Product Summary

The b121ew09 v0 is a low voltage input CMOS LDO regulator which provides highly accurate (±20mV) outputs and can supply current efficiently due to its ultra low on-resistance even at low output voltages. The series 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. It is ideal for: (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.



Parametrics

b121ew09 v0 absolute maximum ratings: (1)Operate time: 1 ms max.; (2)Release time: 1/2 of load power source cycle + 1 ms max.; (3)Output ON voltage drop: 1.6 V (RMS)max.; (4)Leakage current: 2 mA max. (at 100 VAC); (5)Insulation resistance: 1,000 MΩ min. (at 500 VDC); (6)Dielectric strength: 2,000 VAC, 50/60 Hz for 1 min; (7)Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude; (8)Shock resistance Malfunction: 1,000 m/s 2 (approx. 100G); (9)Ambient temperature Operating: –30°C to 80°C; Storage: –30°C to 100°C; (10)Ambient humidity Operating: 45% to 85%; (11)Weight: Approx. 15 g.

Features

b121ew09 v0 features: (1)Maximum Output Current: 400mA (Limiter 550mA TYP.); (2)Dropout Voltage Bias Voltage Range: 38mV@IOUT=100mA (TYP.)(at VBIAS - VOUT=2.4V); (3): 2.5V ~ 6.0V; (4)(VBIAS - VOUT≧1.2V); (5)Input Voltage Range: 1.0V ~ 3.0V; (6)Output Voltage Range: 0.7V ~ 1.8V (0.05V increments); (7)Power Consumption : IBIAS=25μA , IIN=1.0μA (TYP.): IBIAS=0.01μA , IIN=0.01μA (TYP.); (8)TSD (Detect/Release): 150℃/125℃ (TYP.); (9)CL High Speed Auto-Discharge Low ESR Capacitor: Ceramic Capacitor Compatible; (10)Packages: USP-6C, SOT-25, SOT-89-5.

Diagrams

b121ew09 v0 pin connection