參數(shù)資料
型號： AAT1143IJS-1.6-T1
廠商： Advanced Analogic Technologies, Inc.
英文描述： GT 22C 18#16 4#12 SKT RECP
中文描述： 1MHz的400mA的降壓轉(zhuǎn)換器
文件頁數(shù)： 15/20頁
文件大?。?/td> 594K
代理商： AAT1143IJS-1.6-T1
Step-Down Converter Design Example
Specifications
V
O
= 1.8V @ 400mA (adjustable using 0.6V version), Pulsed Load
I
LOAD
= 300mA
V
IN
= 2.7V to 4.2V (3.6V nominal)
F
S
= 1.0MHz
T
AMB
= 85°C
1.8V Output Inductor
(see Table 1)
For Sumida inductor CDRH3D16, 4.7μH, DCR = 105m
.
1.8V Output Capacitor
V
DROOP
= 0.2V
1
2
3
1
1.8V · (4.2V - 1.8V)
4.7
H · 1.0MHz · 4.2V
2
3
RMS
I
L1 · F · V
IN(MAX)
= ·
·
3 ·
I
LOAD
V
DROOP
· F
S
3 · 0.3A
0.2V · 1MHz
C
OUT
=
=
= 4.5
μ
F
· = 63mArms
·
(V
O
) · (V
IN(MAX)
- V
O
)
=
P
esr
= esr · I
RMS2
= 5m
· (63mA)
2
= 20
μ
W
V
V
1.8
V
1.8V
I
L1
= L1
1 - V
F
IN
4.7
μ
H
1.0MHz 1 - = 218mA
4.2V
I
PKL1
= I
O
+
I
L1
= 0.4A + 0.11A = 0.51A
2
P
L1
= I
O
2
DCR = 0.4A
2
105m
= 17mW
L1 = 3 A
V
O2
= 3 A
1.8V = 5.4
μ
H
μ
sec
μ
sec
AAT1143
1MHz 400mA Step-Down Converter
1143.2005.09.1.7
15
相關(guān)PDF資料
PDF描述
AAT1143IJS-1.8-T1 GT 22C 18#16 4#12 SKT RECP
AAT1143IJS-2.5-T1 Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:3; Connector Shell Size:28; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight
AAT1143IJS-3.3-T1 Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:3; Connector Shell Size:28; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight
AAT1145 1.2A Step-Down Converter
AAT1145IDE-0.6-T1 1.2A Step-Down Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AAT1143IJS-2.5-T1 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz 400mA Step-Down Converter
AAT1143IJS-3.3-T1 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1MHz 400mA Step-Down Converter
AAT1145 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5A Step-Down Converter
AAT1145_08 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:1.5A Step-Down Converter
AAT1145IDE-0.6-T1 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER
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