TLE4252D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 TLE4252D is a monolithic integrated low-drop voltage tracking regulator in a very small SMD package PG-TO252-5-11. It is designed to supply off-board systems, e.g. sensors in engine management systems under the severe conditions of automotive applications. Therefore the device is equipped with additional protection functions against reverse polarity and short circuit to GND and battery. With supply voltages up to 40 V, the output voltage follows a reference voltage applied at the adjust input with high accuracy. The reference voltage applied directly to the adjust input or by an e.g. external resistor divider can be 1.5 V minimum. The output is able to drive loads up to 250 mA. The TLE 4252 tracker can be switched into stand-by mode to reduce the current consumption to very low values. This feature makes the IC suitable for low power battery applications.

特性 Features

• Output tracking tolerance to reference ≤ ±0.2%
• Output voltage adjust down to 1.5 V
• 250 mA output current capability
• Enable function
• Very low current consumption in OFF mode
• Wide operation range: up to 40 V
• Wide temperature range: -40 °C ≤ T j ≤ 150 °C
• Output protected against short circuit to GND and Battery
• Over temperature protection
• Reverse polarity proof
• Green Product (RoHS compliant)
• AEC Qualified

优势:
• Efficient and accurate voltage replication
• Heat distribution in the system
• Robust tracking supply

应用 Application

• Sensor Supply
• Heat distribution
• Secondary µcontroller supply

简介

TLE4252D属于集成电路（IC）的线性+开关稳压器。由制造生产的TLE4252D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。