LP3893
FEATURES
- 2 Ultra Low Dropout Voltage (270 m V at 3A typ)
- Low Ground Pin Current
- Load Regulation of 0.04%/A
- 60 n A Typical Quiescent Current in Shutdown
- 1.5% Output Accuracy (25°C)
- TO-220, DDPAK/TO-263 Packages
- Over Temperature/Over Current Protection
- - 40°C to +125°C Junction Temperature Range
APPLICATIONS
- DSP Power Supplies
- Server Core and I/O Supplies
- Linear Power Supplies for PC Add-in-Cards
- Set-Top Box Power Supplies
- Microprocessor Power Supplies
- High Efficiency Linear Power Supplies
- SMPS Post-Regulators
DESCRIPTION
The LP3893 is a high-current, fast-response regulator which can maintain output voltage regulation with minimum input to output voltage drop. Fabricated on a CMOS process, the device operates from two input voltages: Vbias provides voltage to drive the gate of the N-MOS power transistor, while Vin is the input voltage which supplies power to the load. The use of an external bias rail allows the part to operate from ultra low Vin voltages....
