CS8122集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

CS8122屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由安森美半導體公司制造生產(chǎn)的CS8122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(zhuǎn)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(guān)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。

The CS8122 is a precision 5.0 V linear regulator capable of sourcing in excess of 750 mA. The RESET’s delay time is externally programmed using a discrete RC network. During power up, or when the output goes out of regulation, the RESET lead remains in the low state for the duration of the delay. This function is independent of the input voltage and will function correctly as long as the output voltage remains at or above 1.0 V. Hysteresis is included in the Delay and the RESET comparators to improve noise immunity. A latching discharge circuit is used to discharge the delay capacitor when it is triggered by a brief fault condition.

The regulator is protected against a variety of fault conditions: i.e. reverse battery, overvoltage, short circuit and thermal runaway conditions. The regulator is protected against voltage transients ranging from ?50 V to +40 V. Short circuit current is limited to 1.2 A (typ).

The CS8122 is an improved replacement for the CS8126 and features a tighter tolerance on its output voltage (2.0 vs. 4.0).

The CS8122 is packaged in a 5 lead TO?220 with copper tab. The copper tab can be connected to a heat sink if necessary.

Features

? 5.0 V ±2.0 Regulated Output

? Low Dropout Voltage (0.6 V @ 0.5 A)

? 750 mA Output Current Capability

? Externally Programmed RESET Delay

? Fault Protection

? Reverse Battery

? 60 V Load Dump

? ?50 V Reverse Transient

? Short Circuit

? Thermal Shutdown

? Pb?Free Packages are Available*