謝謝達爾聞的獎品！真的是好久沒用中過獎了，很開心~

喜歡電子技術(shù)的童鞋可以關(guān)注下：達爾聞(https://space.bilibili.com/430777205)

獎品是一塊TI的線性穩(wěn)壓芯片的評估模塊：TPS74401EVM-118(TPS74401 Evaluation Module)

快遞很給力用的順豐，直接送到家。行動不便的我省去了冒死拿快遞的痛苦，蕪湖~

收到快遞，挺大一個盒子，心想一個電源板能有多大？！

然后打開，嗯，這個大小才正常么~

?

TPS 74401好小啊，5 mm x 5 mm x 1 mm QFN的封裝。

官網(wǎng)介紹：https://www.ti.com/tool/TPS74401EVM-118

Overview

The TPS74401EVM-118 evaluation module (EVM) is designed to help the user easily evaluate and test the operation and functionality of the TPS74401 LDO linear regulator. The EVM uses the TPS74401, 3?A linear regulator with programmable soft-start and integrated power good (PG). Refer to the User’s Guide for setup instructions for the hardware, a schematic diagram, a bill of materials (BOM), and PCB layout drawings for the EVM.

• Supports input voltages as low as 0.9?V with external bias supply due to ultra-low dropout

• Adjustable output (0.8?V to 3.6?V) up to 3?A

• Soft-start time set by external capacitor

• Stable with any or no output capacitor

• 1% accuracy over line, load and temperature

• Open drain power good (PG)

• 5?mm x 5?mm x 1?mm QFN package

看介紹還是很不錯的！有時間測試看看~

……………………

等等！我艸，突然意識到，這玩意兒是美國產(chǎn)！趕緊把包裝盒扔掉，去好好洗手！[喜極而泣]

酒精消毒紙巾在哪？！啊~~~