AZ2940

Data Sheet 1A ULTRA LOW DROPOUT LINEAR REGULATOR General Description The AZ2940 is a low dropout three-terminal regulator with a typical dropout of 280mV at 1A output current. The AZ2940 provides current limit and thermal shutdown. On-chip thermal shutdown provides protection against any combination of high current and ambient temperature that would create excessive junction temperatures. The AZ2940 has 2.5V, 3.3V and 5.0V versions. The AZ2940 is available in the industry standard TO220-3, TO-263-3 and TO-252-2 (1) power packages. AZ2940 Features · · · · · · · Minimum Guaranteed Output Current: 1A Dropout Voltage at IOUT=1A: 280mV Output Accuracy: ± 1% Low Ground Current Internal Current Limit and Thermal Protection Reversed-battery and Reversed-lead Insertion Protection Fast Transient Response Applications · · · · · · · LCD TV Set Top Box LCD Monitor SMPS Post Regulator Laptop, Palmtop and Notebook Portable Instrumentation USB Power Supply www.DataSheet4U.com TO-220-3 TO-263-3 TO-252-2 (1) Figure 1. Package Types of AZ2940 Mar. 2007 Rev. 1. 6 1 BCD Semiconductor Manufacturing Limited Data Sheet 1A ULTRA LOW DROPOUT LINEAR REGULATOR Pin Configuration AZ2940 T Package (TO-220-3) S Package (TO-263-3) D Package (TO-252-2 (1)) 3 2 1 VOUT GND VIN 3 2 1 VOUT GND VIN 3 2 1 VOUT GND VIN Figure 2. Pin Configuration of AZ2940 (Top View) Pin Description Pin Number 1 2 3 Pin Name VIN GND VOUT Unregulated Input. Function Ground pin. This pin and TAB are internall...