AiT Semiconductor has unveiled the A6523A, a high-accuracy, CMOS LDO voltage regulator, offering low power, a high ripple rejection ratio, and low dropout. The A6523A is ideal for cutting-edge mobile phones. It includes a reference voltage source, error amplifiers, driver transistors, current limiters, and phase compensators. The A6523A of current limiters' foldback circuit operates as a short protect for the output current limiter and the output pin.
The A6523A is fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability. This high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance and high PSRR achieved across a broad range of frequencies. The CE function allows the output of the regulator to be turned off, resulting in greatly reduced power consumption.
The A6523A is available in SOT-23, SOT-223, SOT-25, SOT89-3, DFN4(1.2 x 1.6), SOP8 packages
Key features
- Maximum Output Current: 500 mA (VIN= 4.3 V,VOUT= 3.3 V)
- Dropout Voltage: 125 mV at IOUT = 100 mA (VOUT= 3.3 V)
- Operating Voltage Range: 1.8 V~18 V
- Output Voltage Range: 1.6 V~5.0 V
- Highly Accuracy: ±1%
- Low Power Consumption: 1.8 μA (TYP.)
- Standby Current: 0 μA (TYP.)
- High Ripple Rejection: 65 dB at 1 KHz
- Line Regulation: 0.035%/V(TYP.)
- Built-in temperature protection and current limiting protection
Key applications
- Mobile phones
- Cordless phones
- Radio communication equipment
- Portable games
- Cameras, Video cameras
- Reference voltage sources
- Battery-powered equipment
