficiency | VIN = 3.6V, VOUT = 3.3V, IOUT = 500mA | 85% | 90% | 92% | % |
| Output Voltage Accuracy | VIN = 3.6V, IOUT = 500mA | -2% | 0% | 2% | % |
Package Information
- MSOP-8: 8-lead MSOP package
Pin Configuration
- Pin 1: VIN - Input voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
The AAT1151 is designed for high efficiency and small size, making it ideal for portable applications. The device features a fixed frequency of 850kHz, which allows for the use of small external components.
Installation Guidelines
The AAT1151 should be mounted on a printed circuit board with adequate thermal dissipation. The device is sensitive to moisture, so it should be stored in a dry environment.
Operational Notes
The AAT1151 is a high efficiency device, but it may still generate heat during operation. The device should be operated within the recommended temperature range to ensure reliable operation.