LD1085CDT集成电路（IC）的线性+开关稳压器规格书PDF中文资料

LD1085CDT属于集成电路（IC）的线性+开关稳压器。由意法半导体集团制造生产的LD1085CDT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。

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 1.5V 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 better performances in term of drop and output tolerance.

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 DPAK. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within ±2 at 25°C.

■ TYPICAL DROPOUT 1.3V (AT 3A)

■ THREE TERMINAL ADJUSTABLE OR FIXED OUTPUT VOLTAGE 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 3.6V, 5V, 8V, 9V, 12V.

■ GUARANTEED OUTPUT CURRENT UP TO 3A

■ OUPUT 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