8F Sakura Nihonbashi Bldg., 1-13-12, Nihonbashikayaba-cho, Chuo-ku, Tokyo 103-0025 Japan Tel: +81-3-5652-8700 Fax: +81-3-5652-8701 http://www.torex.co.jp/english/ PRESS RELEASE TRX031 December 17, 2007 XC6601 Series Low Input Voltage LDO Regulator Torex Semiconductor Ltd. (Chuo-Ku, Tokyo : President, Tomoyuki Fujisaka) announces the release of the XC6601 Series of Low Input Voltage, High Speed LDO regulators. The XC6601 is a 400mA high speed voltage regulator with a built-in N channel FET. Even at low output voltages, it is still possible to achieve high efficiency operation, thanks to the ultra low ON resistance of the IC. The device is ideal for applications which require low dropout voltage operation. The XC6601 consists of a voltage reference, error amplifier, driver transistor, current limiter, fold-back circuit, thermal shutdown (TSD) circuit, under voltage lockout (UVLO) and a phase compensation circuit. The output voltage is selectable in 0.05V increments within the range of 0.70V to 1.80V using laser trimming technologies. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors. The XC6601 has a built-in over current protection and TSD circuit. These two protection circuits will operate when the output current reaches its current limit or the junction temperature reaches its temperature limit. With the built-in UVLO function, the regulator output is forced OFF when the VBIAS pin or the VIN pin drops below the UVLO voltage. The CE (chip enable) function means that the output can be turned off and the IC put into stand-by mode, thereby greatly reducing power consumption. During the switch into stand-by mode, the electric charge at the CL capacitor will be discharged via the internal auto-discharge switch so that the VOUT pin drops down to ground quickly. 【XC6601 Features】 ● Ideally suited for use with a broad range of battery operated products such as mobile phones ● ON resistance reduced by 50% in comparison to a conventional LDO such as the XC6210 at VBIAS=3.6V ● Under voltage lockout integrated ● Available in an ultra small USP-6C package 1 Torex Semiconductor Ltd. 2007/12/17 Maximum Output Current Dropout Voltage Bias Voltage Input Voltage Output Voltage Output Accuracy : : : : : Supply Current Standby Current UVLO TSD Operating Temperature Range CL High Speed Discharge Function Low ESR Capacitor Compatible Packages : : : : : 400mA (Limit=500mA TYP) 35mV @ IOUT=100mA (VBIAS-VOUT=2.4V) 2.5V ∼ 6.0V (VBIAS-VOUT≧0.9V) 1.0V ∼ 3.0V (VIN≦VBIAS) 0.7V ∼ 1.8V (0.05V steps) : ±20mV IBIAS=25μA, IIN=1.0μA (TYP) IBIAS=0.01μA, IIN=0.01μA (TYP) VBIAS=2.0V, VIN=0.4V (TYP) Shutdown: 150℃, Release: 125℃ -40℃ ∼ 85℃ :SOT-25, USP-6C, SOT-89-5 *Performance depends on external components and wiring on the PCB. ▲USP-6C （1.8 x 2.0 x 0.6mm） [Company Outline] Name : Torex Semiconductor Ltd. Found : 1995 Capital : 984.78 million JPY President : Tomoyuki Fujisaka Employees : 213 (as of April 1, 2007) Operations : Manufacturing of ICs and active discrete components. Sales of ICs and active discrete components. http://www.torex.co.jp/english/ For further information, please contact: Singapore: Torex Semiconductor(S) Pte Ltd. Tel: +65-6745-1352 USA: Torex USA Corporation Tel: +1-949-261-2022 Europe: Torex Semiconductor Europe Ltd. Tel: +44-1530-510190 2 Torex Semiconductor Ltd. 2007/12/17