aat1270 Datasheet - Analogictech
The AAT1270 is a high-efficiency, step-up converter designed for battery-powered applications.
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📝 Component Overview
The AAT1270 is a high-efficiency, step-up converter designed for battery-powered applications. It operates from a single-cell lithium-ion battery and can deliver up to 200mA of output current. The device features a high switching frequency of 2MHz, allowing for the use of small external components. The AAT1270 also includes over-temperature protection, over-voltage protection, and under-voltage lockout to ensure reliable operation.
Key Features and Benefits
- High-efficiency step-up converter
- Single-cell lithium-ion battery operation
- Up to 200mA of output current
- High switching frequency of 2MHz
- Small external components
- Over-temperature protection
- Over-voltage protection
- Under-voltage lockout
Typical Applications
- Battery-powered devices
- Portable electronics
- Wireless handsets
- PDAs
- Notebook computers
📊 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 = 5V, IOUT = 200mA | 80% | 85% | 90% | % |
| Output Voltage | VIN = 3.6V, IOUT = 200mA | 4.9V | 5V | 5.1V | V |
Package Information
- 14-pin TSSOP: Thin Shrink Small Outline Package
Pin Configuration
- Pin 1: VIN - Input Voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
The AAT1270 is designed for high-efficiency, step-up conversion in battery-powered applications. To achieve optimal performance, it is recommended to use a high-quality inductor and capacitor. The device also features a high switching frequency, which allows for the use of small external components.
Installation Guidelines
The AAT1270 is available in a 14-pin TSSOP package. To ensure reliable operation, it is recommended to follow proper PCB layout and mounting guidelines. The device should be mounted on a heat sink or thermal pad to improve thermal performance.
Operational Notes
The AAT1270 features over-temperature protection, over-voltage protection, and under-voltage lockout to ensure reliable operation. The device also includes a soft-start feature to prevent inrush current during startup.