LM317M - 3 端子、500mA 可调节正电压稳压器

LM317M是TI德州仪器公司的一款单通道LDO产品，LM317M是3 端子、500mA 可调节正电压稳压器，本站介绍了LM317M的封装应用图解、特点和优点、功能等，并给出了与LM317M相关的TI元器件型号供参考。

LM317M - 3 端子、500mA 可调节正电压稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The LM317M is an adjustable 3-terminal positive voltage regulator capable of supplying more than 500-mA over an output-voltage range of 1.25-V to 37-V. The LM317M is exceptionally easy to use and requires only two external resistors to set the output. Furthermore, both line and load regulation are better than standard fixed regulators.

In addition to having higher performance than fixed regulators, the LM317M includes on-chip current limiting, thermal-overload protection, and safe- operating-area protection. All overload protection remains fully functional if the ADJUST terminal is disconnected.

The LM317 is a floating regulator meaning there is no device ground terminal. Quiescent current flows to the load instead of being wasted flowing to ground. Regulated output voltage of hundreds of volts is possible if the maximum input to output differential does not exceed 40-V at any time. Device can be used as a floating current source controlled by a single resistor.

Normally, no capacitors are needed unless the device is more than six inches from the input filter capacitors, in which case an input bypass capacitor of any type is needed. An optional electrolytic or tantalum output capacitor can be added to improve transient response. Ceramic output capacitors can be used but output ringing may be present on transients. The ADJUST terminal can be bypassed with any type of capacitor to achieve high ripple-rejection ratios, which are difficult to achieve with standard three-terminal regulators.

产品特性

Output Voltage Range Adjustable from 1.25-V to 37-V
Output Current Greater Than 500-mA
Internal Short-Circuit Current Limiting
Thermal-Overload Protection
Output Safe-Area Compensation
Q Devices Meet Automotive Performance Requirements
Customer-Specific Configuration Control Can Be Supported for Q Devices Along With Major-Change Approval

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