■ GENERAL DESCRIPTION
The XC6401 series are highly accurate, Dual, low noise, CMOS LDO voltage regulators. Performance features of the series includes low output noise, high ripple rejection ratio, low dropout and very fast turn-on times.
The XC6401 includes a reference voltage source, error amplifiers, driver transistors, current limiters and phase compensators internally. The XC6401’s current limiters foldback circuit also operates as a short protect for the output current limiter. The output voltage for each regulator is set independently by laser trimming. Voltages are selectable in 50mV steps within a range of 0.8V to 5.0V. The XC6401 series is also fully compatible with low ESR ceramic capacitors, reducing cost and improving output stability.

■ FEATURES
    Maximum Output Current : More than 150mA (300mA limit)
    Dropout Voltage : 100mV @100mA
    Operating Voltage Range : 1.5V ~ 6.0V
    Output Voltage Range : 0.8V~5.0V (50mV increments)
    Highly Accurate : ±2% (VOUT>1.5V)
                              : ±30mV (VOUT≦ 1.5V)
    Low Power Consumption : 25μ A (TYP.)
    Standby Current : Less than 0.1μ A (TYP.)
    High Ripple Rejection : 70dB @1kHz
    Operating Temperature Range : -40℃ ~ +85℃
    Low ESR Capacitor Compatible : Ceramic capacitor
    Low Output Noise
    Ultra Small Packages : SOT-26W,USP-6B,USP-6C

■ APPLICATIONS
● Mobile Phones
● Cordless phones and radio communication equipment
● Portable games
● Cameras, Video recorders
● Portable Audio Equipment
● PDAs