aat1100 Datasheet - Analogictech
The AAT1100 is a triple-channel DC-DC converter designed for high efficiency and compact size.
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📝 Component Overview
The AAT1100 is a triple-channel DC-DC converter designed for high efficiency and compact size. It operates from an input voltage range of 2.5V to 5.5V and can deliver output voltages from 0.6V to 5V. The device features a high switching frequency of up to 2MHz, allowing for the use of small external components. The AAT1100 also includes under-voltage lockout, over-temperature protection, and soft-start to ensure reliable operation.
Key Features and Benefits
- Triple-channel DC-DC converter
- High efficiency up to 95%
- Input voltage range: 2.5V to 5.5V
- Output voltage range: 0.6V to 5V
- High switching frequency: up to 2MHz
- Small external components
- Under-voltage lockout
- Over-temperature protection
- Soft-start
Typical Applications
- Portable electronics
- Wireless devices
- PDAs and smartphones
- Digital cameras
- MP3 players
- Notebook computers
- Tablet computers
📊 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 | V_IN = 3.3V, V_OUT = 1.8V, I_OUT = 100mA | 85% | 90% | 95% | % |
| Output Voltage Tolerance | V_IN = 3.3V, V_OUT = 1.8V, I_OUT = 100mA | -3% | 0% | 3% | % |
Package Information
- TSSOP-16: 16-lead Thin Shrink Small Outline Package
Pin Configuration
- Pin 1: VIN - Input voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
The AAT1100 requires careful selection of external components to ensure optimal performance. The input capacitor should be a low-ESR type, and the output capacitor should be a high-frequency, low-ESR type. The inductor should be a high-current type with a low DC resistance.
Installation Guidelines
The AAT1100 should be mounted on a PCB with adequate thermal dissipation. The device should be kept away from high-temperature components and heat sources. The input and output capacitors should be placed close to the device to minimize noise and improve efficiency.
Operational Notes
The AAT1100 has a built-in soft-start feature to prevent inrush current during startup. The device also has under-voltage lockout and over-temperature protection to ensure reliable operation. The output voltage can be adjusted using a resistor divider.