aat3221 Datasheet - Analogictech
The AAT3221 is a low dropout linear regulator designed for handheld devices. It provides a high accuracy output voltage with low noise and high power supply...
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📝 Component Overview
The AAT3221 is a low dropout linear regulator designed for handheld devices. It provides a high accuracy output voltage with low noise and high power supply ripple rejection. The device is available in a small SC70JW-5 package, making it ideal for space-constrained applications.
Key Features and Benefits
- Low Dropout Voltage: 200mV
- High Accuracy Output Voltage: ±2%
- Low Noise: 30μVrms
- High Power Supply Ripple Rejection: 60dB
- Small SC70JW-5 Package
- Low Quiescent Current: 150μA
- Overcurrent Protection
- Thermal Shutdown
Typical Applications
- Handheld Devices
- Smartphones
- Tablets
- Notebook Computers
- Portable Media Players
- Wireless Headsets
- Bluetooth Devices
📊 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 |
|---|---|---|---|---|---|
| Output Voltage Accuracy | TA = 25°C | ±1.5% | ±2% | ±3% | % |
| Line Regulation | VIN = 2.5V to 5.5V | 0.1 | 0.2 | 0.5 | mV |
Package Information
- SC70JW-5: 5-pin SC70JW package
Pin Configuration
- Pin 1: VIN - Input Voltage
- Pin 2: GND - Ground
- Pin 3: VOUT - Output Voltage
- Pin 4: NC - No Connection
- Pin 5: EN - Enable
🔧 Application Guidelines
Design Considerations
The AAT3221 is designed for use in handheld devices where low power consumption and high efficiency are critical. The device should be connected to a suitable input capacitor to ensure stable operation.
Installation Guidelines
The AAT3221 should be mounted on a suitable PCB with adequate thermal dissipation. The device is sensitive to moisture and should be stored in a dry environment.
Operational Notes
The AAT3221 is protected against overcurrent and thermal shutdown. However, it is still possible to damage the device if it is subjected to excessive stress.