AiT Semiconductor introduces 300 mA ultra-low noise, ultra-fast High Power White LED Driver IC. The A8113 is designed for portable RF and wireless applications with demanding performance and space requirements. The A8113 performance is optimized for battery-powered systems to deliver ultra-low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The A8113 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The A8113 consumes less than 0.01 μA in shutdown mode and has a fast turn-on time of less than 50 μs. The other features include ultra-low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio.
The A8113 is available in the SOT-25 package.
Key features
- Ultra-low Noise for RF Application
- Ultra-Fast Response in Line/Load Transient
- Quick Start-Up (Typically 50 μS)
- <0.01 μA Standby Current When Shutdown.
- Low Dropout:210 mV at 300 mA
- Wide Operating Voltage Ranges:2 V to 6 V
- TTL-logic-Controlled Shutdown Input
- Low-Temperature Coefficient
- Current Limiting Protection
- Thermal Shutdown Protection
- Only 1 μF Output Capacitor Required for Stability
- High Power Supply Rejection Ratio
- Custom Voltage Available
- Fast output discharge
- Available in SOT-25 package
Key applications
- LED APPLICATION
- Cellular and Smart Phones
- Battery-Powered Equipment
- Laptop, Palmtops, Notebook Computers
- Hand-Held Instruments
- PCMCIA Cards
- MP3/MP4/MP5 Players
- Portable Information Appliances
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