L4987CPT50 (*)

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

The L4987 is a very low drop regulator available in PPAK. The very low drop-voltage (0.5V Max at 200 mA) and the very low quiescent current make L4987 particularly suitable for low noise, low power applications, and in battery powered systems. The input dump protection up to 40V makes it ideal for automotive applications. a shutdown Logic Control function is available (pin2, TTL compatible). This means that when L4987 is used as a local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. The regulator employs an output pin (open collector) providing a logic signal when the pass transistor is in saturation at low input voltage, this signal can be used to prevent the pop-up phenomenon in the car radio. In battery powered systems (the cellular phone, notebook) it is possible to use the flag to monitor the battery charge status through the dropout of the regulator.