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

LD1085D2M33R属于集成电路（IC） > 线性 + 开关稳压器。意法半导体（ST）集团制造生产的LD1085D2M33R稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。