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AAT1230ITP-1-T1 参数 Datasheet PDF下载

AAT1230ITP-1-T1图片预览
型号: AAT1230ITP-1-T1
PDF下载: 下载PDF文件 查看货源
内容描述: 18V 100毫安升压转换器 [18V 100mA Step-Up Converter]
分类和应用: 转换器稳压器开关式稳压器或控制器电源电路开关式控制器升压转换器
文件页数/大小: 21 页 / 533 K
品牌: ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
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AAT1230/1230-1  
18V 100mA Step-Up Converter  
From Switching Frequency vs. IOUT curves estimated switching frequency of AAT1230/1230-1 with VOUT = 16V  
and IOUT = 100mA, FSW = 800kHz.  
IOUT  
1 - DMAX  
DMAX  
·
·
FS L)  
VIN(MIN)  
·
IPEAK  
=
=
+
(2  
0.100  
1 - 0.840  
0.834 (2.7V)  
0.8M 2.2µH  
+
2
·
·
= 0.625 + 0.640  
= 1.265A = 1265mA  
IPEAK  
1265  
3
IRMS  
=
=
= 730mA  
3
For Coiltronics inductor SD3814-2R2, ISAT = 1.90A, IRMS(MAX) = 1.43A and DCR = 77mΩ.  
PLOSS(INDUCTOR) = IRMS2 · DCR  
= (0.730)2 (0.077)  
= 0.041W  
= 41mW  
16V Output Capacitor  
ΔVOUT = 0.1V  
IOUT · DMAX  
FS · ΔVOUT  
(0.1A) (0.84)  
(0.8kHz) (0.1V)  
COUT  
=
=
= 1.05µF; use 2.2µF/25V MLC  
1230.2006.10.1.4  
17  
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