TPPM0111集成電路（IC）的線性+開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

TPPM0111屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由德州儀器制造生產(chǎn)的TPPM0111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(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。

Dual Voltage Output, 3.3 V ±3% and

1.5 V ±2%

3.3-V Output Within 2 V of 1.5-V Output

Under All Conditions

1.5-A Load Current Capability on 3.3-V

Output

300-mA Load Current Capability on

1.5-V Output

Overcurrent Protection for Both

Outputs

Thermally-Enhanced Packaging

Concept for Efficient Heat Management

Thermal Shutdown to Protect Device

During Excessive Power Dissipation

description

The TPPM0111 is a power source intended for use in systems that have a single 5-V input source and require

dual, linearly-regulated, low-dropout voltage sources. The outputs must track within 2 V of each other during

all conditions and modes of operation. Each output is protected against overcurrent conditions. In the event that

one of the outputs is shorted to ground, the other output must maintain a voltage output differential of less than

2 V compared to the output with the abnormal condition.

The 3.3-V ±3% regulated output is capable of driving loads of 1.5 A, and the 1.5-V ±2% regulated output is

capable of driving loads of 300 mA under all normal operating conditions. The device is available in a

PowerPAD thermally-enhanced package for efficient heat management, and requires a copper plane to

dissipate the heat.