LD1085V18屬于集成電路（IC）的線性+開關穩(wěn)壓器。由意法半導體集團制造生產(chǎn)的LD1085V18穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

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 10μF 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 ±1 at 25°C.

Features

■ Typical dropout 1.3V (at 3A)

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

■ Guaranteed output current up to 3A

■ 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, TO-220FP, DPAK, D2PAK, D2PAK/A

■ Pinout compatibility with standard adjustable VREG