B121EW03

The B121EW03 is designed as one kind of low voltage input CMOS LDO regulator that is ideally suited to the applications which require very low dropout voltage operation and consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a fold back circuit, a thermal shutdown (TSD) circuit, an under voltage lock out (UVLO) circuit and a phase compensation circuit. This B121EW01 can be used in wide range of applications such as (1)mobile phones; (2)cordless phones; (3)wireless communication equipment; (4)portable games; (5)cameras; (6)audio visual equipment; (7)portable AV equipment; (8)PDAs.

Features of the B121EW03 are:(1)Maximum Output Current: 400 mA (Limiter 550mA TYP.);(2)Dropout Voltage: 38 mV @ IOUT=100 mA (TYP.);(3)Bias Voltage Range: 2.5 V to 6.0 V;(4)Input Voltage Range: 1.0 V to 3.0 V;(5)Output Voltage Range: 0.7 V to 1.8 V (0.05V increments);(6)Output Voltage Accuracy: ±20 mV;(7)TSD (Detect / Release): 150/125 (TYP.);(8)Operating Temperature Range: -40 to 85;(9)Packages: USP-6C, SOT-25, SOT-89-5.

The absolute maximum ratings of the B121EW03 can be summarized as:(1)Bias Voltage: VSS-0.3 to +7.0 V;(2)Input Voltage: VSS-0.3 to +7.0 V;(3)Output Current: 700 mA;(4)Output Voltage: VSS-0.3 to VBIAS+0.3 V;(5)CE Input Voltage: VSS-0.3 to +7.0 V;(6)Operating Temperature Range: -40 to +85 ;(7)Storage Temperature Range: -55 to +125 . If you want to know more information such as the electrical characteristics about it, please download the datasheet in www.seekic.com or www.chinaicmart.com.