XC6230 Series ETR03084-007 Adjustable Voltage Output Multifunction 2A High Speed LDO Regulator GENERAL DESCRIPTION The XC6230 series are low on-resistance / low dropout voltage, highly precise, low noise, high PSRR, and large current High Speed LDO regulator IC. A built-in 0.17 low ON-resistance Pch driver transistor which can output up to a maximum output current 2.0A are also enclosed in a small surface-mount PKG, even in applications that input and output voltage difference is you use a very small state, it is possible to use in the space-saving. Then, the output voltage is possible to set the output voltage value to 1.2V ~ 5.0V by connecting the external resistors to VOFB terminal. The over current protection circuit will operate when the output current reaches its current limit. The thermal shutdown circuit will operate when the junction temperature reaches its limit temperature. The current limit is possible to arbitrarily set in a range of external resistor in 0.3 ~ 2.5A to ILIM terminal. The inrush current prevention circuit perform the function of suppressing the variation of the VIN line and It is pos sible to suppress the current (inrush current), which is charged in the output capacitor (CL) during IC start rising (when the IC control in CE). In addition, the CE function enables the output to be turned off and the IC becomes a stand-by mode resulting in greatly reduced power consumption. When in standby mode, the output capacitor (CL) to be discharged at high speed it can be returned to the VSS level. The IC has further built-in reverse current prevention circuit, to prevent backflow current when the voltage state of more than input terminal (VIN) to the output terminal (VOUT). APPLICATIONS FEATURES Industrial equipment Output current : 2.0A Current Limit setting range : 0.3A ~ 2.5A Mobile modules Dropout Voltage(USP-6C) : 0.17V I =1.0A / V =3.3V OUT OUT SET Wireless modules Dropout Voltage(SOP-8FD) : 0.23V I =1.0A/ V =3.3V OUT OUT SET Input voltage range : 1.7 ~ 6.0V Adjustable Output Voltage Accuracy : 1.2V 1.0 Output voltage setting range : 1.2V ~ 5.0V Supply current : 45A Addition function : Reverse Current Protection(Option) Inrush Current Protection Output Voltage adjustable C High Speed Discharge(H type) L Current Limit adjustable Protection function : Thermal shutdown (Detection Temp150 Release Temp125) Current limit Output capacitor : Ceramic capacitor (4.7F) Operating Ambient Temperature : -40~ +105 Packages : USP-6C, SOP-8FD Environment friendly features : EU RoHS Directive compliant, Pb free TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage vs. Output Current (Output current externally adjusted.) XC6230(V =1.2V) OUT SET V =1.2V, Ta=25, OUT SET VIN=2.2V, CIN=2.2F(ceramic), CL=4.7F(ceramic) 1.6 RLIM SET=0 RLIM SET=13.5k 1.4 RLIM SET=36k V IN V OUT RLIM SET=100k RLIM SET=200k INPUT 1.2 CE R 21 1.0 VOFB V IN C =4.7uF L 0.8 (ceramic) CIN =2.2uF (ceramic) R 0.6 ILIM 22 SS V 0.4 R ILIM 0.2 0.0 0 500 1000 1500 2000 2500 3000 Output Current : I (mA) OUT 1/25 Output Voltage : V (V) OUTXC6230 Series BLOCK DIAGRAMS XC6230 series, Type H Reverse Current Protection V OUT V IN V OFB CurrentLimit C FB & ThermalShutdown R 11 + I LIM Error R 12 Amp R DCHG - each circuit CE ON/OFF CE Voltage Control Reference V SS *Diodes inside the circuit are an ESD protection diodes. XC6230 series, Type S Reverse Current V Protection OUT V IN V OFB CurrentLimit C FB & ThermalShutdown R 11 + I LIM Error R 12 Amp - each circuit ON/OFF CE Voltage Control Reference V SS *Diodes inside the circuit are an ESD protection diodes. 2/25