XC6223 Series ETR0339-009 Built-in Inrush Current Protection, 300mA High Speed LDO Voltage Regulator GENERAL DESCRIPTION The XC6223 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout and low power consumption. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a phase compensation circuit, a thermal shutdown circuit and an inrush current protection circuit. The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series enables the electric charge at the output capacitor CL to be discharged via the internal switch, and as a result the VOUT pin quickly returns to the VSS level. The output stabilization capacitor CL is also compatible with low ESR ceramic capacitors. The output voltage is selectable in 0.05V increments within the range of 1.2V to 4.0V which fixed by laser trimming technologies. The over current protection circuit and the thermal shutdown circuit are built-in. These two protection circuits will operate when the output current reaches current limit level or the junction temperature reaches temperature limit level. FEATURES APPLICATIONS Maximum Output Current : 300mA Digital still cameras Input Voltage Range : 1.65.5V Smart phones / Mobile phones Output Voltages : 2.04.0V Accuracy 1% Portable game consoles 1.21.95V Accuracy 20mV 0.05V increments Modules (wireless, cameras, etc. ) Dropout Voltage : 200mVI =300mA (V =3.0V) OUT OUT IC recorders Low Power Consumption : 100A Mobile devices / terminals Stand-by Current : 0.1A High Ripple Rejection : 80dBf=1kHz Bluetooth Protection Circuits : Current Limit400mA Wireless LAN Short Circuit Protection Digital TV tuners Over Heat Protection Inrush Current Protection Low ESR Capacitors : C =1.0F, C =1.0F IN L CE Function : Active High C High Speed Discharge L Operating Ambient Temperature : -40+105 Packages : USPQ-4B03 USP-4 SSOT-24 SOT-25 SOT-89-5 : EU RoHS Compliant, Pb Free Environmentally Friendly TYPICAL PERFORMANCE TYPICAL APPLICATION CIRCUIT CHARACTERISTICS XC6223x251 tr = tf = 0.5s, Ta = 25, I = 1150mA OUT V = 3.5V, C = 1F (ceramic), C = 1F (ceramic) IN IN L 2.60 400 2.55 350 2.50 300 Output Voltage 2.45 250 2.40 200 2.35 150 Output Current 2.30 100 2.25 50 2.20 0 Time 20s/div 1/37 Output Voltage: V V OUT Output Current Iout mA XC6223 Series PIN CONFIGURATION *The dissipation pad for the USPQ-4B03,USP-4 packages should be solder-plated in reference mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the V (No. 2) pin. SS PIN ASSIGNMENT PIN NUMBER PIN NAME FUNCTIONS USPQ-4B03 USP-4 SSOT-24 SOT-25 SOT-89-5 4 4 4 1 4 V Power Input IN 1 1 3 5 5 V Output OUT 2 2 2 2 2 VSS Ground 3 3 1 3 3 CE ON/OFF Control - - - 4 1 NC No Connection LOGIC CONDITION FOR THE PIN PIN NAME DESIGNATOR CONDITION L 0VVCE0.3V CE H 1.0VVCE5.5V OPEN CE=OPEN 2/37