ZHCSNR6G June 1999 – March 2023 LM2576 , LM2576HV
PRODUCTION DATA
請(qǐng)參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
To maintain stability, the regulator input pin must be bypassed with at least a 100-μF electrolytic capacitor. The capacitor leads must be kept short, and placed near the regulator.
If the operating temperature range includes temperatures below ?25°C, the input capacitor value can need to be larger. With most electrolytic capacitors, the capacitance value decreases and the ESR increases with lower temperatures and age. Paralleling a ceramic or solid tantalum capacitor increases the regulator stability at cold temperatures. For maximum capacitor operating lifetime, the RMS ripple current rating of the capacitor must be greater than:
Where for a buck regulator:
Where for a buck-boost regulator: