aat1123 Datasheet - Analogictech
The AAT1123 is a high efficiency, low dropout linear regulator designed for handheld devices.
📖 Datasheet Preview
📄 + 5 more pages available - Download the full PDF to see complete datasheet
⬇️ Download Complete Datasheet
Get the full 20-page technical datasheet in PDF format
📝 Component Overview
The AAT1123 is a high efficiency, low dropout linear regulator designed for handheld devices. It can deliver up to 600mA of output current and has a low dropout voltage of 300mV at 600mA. The device has a very low quiescent current of 40uA, making it suitable for battery-powered devices. The AAT1123 also features over-temperature and over-current protection.
Key Features and Benefits
- High efficiency, low dropout linear regulator
- Up to 600mA output current
- Low dropout voltage of 300mV at 600mA
- Low quiescent current of 40uA
- Over-temperature and over-current protection
- Small SC70JW-8 package
- Input voltage range of 2.5V to 5.5V
- Output voltage range of 1.5V to 4.5V
Typical Applications
- Handheld devices
- Mobile phones
- PDAs
- Cameras
- Portable audio players
- Wireless headsets
- Bluetooth devices
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 5.5V |
| Operating Temperature | -40 to 85°C |
| Storage Temperature | -40 to 150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage | Vin = 3V, Iout = 100mA | 1.5V | 1.8V | 2.1V | V |
| Dropout Voltage | Vin = 3V, Iout = 600mA | 200mV | 300mV | 400mV | mV |
Package Information
- SC70JW-8: 8-pin SC70JW package
Pin Configuration
- Pin 1: VIN - Input voltage
- Pin 2: GND - Ground
- Pin 3: VOUT - Output voltage
- Pin 4: EN - Enable input
- Pin 5: NC - No connection
- Pin 6: NC - No connection
- Pin 7: NC - No connection
- Pin 8: PGND - Power ground
🔧 Application Guidelines
Design Considerations
The AAT1123 is designed for use in handheld devices where high efficiency and low dropout voltage are required. The device should be used with a suitable input capacitor to ensure stable operation.
Installation Guidelines
The AAT1123 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 AAT1123 has a built-in over-temperature protection circuit that will shut down the device if the junction temperature exceeds 150°C. The device will automatically restart when the junction temperature falls below 120°C.