LM109QML - 5-Volt Regulator

LM109QML是TI德州仪器公司的一款单通道LDO产品，LM109QML是5-Volt Regulator，本站介绍了LM109QML的封装应用图解、特点和优点、功能等，并给出了与LM109QML相关的TI元器件型号供参考。

LM109QML - 5-Volt Regulator - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The LM109 series are complete 5V regulators fabricated on a single silicon chip. They are designed for local regulation on digital logic cards, eliminating the distribution problems association with single-point regulation. The devices are available in two standard transistor packages. In the solid-kovar PFM header, it can deliver output currents in excess of 200 mA, if adequate heat sinking is provided. With the TO power package, the available output current is greater than 1A.

The regulators are essentially blowout proof. Current limiting is included to limit the peak output current to a safe value. In addition, thermal shutdown is provided to keep the IC from overheating. If internal dissipation becomes too great, the regulator will shut down to prevent excessive heating.

Considerable effort was expended to make these devices easy to use and to minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response somewhat. Input bypassing is needed, however, if the regulator is located very far from the filter capacitor of the power supply. Stability is also achieved by methods that provide very good rejection of load or line transients as are usually seen with TTL logic.

Although designed primarily as a fixed-voltage regulator, the output of the LM109 series can be set to voltages above 5V, as shown. It is also possible to use the circuits as the control element in precision regulators, taking advantage of the good current-handling capability and the thermal overload protection.

产品特性

Specified to be Compatible, Worst Case, with TTL and DTL
Output Current in Excess of 1A
Internal Thermal Overload Protection
No External Components Required

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