aat4650 Datasheet - Analogdevices
The AAT4650 is a high-performance, low-dropout linear regulator designed for powering sensitive analog and digital circuits.
📖 Datasheet Preview
⬇️ Download Complete Datasheet
Get the full 12-page technical datasheet in PDF format
📝 Component Overview
The AAT4650 is a high-performance, low-dropout linear regulator designed for powering sensitive analog and digital circuits. It features a high accuracy output voltage, low noise, and high power supply ripple rejection. The device is suitable for a wide range of applications, including wireless communication devices, portable electronics, and medical equipment.
Key Features and Benefits
- High accuracy output voltage: ±1.5%
- Low dropout voltage: 300mV at 500mA
- Low noise: 30μVrms
- High power supply ripple rejection: 60dB at 1kHz
- Low quiescent current: 50μA
- Thermal shutdown protection
- Current limit protection
Typical Applications
- Wireless communication devices
- Portable electronics
- Medical equipment
- Audio and video equipment
- Industrial control systems
- Automotive systems
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 5.5V |
| Output Current | 500mA |
| Operating Temperature | -40°C to 85°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage Accuracy | TA = 25°C | -1.5% | ±1% | 1.5% | % |
| Dropout Voltage | IOUT = 500mA | 250mV | 300mV | 350mV | mV |
Package Information
- SO-8: 8-lead small outline 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 input
- Pin 6: FB - Feedback input
- Pin 7: NC - No connection
- Pin 8: VOUT - Output voltage
🔧 Application Guidelines
Design Considerations
The AAT4650 is a high-performance linear regulator that requires careful design consideration to ensure optimal performance. The input capacitor should be placed as close as possible to the input pin, and the output capacitor should be placed as close as possible to the output pin.
Installation Guidelines
The AAT4650 is a surface-mount device that requires careful handling and installation to prevent damage. The device should be mounted on a thermally conductive substrate, and the input and output capacitors should be mounted as close as possible to the device.
Operational Notes
The AAT4650 is a linear regulator that requires a minimum input voltage of 2.7V to operate. The device also requires a minimum output current of 50μA to maintain regulation.