L7809AB集成電路（IC）的線性+開關穩(wěn)壓器規(guī)格書PDF中文資料

L7809AB屬于集成電路（IC）的線性+開關穩(wěn)壓器。由意法半導體集團制造生產的L7809AB穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個最小量，并且在工作時會將輸入端的任何多余電壓轉換為熱量。對于大多數(shù)應用而言，雖然這種穩(wěn)壓器的效率低于開關模式的穩(wěn)壓器，但它們通常更適合對噪聲高度敏感的應用。

Description

The L7800A series of three terminal positive regulators is available in TO-220, TO-220FP, and D2PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problem associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current, Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents.

Feature summary

■ Output current in excess of 1A

■ Output voltages of 5; 6; 8; 9; 12; 15; 18; 20; 24V

■ Thermal overload protection

■ Output transition SOA protection

■ 2 Output voltage tolerance

■ Guaranteed in extended temperature range