XC6209 Series

High Speed LDO Regulators with ON/OFF Control

The XC6209 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS processes. The series achieves high ripple rejection and low dropout and consists of a voltage reference, an error amplifier, a current limiter and a phase compensation circuit plus a driver transistor. Output voltage is selectable in 0.05V increments within a range of 0.9V ~ 6.0V.

The series is also compatible with low ESR ceramic capacitors which give added output stability. This stability can be maintained even during load fluctuations due to the excellent transient response of the series.

The current limiter's foldback circuit also operates as a short protect for the output current limiter and the output pin. The CE function enables the output to be turned off, resulting in greatly reduced quiescent current.

Typical Application Circuit


MaximumOutput Current 150mA, 300mA(E~H)
Dropout Voltage 200mV @IOUT=100mA
Operating Voltage 2.0V~10V
Output Voltage Range 0.9~6.0V(0.05V increments)
High Accuracy ±2%(VOUT>1.5V),±30mV(VOUT≦1.5V)
Low Quiescent Current 25μA(TYP.)
Stand-by Current Less than 0.1μA(TYP.)
High Ripple Rejection: 70dB(10kHz)
Operating Ambient Temperature -40℃~85℃
Low ESR Capacitor Low ESR Ceramic



Technical Document

Quality Reports


QuestionWhat is the standby current?

The current that flows through the IC in the standby mode. The standby mode means the state where the IC has been turned off by the CE function.