Ultra-Low Quiescent Current Voltage Regulator (with Stand-by Function)
*AEC-Q100 (Grade2) compliant

The XD6506 series are positive voltage LDO regulators manufactured using CMOS processes. The series achieves Ultra low supply current, 0.8μA (TYP.) and consists of a reference voltage source, an error amplifier, a current fold-back circuit, and a phase compensation circuit plus a driver transistor.

The output voltage is selectable in 0.1V increments within the range of 1.2V to 5V using laser trimming technologies.

The series is also compatible with low ESR ceramic capacitors, which give added output stability.

The current limiter's fold-back circuit also operates as a short protect for the output current limiter and the output pin.

Furthermore, the CE function allows the output of the regulator to be turned off, resulting in greatly reduced power consumption.


Maximum Output Current150mA
Low Power Consumption0.8μA
Stand-by CurrentLess than 0.1μA
Dropout Voltage360mV@IOUT=100mA (VOUT=3.3V)
Operating Input Voltage1.5V ~ 6.0V
Output Voltage Range1.2V~5.0V(0.1V Step)
Output Accuracy±2.0%(1.5V<VOUT≦5.0V)
Protection functionCurrent limit Circuit
Low ESR Capacitor CompatibleCeramic Capacitor Compatible
Operating Temperature Range-40℃~+105℃
Environmentally FriendlyEU RoHS Compliant, Pb Free

Typical Application Circuit

Technical Document


Package Number of Pins Pcs/Reel Package Size(mm)
SOT-25 5 3,000 2.8 x 2.9 x 1.3

XD6506 Series Part Numbers

Part number Sample Type Output Voltage Output Voltage Accuracy Package EDA Online Store


CE function 1.2V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 1.5V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 1.8V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 2.5V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 2.8V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 3.0V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 3.3V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25


CE function 5.0V ±0.03V(VOUT<1.5V) ±2%(VOUT≧1.5V) SOT-25

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