Nat Semi LP2957IS LDO 5V Voltage Regulator DDPAK SMD

Manufactured by National Semiconductor - LP2957IS - TO-263-5/DDPAK SMD Package

DESCRIPTION

The LP2957 is a 5V micropower voltage regulator with electronic shutdown, error flag, very low quiescent current (150 µA typical at 1 mA load), and very low dropout voltage (470 mV typical at 250 mA Output load current).
Output can be wired for snap-on/snap-off operation to eliminate transition voltage states where µP operation may be unpredictable.
Regulation Output crowbar (50 mA typical pull-down current) will bring down the output quickly when the regulator snaps off or when the shutdown function is activated.
The part has tight line and load regulation (0.04% typical) and low output temperature coefficient (20 ppm/°C typical).
The accuracy of the 5V output is ensured at room temperature and over the full operating temperature range.

FEATURES

• 5V Output within 1.4% Over Temperature (A Grade)
• Easily Programmed for Snap-On/Snap-Off Output
• Ensured 250 mA Output Current Output
• Extremely Low Quiescent Current
• Low Input-Output Voltage Required for Regulation Output
• Reverse Battery Protection
• Extremely Tight Line and Load Regulation
• Very Low Temperature Coefficient
• Current and Thermal Limiting
• Error Flag Signals when Output is out of Regulation

APPLICATIONS

• High-Efficiency Linear Regulator
• Battery-Powered Regulator