XC6402 Series

700mA High Speed LDO Regulators, Voltage Detector Function

The XC6402 series are precise, low noise, high current, positive voltage low dropout regulators with built-in voltage detector. They are fabricated using Torex’s CMOS process. The series features a voltage reference, an error amplifier, a current limiter, a voltage detector and a phase compensation circuit plus a driver transistor. The output voltage of the LDO and detect voltage of the detector is selectable in 0.05V increments with in the range of 0.8V to 5.0V. With a low ON resistance driver transistor built-in, batteries can be used until input-output voltage differential is minimal and can accordingly be used for a longer time. The series is also compatible with low ESR ceramic capacitors which give added output stability. The series provides options to the user to select from a variety of circuit features, such as detector monitoring, detector output logic, EN pin input logic, and internal pull-up / down resistance (semi-custom).

The IC's internal regulator circuit can be placed in stand-by mode via the EN function (XC6402C series). In the stand-by mode, power consumption is greatly reduced. The XC6402F series can delay the detector output: the delay time can be controlled by the use of an external capacitor.

Typical Application Circuit


MaximumOutput Current More than 700mA(800mA limit)(1.6V≦VROUT(T)≦5.0V)
Dropout Voltage 50mV@IOUT=100mA
Operating Voltage Range 1.5V~6.0V
Output Voltage Range VR:0.8V~5.0V(50mV increments),VD:0.8V~5.0V(0.05V increments)
High Accuracy ±2%
Low Quiescent Current 35μA(TYP.)
High Ripple Rejection: 60dB@1kHz
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.