LT1035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 LT1035 features two positive 5V regulators in the same package. The main regulator offers excellent performance while supplying load currents up to 3A, and the auxiliary regulator provides similar performance while supplying lighter loads of 75mA. The main regulator has the additional feature of being under the shutdown control of a logic signal. When the enable pin is taken to a low logic level, the main regulator shuts down and its output voltage goes to near 0V. During this command, the auxiliary output is unaffected by the main regulator's condition to provide a 5V output.

The main output has current and power limiting combined with thermal shutdown to make it virtually blowout proof. The auxiliary output is not affected by the thermal shutdown mechanism or the state of the main output, allowing it to be used as a back-up in case of overloads or shorts on the main supply.

The logic input of the LT1035 (enable pin) has a 1.6V threshold and can be driven from a high source impedance. This allows it to be driven by most logic families, including TTL and CMOS.

For a 1A version of the LT1035, please see the LT1005 data sheet. For a 12V output voltage version, consult the factory.

Applications

• Power Supply Sequencing

• Remote On/Off Power Control

• Selective System Power during Emergency Power Operation

• Memory Power Supply with Back-Up

特性 Features

• OBSOLETE: For Information Purposes Only. Contact Analog Devices for Potential Replacement.

• Two Regulated Outputs:
• +5V at 3A

• +5V at 75mA




• 2% Output Voltage Tolerance

• 66dB Ripple Rejection

• 0.7% Load Regulation

• TTL and CMOS Compatible Logic Control

• 100% Thermal Burn-In on All Devices

简介

LT1035属于集成电路（IC）的线性+开关稳压器。由制造生产的LT1035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。