Ultra Small Voltage g Regulators g with 0.6μA Ultra Low Supply Current XC6504 Series Portable Gaming New Product Leaflet Portable Information Terminals Bluetooth Equipment The XC6504 series can operate at an ultra-low supply current of 0.6μA, and the output voltage is highly accurate even when the output current is 1μA (light load), which making this series ideal for applications that require very little output current. These regulators consist of a reference voltage supply, error amplifier, driver transistor, over-current protection circuit, phase compensation circuit, and other internal components. A ceramic or other low ESR capacitor can be used for CL, however, internal phase compensation enables stable operation even without CL. The IC is put in the stand-by mode by inputting L level in the CE pin, reducing the supply current to 0.1μA or less. In the stand-by mode, the electrical charge on CL can be discharged by an internal switch to quickly return the IC to the VSS level. USPN-4B02 (0.95×0.75×0.4mm) USPQ-4B04 (1.0×1.0×0.6mm) Own supply current of 0.6μA is realized 1 Battery run time is determined by the LDO’s own supply current and the current of the system to which the LDO supplies power (load current as seen from the LDO). In cases where a system current of several tens of mA to several hundreds of mA is required, the LDO’s own supply current has almost no effect on the battery run time; however, when the operation at a very small current of several mA or less continues over an extended time (when the system is nearly in the standby state, such as waiting for communication), the proportion of the LDO’s own supply current to the overall current (system current + LDO’s own supply current) increases, and the magnitude of the LDO’s own supply current has a large effect on the run time. The XC6504 series achieves 0.6μA for its own supply current, which is the smallest in the industry. This makes it possible to extend the run time of battery-operated devices and contributes to make the battery run time longer. XC6504A111 Comparison of supply current characteristics Supply Current vs. Input Voltage Company A 1.1 Company B XC6504 25℃ 2.5 Supply Current : ISS( μA) Supply Current : ISS(μA) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.6μA 0.3 0.2 2.0 1.5 1.0 0.5 0.1 0.0 -50 -25 0 25 50 75 100 0.0 0 1 2 3 4 5 6 Input Voltage : VIN(V) Ambient Temperature : Ta(℃) Features Input Voltage Range Output Voltage Range 1.4V～6.0V 1.1V～5.0V (0.1Ｖ increments) Output Voltage Accuracy ±0.02V＠VOUT＜2.0V, IOUT=1μA /1mA ±1%＠VOUT≧2.0V, IOUT=1μA /1mA 150mA 3.3Ω＠VOUT(T)=3.0V Maximum Output Current ON Resistance Satand-by Current Protection Circuits 0.01μA Current Limit Functions Short Circuit Protection CL High-speed Discharge Capacitor Low ESR Capacitor Packages USPN-4B02, SSOT-24, SOT-25, USPQ-4B04 www.torex.co.jp/english/ November 2012② ● Values shown in this sheet can be changed without any prior notice. New Product Leaflet Ultra Small Voltage Regulators with 0.6μA Ultra Low Supply Current XC6504 Series 2 Reduces fluctuations of output voltage at light loads XC6504A301 Output Voltage vs. Output Current VIN=4.0V、CIN=1μF(ceramic) Output Voltage : VOUT(V) 3.12 The accuracy of output voltage at the light loads that are commonly used with low supply current LDOs 3V±1％ has been improved. Even at an output current IOUT of 1mA or less, the fluctuations of output voltage with respect to output current are very small, and the increases of output voltage are minimal even at high temperatures. 3.08 3.04 3.00 2.96 2.92 2.88 85 ℃ 2.84 25 ℃ -50 ℃ 2.80 1n 10n 100n 1u 10u 100u 1m Output Current : IOUT(A) 3 Ultra-small package and fewer external components with no capacitor reduced the mounting area! Regular LDO XC6504 Series Most of LDOs require that an output capacitor CL be connected to the output pin to stabilize the output voltage. This is because the output capacitance CL is used for phase compensation and if there is no CL, the IC becomes unable to perform phase compensation, and abnormal oscillation occurs in the output. For this reason, it is common practice to connect a capacitor exclusively for the LDO near the LDO output pin. However, the XC6504 series has an internal phase compensation circuit that makes it possible to obtain a stable output voltage without CL. The Operation is also stable if an output capacitance is temporarily connected, and thus even in cases where a bypass capacitor is connected to an IC on the load side, the XC6504 series can be used without any limitations due to by the capacitor. 4 Comparison of characteristics to previous products XC6504 XC6215 XC6218 Supply Current 0.6μA 0.8μA 1.0μA Input Voltage Range 1.4V ~ 6.0V 1.5V ~ 6.0V 1.5V ~ 6.0V Output Voltage Range 1.1V ~ 5.0V 1.1V ~ 5.0V 0.9V ~ 4.0V Output Voltage Accuracy ±0.02V@VOUT＜2.0V ±1%@VOUT≧2.0V Maximum Output Current 150mA 200mA 200mA Protection Circuits Current Limit Short Circuit Protection Current Limit Short Circuit Protection Current Limit Short Circuit Protection Functions CL High-speed Discharge - - Packages USPQ-4B04 USPN-4B02 SSOT-24 SOT-25 USP-4 SSOT-24 SOT-25 USPN-4 USP-3 SSOT-24 ±30mV(0.9 ＜VOUT≦1.5V) ±30mV(0.9＜VOUT≦1.5V) ±2%(1.5 ＜VOUT≦5.0V) ±2%(1.5＜VOUT≦4.0V) www.torex.co.jp/english/ November 2012② ● Values shown in this sheet can be changed without any prior notice.