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Description

The LD1085 is a LOW DROP Voltage Regulator able to provide up to 3A of Output Current. Dropout is guaranteed at a maximum of 1.2V at the maximum output current, decreasing at lower loads. The LD1085 is pin to pin compatible with the older 3-terminal adjustable regulators, but has A 2.85V 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 LD1085 quiescent current flows into the load, so increase efficiency. Only a 10?F minimum capacitor is need for stability.

The device is supplied in TO-220, TO-220FP, DPAK, D2PAK and D2PAK/A. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ¡À1 at 25¡ãC.

Features

¡ö Typical dropout 1.3V (at 3A)

¡ö Three terminal adjustable or fixed output voltage 1.5V, 1.8V, 2.5V, 3.3V, 5V, 12V.

¡ö Guaranteed output current up to 3A

¡ö Output tolerance ¡À1 at 25¡ãC and ¡À2 in full temperature range

¡ö Internal power and thermal limit

¡ö Wide operating temperature range -40¡ãC to 125¡ãC

¡ö Package available: TO-220, TO-220FP, DPAK, D2PAK, D2PAK/A

¡ö Pinout compatibility with standard adjustable VREG