LD1085C数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The LD1085C is a low-drop voltage regulator, providing up to 3 A of output current.The dropout is guaranteed to be as low as 1.5 V at the maximum current and it decreases at lower loads. The LD1085C is pin-to-pin compatible with the old 3-terminal adjustable regulators, but it has better performances in terms of drop and output tolerance.
Unlike PNP regulators, where a part of the output current is wasted as quiescent current, the LD1085C quiescent current flows into the load, so to increase the efficiency. A minimum capacitor of 10 μF is needed for stability.
The device is supplied in DPAK. The on-chip trimming allows the regulator to reach a very tight output voltage tolerance, within ± 2% at 25 °C.

特性 Features

• Typical dropout 1.3 V (at 3 A)
• 3-terminal adjustable output voltage
• Guaranteed output current up to 3 A
• Output tolerance ± 2% at 25 °C and ± 3% in full temperature range
• Internal power and thermal limit
• Wide operating temperature range -40 °C to 125 °C
• Package available: DPAK
• Pinout compatibility with standard adjustable VREG

简介

LD1085C属于集成电路（IC）的线性+开关稳压器。由制造生产的LD1085C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。