LM2990QML
FEATURES
- 2 5% Output Accuracy over Entire Operating Range
- Output Current in Excess of 1A
- Dropout Voltage Typically 0.6V at 1A Load
- Low Quiescent Current
- Internal Short Circuit Current Limit
- Internal Thermal Shutdown with Hysteresis
- Functional plement to the LM2940 Series
APPLICATIONS
- Post Switcher Regulator
- Local, On-Card, Regulation
- Battery Operated Equipment
DESCRIPTION
The LM2990 is a three-terminal, low dropout, 1 ampere negative voltage regulator available with a fixed output voltage of
- 5V.
The LM2990 uses new circuit design techniques to provide low dropout and low quiescent current. The dropout voltage at 1A load current is typically 0.6V and a ensured worst-case maximum of 1V over the entire operating temperature range. The quiescent current is typically 1 m A with 1A load current and an input-output voltage differential greater than 3V. A unique circuit design of the internal bias supply limits the quiescent current to only 9 m A (typical) when the...
