aat1147 Datasheet - Analogdevices
The AAT1147 is a step-down DC/DC converter designed for portable applications. It operates from an input voltage range of 2.5V to 5.5V and can deliver an...
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📝 Component Overview
The AAT1147 is a step-down DC/DC converter designed for portable applications. It operates from an input voltage range of 2.5V to 5.5V and can deliver an output current of up to 400mA. The device features a high efficiency, low dropout voltage, and a small footprint, making it suitable for use in handheld devices such as cell phones, PDAs, and digital cameras.
Key Features and Benefits
- High efficiency step-down converter
- Input voltage range: 2.5V to 5.5V
- Output current: up to 400mA
- Low dropout voltage
- Small footprint: SC70JW-8 package
- Operating temperature range: -40°C to 85°C
- Typical application: portable electronics, handheld devices
Typical Applications
- Cell phones
- PDAs
- Digital cameras
- Portable media players
- Handheld gaming devices
- Wireless headsets
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 6V |
| 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 = 2.5V, IOUT = 200mA | 85% | 90% | 92% | % |
| Output Voltage Accuracy | VIN = 3.6V, IOUT = 200mA | -2% | 0% | 2% | % |
Package Information
- SC70JW-8: 8-pin SC70JW package
Pin Configuration
- Pin 1: VIN - Input voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
The AAT1147 is designed for use in portable applications where high efficiency and low dropout voltage are required. The device should be used in conjunction with a suitable inductor and output capacitor to ensure stable operation.
Installation Guidelines
The AAT1147 should be mounted on a printed circuit board with adequate thermal dissipation. The device is sensitive to moisture and should be handled in a dry environment.
Operational Notes
The AAT1147 is a high efficiency device and may require additional filtering to reduce noise. The device should be operated within the recommended temperature range to ensure reliable operation.