Reverse Current Protection, 700mA High Speed LDO Regulator

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The XC6222 series is a highly accurate, low noise, high ripple rejection, low dropout, and low power consumption high speed CMOS voltage regulator. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a thermal protection circuit, a reverse current protection circuit and a phase compensation circuit. The CE function enables the entire circuit to be placed in a stand-by state by inputting a low level signal to the CE pin. In this stand-by mode, the electric charge at the output capacitor (CL) will be discharged by the internal auto-discharge switch, and as a result the VOUT pin will quickly return to the VSS level. Over-current protection and thermal protection circuits are integrated. The protection circuit starts to operate when either output current reaches the current limit level or junction temperature reaches the temperature limit. With the reverse current protection function, the reverse current flow is prohibited when VOUT voltage is higher than VIN voltage. The protection diode of IC is not necessary.


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Maximum Output Current: 700mA
Dropout Voltage: 120mV @IOUT=300mA(VOUT(T)=3.0V)
Operating Voltage Range: 1.7V?6.0VVOUT(T)=3.0V)n;0.02V)OUT?1.45V)(Standard), ±1%(VOUT?2.00V)(High Accuracy), ±20mV(VOUT?1.95V)(High Accuracy)
Output Voltages: 0.8V?5.0V (0.05V increments)V)n;0.02V)OUT?1.45V)(Standard), ±1%(VOUT?2.00V)(High Accuracy), ±20mV(VOUT?1.95V)(High Accuracy)
Accuracy: VOUT>2.0V(±1%), VOUT?2.0V(±0.02V)OUT?1.45V)(Standard), ±1%(VOUT?2.00V)(High Accuracy), ±20mV(VOUT?1.95V)(High Accuracy)
Low Power Consumption: 100A
Stand-by Current: 0.1A or lower
High Ripple Rejection: 65dB@1kHz
Operating Temperature: -40°C?85°C(±0.02V)OUT?1.45V)(Standard), ±1%(VOUT?2.00V)(High Accuracy), ±20mV(VOUT?1.95V)(High Accuracy)
Output Capacitor: Low ESR Capacitor
Packages: USP-6C, SOT-25, SOT-89-5


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