XC6217 Series ETR03022 016 200mA High SpeedGreen Operatio LDO Voltage Regulators GreenOperation Compatible GENERAL DESCRIPTION The XC6217 series are precise, low noise, high speed, low dropout regulators with green operation (GO) function. They are fabricated using Torexs CMOS process. Performance features of the series include high ripple rejection and low dropout voltage, and the series include a reference voltage source, an error amplifier, a current limiter, and a phase compensation circuit. GO provides high speed operation, low power consumption and high efficiencies by automatically switching between a high speed mode (HS) and a power save mode (PS) depending upon the load current level. The switching point of the GO to the output current is being fixed inside the IC. When only high-speed operation is required, it can be fixed by inputting a high level signal to the GO pin, thus providing operating conditions with the most suitable level of supply current for the application. The CE function enables the output to be turned off resulting in greatly reduced power consumption. In this state, with the XC6217 series B/D Type, the IC turns on the internal switch located between the V and V pins. This short enables the electric charge OUT SS at the output capacitor (C ) to be discharged via the internal auto-discharge resistance, and as a result the V pin quickly L OUT returns to the V level. The series output stabilization capacitor (C ) is also compatible with low ESR ceramic capacitors. SS L Output voltage is selectable in 0.05V increments within a range of 0.80V~4.00V, using laser trimming technologies. The current limiter s foldback circuit also operates as a short circuit protection for the output current limiter and the output pin. FEATURES APPLICATIONS Output Current : 200mA <Limit: 250mA TYP.> Smart phones / Mobile phones Dropout Voltage : 80mV I =100mA, V =3.0V OUT OUT Portable game consoles Operating Voltage Range : 1.6V ~ 6.0V (0.8VV 1.55V OUT Digital still cameras / Camcorders 1.8V ~ 6.0V (1.6VV 4.0V OUT Digital audio equipments Output Voltage Range : 0.80V~4.00V (0.05V increments) Accuracy : +2% (HS: V >2.00V) (Standard) OUT +30mV (HS: V 1.95V) (Standard) OUT +2.5%, -3.5% (PS: V >2.60V) (Standard) OUT +3.5%, -4.5% (PS:1.60V 2.55V) (Standard) OUT +70mV, -90mV (PS:0.80V 1.55V) (Standard) OUT +1% (HS: V >2.00V) (High Accuracy) OUT +20mV (HS: V 1.95V) (High Accuracy) OUT +1.5%, -2.5% (PS: V >2.60V) (High Accuracy) OUT +2.5%, -3.5% (PS:1.60V 2.55V) (High Accuracy) OUT +50mV, -70mV (PS:0.80V 1.55V) (High Accuracy) OUT Low Power Consumption : TYP.4.5A when PS mode TYP.25A when HS mode Standby Current : Less than 0.1A High Ripple Rejection : 70dB 1kHz (When HS mode) Low ESR Capacitor : 1.0F Ceramic capacitor Regulators with Green Operation (GO) Function C High-Speed-Discharge (XC6217B/D) L Operating Ambient Temperature :-40~+85 Packages : USP-4D, SOT-25(XC6217 Series A/B Type) SSOT-24,USPN-4(XC6217 Series C/D Type) Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL PERFORMANCE TYPICAL APPLICATION CIRCUIT CHARACTERISTICS XC6217B281MR V =3.8V,Tr=Tf=5usec, Ta=25 IN C =C =1.0uF(Ceramic) IN L 2.9 3 2.85 2.95 V HSmode OUT 2.8 2.9 V IN VOUT 2.75 2.85 V GOmode OUT 2.7 2.8 2.65 2.75 GO CE 2.6 2.7 VSS C L 2.55 2.65 1.0 F C Output Current I =50mA IN OUT 2.5 2.6 (ceramic) 1.0 F I =0.1mA I =0.1mA OUT OUT 2.45 2.55 (ceramic) 2.4 2.5 Time (500usec/div) 1/34 VOUT HSmode(V) VOUT GOmode(V) XC6217 Series BLOCK DIAGRAMS XC6217 Series A Type XC6217 Series B Type XC6217 Series C Type XC6217 Series D Type *Diodes inside the circuit are an ESD protection diode and a parasitic diode. 2/34