參數(shù)資料
型號(hào): AAT1153IDE-0.6-T1
廠商: Advanced Analogic Technologies, Inc.
英文描述: 2A Step-Down Converter
中文描述: 第2A降壓轉(zhuǎn)換器
文件頁(yè)數(shù): 18/20頁(yè)
文件大?。?/td> 689K
代理商: AAT1153IDE-0.6-T1
AAT1153
2A Step-Down Converter
PRODUCT DATASHEET
18
1153.2007.11.1.1
w w w . a n a l o g i c t e c h . c o m
Input Capacitor
Input ripple V
PP
= 25mV
C
IN(MIN)
= = = 13.9μF; use 22μF
- ESR
·
4
·
f
S
I
O
2
1
V
PP
1
- 0.01
·
4
·
1.2
·
10
6
0.025
I
O
2
RMS
I
P
CIN
= ESR
·
I
RMS
2
= 0.01
·
1
2
= 10mW
2
2
=
=
= 1Arms
AAT1153 Losses
P
TOTAL
= I
O
2
· R
DS(ON)P
· D + I
O
2
· R
DS(ON)N
· (1 - D) + (t
SW
· f
S
· I
O
) · V
IN
= 2
2
· 0.135 ·
+ 2
2
· 0.095 · 1 -
1.8
4.2
+ (5 · 10
-9
· 1.2 · 10
6
· 2) · 4.2 = 498.9mW
1.8
4.2
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