參數(shù)資料
型號(hào): AAT2511_0605
廠商: Advanced Analog Technology,lnc.
英文描述: Dual 600mA, 1MHz Step-Down DC/DC Converter
中文描述: 雙600mA的,1MHz的降壓型DC / DC轉(zhuǎn)換器
文件頁數(shù): 15/20頁
文件大?。?/td> 603K
代理商: AAT2511_0605
2.5V Output Capacitor
1.8V Output Capacitor
Input Capacitor
Input Ripple V
PP
= 25mV.
I
O1
+ I
O2
2
RMS(MAX)
I
P = esr
·
I
RMS
2
= 5m
Ω
·
(0.6A)
2
= 1.8mW
=
= 6Arms
C
IN
=
=
= 15.78
μ
F
1
- ESR
·
4
·
F
S
I
O1
+
I
O2
V
PP
1
- 5m
Ω
·
4
·
1MHz
1.2A
25mV
1
2
3
1
1.8V · (4.2V - 1.8V)
4.7
H · 1.0MHz · 4.2V
2
3
RMS(MAX)
I
L · F · V
IN(MAX)
=
·
·
3 ·
Δ
I
LOAD
V
DROOP
· F
S
3 · 0.6A
0.2V · 1MHz
C
OUT
=
=
= 9
μ
F
· = 63mArms
·
(V
OUT
) · (V
IN(MAX)
- V
OUT
)
=
P
esr
= esr · I
RMS2
= 5m
Ω
· (63mA)
2
= 20
μ
W
1
2
3
1
2.5V · (4.2V - 2.5V)
10
H · 1MHz · 4.2V
2
3
RMS(MAX)
I
L · F · V
IN(MAX)
=
·
·
3 ·
Δ
I
LOAD
V
DROOP
· F
S
3 · 0.6A
0.2V · 1MHz
C
OUT
=
=
= 9
μ
F
· = 29mArms
·
(V
OUT
) · (V
IN(MAX)
- V
OUT
)
=
P
esr
= esr · I
RMS2
= 5m
Ω
· (29mA)
2
= 4.2
μ
W
AAT2511
Dual 600mA, 1MHz Step-Down DC/DC Converter
2511.2006.05.1.4
15
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