參數(shù)資料
型號(hào): LM2577S-12X
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: 6 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, PSSO5
封裝: PLASTIC, TO-263, SMT-5
文件頁數(shù): 31/31頁
文件大小: 1406K
代理商: LM2577S-12X
Electrical Characteristics—LM1577-ADJ, LM2577-ADJ (Continued)
Note 8: Junction to ambient thermal resistance with approximately 1 square inch of pc board copper surrounding the leads. Additional copper area will lower thermal
resistance further. See thermal model in “Switchers Made Simple” software.
Note 9: If the TO-263 package is used, the thermal resistance can be reduced by increasing the PC board copper area thermally connected to the package. Using
0.5 square inches of copper area,
θJA is 50C/W; with 1 square inch of copper area, θJA is 37C/W; and with 1.6 or more square inches of copper area, θJA is 32C/W.
Typical Performance Characteristics
Reference Voltage
vs Temperature
Reference Voltage
vs Temperature
01146834
01146835
Reference Voltage
vs Temperature
Reference Voltage
vs Supply Voltage
01146836
01146837
Reference Voltage
vs Supply Voltage
Reference Voltage
vs Supply Voltage
01146838
01146839
LM1577/LM2577
www.national.com
9
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