參數(shù)資料
型號(hào): SLF12575T-1R2N8R2
廠商: National Semiconductor Corporation
英文描述: N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages
中文描述: N溝道場(chǎng)效應(yīng)管同步降壓穩(wěn)壓控制器輸出電壓低
文件頁(yè)數(shù): 16/22頁(yè)
文件大?。?/td> 602K
代理商: SLF12575T-1R2N8R2
Example Circuits
(Continued)
The circuits in
Figure 6
are intended for ADSL applications,
where the high switching frequency keeps noise out of the
data transmission range. In this design, the 1.8 and 3.3V
outputs come up simultaneously by using the same softstart
capacitor. Because two current sources now charge the
same capacitor, the capacitance must be doubled to achieve
the same softstart time. (Here, 40nF is used to achieve a
5ms softstart time.) A common softstart capacitor means
that, should one circuit enter current limit, the other circuit
will also enter current limit. In addition, if both circuits are
built with the LM2727, a UVP or OVP fault on one circuit will
cause both circuits to latch off. The additional compensation
components Rc2 and Cc3 are needed for the low ESR, all
ceramic output capacitors, and the wide (3x) range of Vin.
20049407
FIGURE 6. 1.8V and 3.3V, 1A, 1.4MHz, Simultaneous
L
www.national.com
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SLF12575T-1R2N8R2-H 功能描述:固定電感器 1.2uH 8.2A RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類(lèi)型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
SLF12575T-1R2N8R2-PF 功能描述:固定電感器 SMD 1.2uH 8.2amps RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類(lèi)型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
SLF12575T-220M4R0 制造商:TDK CORPORATION OF AMERICA 功能描述:Ind Power Shielded Wirewound 22uH 20% 1KHz 4A T/R
SLF12575T-220M4R0-H 功能描述:固定電感器 22uH 4.0A RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類(lèi)型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm
SLF12575T-220M4R0-PF 功能描述:固定電感器 SMD 22uH 4.0amps RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類(lèi)型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm