常溫下,測試點(diǎn):板端電壓;測量電壓工具:萬用表;測量電流:電源和負(fù)載儀
輸入 | 輸出 | 效率 | ||||
輸入電壓 | 輸入電流 | 輸出電壓 | 輸出電流 | 效率 | ||
3.0V | 1.86A | 5.20 | 1A | 93.18% | ||
3.3V | 1.67A | 5.19 | 1A | 94.17% | ||
3.7V | 1.47A | 5.20V | 1A | 95.60% | ||
3.0V | 3.87A | 5.21V | 2A | 89.75% | ||
3.3V | 3.47A | 5.21V | 2A | 90.99% | ||
3.7V | 3.02A | 5.20V | 2A | 93.07% | ||
3.8V | 2.93A | 5.20V | 2A | 93.40% | ||
4V | 2.76A | 5.20V | 2A | 94.20% | ||
4.2V | 2.62A | 5.19V | 2A | 94.33% | ||
4.4V | 2.48A | 5.18V | 2A | 94.94% | ||
4.6V | 2.36A | 5.18V | 2A | 95.43% | ||
4.6V | 2.86A | 5.19V | 2.4A | 94.68% | ||
4.4V | 3.02A | 5.20V | 2.4A | 93.91% | ||
4.2V | 3.17A | 5.20V | 2.4A | 93.73% | ||
4V | 3.35A | 5.20V | 2.4A | 93.13% | ||
3.8V | 3.56A | 5.20 | 2.4A | 92.25% | ||
3.7V | 3.68A | 5.21V | 2.4A | 91.83% | ||
3.3V | 4.23A | 5.21V | 2.4A | 89.57% | ||
3V | 4.77A | 5.20V | 2.4A | 87.21% | ||
PS7526 是一顆高效同步升壓轉(zhuǎn)換芯片,內(nèi)部集成低阻抗功率 Mos。當(dāng)輸入在于 3.6V時,輸出電壓 5.0V,輸出電流 2.4A 時效率可達(dá) 90%。具有短路保護(hù)功能,內(nèi)部集成軟啟動電路,無需外部補(bǔ)償電
容,外部反饋網(wǎng)絡(luò)。 PS7526 為移動電源等高效升壓應(yīng)用領(lǐng)域提供了新的解決方案。
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短路測試:輸入3.53V, 輸出5V(空載);
操作:將GND街道輸出正極,現(xiàn)象:輸入電流變成230MA,解除短路連接,輸出恢復(fù)正常。
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