TPS7418集成電路（IC）的線性+開(kāi)關(guān)穩(wěn)壓器規(guī)格書(shū)PDF中文資料

TPS7418屬于集成電路（IC）的線性+開(kāi)關(guān)穩(wěn)壓器。由德州儀器制造生產(chǎn)的TPS7418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(wú)論負(fù)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(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開(kāi)關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。

Fast Transient Response Using Small

Output Capacitor (10 mF)

200-mA Low-Dropout Voltage Regulator

Available in 1.5-V, 1.8-V, 2.5-V, 3-V and 3.3-V

Dropout Voltage Down to 170 mV at 200 mA

(TPS7433)

3% Tolerance Over Specified Conditions

8-Pin SOIC Package

Thermal Shutdown Protection

description

This device is designed to have a fast transient response and be stable with 1-mF capacitors. This combination

provides high performance at a reasonable cost.

Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 170 mV

at an output current of 200-mA for the TPS7433). This LDO family also features a sleep mode; applying a TTL

high signal to EN (enable) shuts down the regulator, reducing the quiescent current to less than 1 mA at

TJ = 25°C.

The TPS74xx is offered in 1.5-V, 1.8-V, 2.5-V, 3-V, and 3.3-V. Output voltage tolerance is specified as a

maximum of 3% over line, load, and temperature ranges. The TPS74xx family is available in 8 pin SOIC

package.