TPS75733屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由美國德州儀器公司制造生產(chǎn)的TPS75733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(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(yīng)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(yīng)用。

3-A Low-Dropout Voltage Regulator

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

Fixed-Output and Adjustable Versions

Open Drain Power-Good (PG) Status

Output (Fixed Options Only)

Dropout Voltage Typically 150 mV at 3 A

(TPS75733)

Low 125 μA Typical Quiescent Current

Fast Transient Response

3% Tolerance Over Specified Conditions for

Fixed-Output Versions

Available in 5-Pin TO?220 and TO?263

Surface-Mount Packages

Thermal Shutdown Protection

description

The TPS757xx family of 3-A low dropout (LDO) regulators contains four fixed voltage option regulators with

integrated power-good (PG) and an adjustable voltage option regulator. These devices are capable of supplying

3 A of output current with a dropout of 150 mV (TPS75733). Therefore, the device is capable of performing a

3.3-V to 2.5-V conversion. Quiescent current is 125 μA at full load and drops down to less than 1 μA when the

device is disabled. The TPS757xx is designed to have fast transient response for large load current changes.