STMicroelectronics LD1084V12

Description
The LD1084xx is a low drop voltage regulator capable of providing up to 5 A of output current. Dropout is guaranteed at a maximum of 1.5 V at the maximum output current, decreasing at lower loads. The LD1084xx is pin to pin compatible with the older 3-terminal adjustable regulators, but has better performances in terms of drop and output tolerance. A 2.85 V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1084xx quiescent current flows into the load, so increase efficiency. Only a 10 µF minimum capacitor is needed for stability.

Features
Low drop positive voltage regulator adjustable and fixed
Typical dropout 1.3 V (at 5 A)
Three terminal adjustable or fixed output voltage 2.5 V, 5V, 12 V
Guaranteed output current up to 5 A
Output tolerance ± 1% at 25 °C and ± 2% in full temperature range
Internal power and thermal limit
Wide operating temperature range -40 °C to 125 °C
Package available: TO-220
Pinout compatibility with standard adjustable VREG

Applications
SCSI-2 active termination
Post regulators for switching power supplies
Battery chargers
High efficiency linear regulators