aat4252a Datasheet - Analogictech
The AAT4252A is a low dropout (LDO) linear regulator designed for high current applications.
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📝 Component Overview
The AAT4252A is a low dropout (LDO) linear regulator designed for high current applications. It operates from an input voltage range of 2.5V to 5.5V and provides a fixed output voltage of 3.3V or adjustable output via an external resistor divider. The device is capable of delivering up to 1A of output current and features a low dropout voltage, making it suitable for powering microprocessors, microcontrollers, and other digital ICs in a variety of applications.
Key Features and Benefits
- Low Dropout Voltage
- High Output Current Capability
- Fixed and Adjustable Output Voltage Options
- Low Quiescent Current
- Thermal Shutdown Protection
- Current Limit Protection
- Small TSOPJW-12 Package
Typical Applications
- Microprocessor and Microcontroller Power
- Digital IC Power Supply
- Portable Electronics
- Wireless Handsets
- PDAs and Smartphones
- Notebook Computers
- Set-Top Boxes
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Input Voltage | 6V |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -55°C to +150°C |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage Tolerance | TA = 25°C | -2% | 0% | 2% | % |
| Line Regulation | VIN = 2.5V to 5.5V | 0.1 | 0.2 | 0.3 | mV |
Package Information
- TSOPJW-12: 12-Lead Thin Small Outline Package
Pin Configuration
- Pin 1: VIN - Input Voltage
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
The AAT4252A should be used in applications where a low dropout voltage and high output current are required. The device is suitable for powering microprocessors, microcontrollers, and other digital ICs. Proper thermal management and PCB layout are crucial for optimal performance.
Installation Guidelines
The AAT4252A is available in a TSOPJW-12 package. It is recommended to follow standard SMT assembly procedures for mounting the device on the PCB. Ensure that the input and output capacitors are placed close to the device for optimal performance.
Operational Notes
The AAT4252A features thermal shutdown protection and current limit protection to prevent damage to the device. However, it is still important to follow proper design and assembly guidelines to ensure reliable operation.