FEATURES
- Works with 1.1V ~ 3.6V VIN
- Ultra Low Dropout Voltage
- Low Quiescent Current
- Excellent Line and Load Regulation
- Guaranteed Output Current of 4.0A
- Adjustable Output Voltage Down to 0.8V
- VOUT Power OK Signal (A Version Only)
- Programmable Soft-Start (A Version Only)
- Logic Controlled Shutdown Option
- Over-Temperature/Over-Current Protection
- -40°C to 125°C Junction Temperature Range
DESCRIPTION
The TJ2134 is a 4.0A high performance ultra low-dropout linear regulator ideal for powering core voltages of lowpower microprocessors. The TJ2134 implements a dual supply configuration allowing for very low output impedance. The TJ2134 requires a bias input supply and a main input supply, allowing for ultra-low input voltages on the main supply rail. The input supply operates from 1.1V to 5.5V and the bias supply requires between 2.7V and 5.5V for proper operation. The Soft-Start reduces inrush current of the load capacitors and minimizes stress on the input power source during start-up. The TJ2134 delivers high current and ultra-low-dropout output voltage as low as 0.8V for applications where VOUT is very close to VIN. The TJ2134 is developed on a CMOS technology which allows low quiescent current operation independent of output current. This technology also allows the TJ2134 to operate under extremely low dropout conditions.
