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參數(shù)資料
| 型號： | AAT2315_07 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | Dual 600mA Step-Down Converter with Synchronization |
| 中文描述： | 雙600mA降壓轉(zhuǎn)換器的同步 |
| 文件頁數(shù)： | 16/22頁 |
| 文件大?。?/td> | 693K |
| 代理商： | AAT2315_07 |
Design Example
Specifications
V
O1
2.5V @ 600mA (adjustable using 0.6V version), pulsed load
Δ
I
LOAD
= 300mA
V
O2
1.8V @ 600mA (adjustable using 0.6V version), pulsed load
Δ
I
LOAD
= 300mA
V
IN
2.7V to 4.2V (3.6V nominal)
F
S
1.7 MHz
T
AMB
85°C
1.8V V
O1
Output Inductor
(see table 1).
For Sumida CDRH2D11 2.2μH DCR = 98m
Ω
.
2.5V V
O2
Output Inductor
(see table 1).
For Sumida inductor CDRH2D11 3.3μH DCR = 123m
Ω
.
V
V
2.5
V
2.5V
Δ
I2 =
1 - =
1 - = 230mA
L
F
V
IN
3.3μH
1.7MHz
4.2V
I
PK2
= I
O2
+
Δ
I2 = 0.4A + 0.115A = 0.515A
2
P
L2
= I
O2
2
DCR = 0.6A
2
123m
Ω
= 44mW
L1 = 1.2 A
V
O1
= 1.2 A
2.5V = 3.3μH
μs
μs
V
V
2.5
V
2.5V
Δ
I1 =
1 - =
1 - = 230mA
L
F
V
IN
3.3μH
1.7MHz
4.2V
I
PK1
= I
O1
+
Δ
I1 = 0.4A + 0.115A = 0.515A
2
P
L1
= I
O1
2
DCR = 0.6A
2
123m
Ω
= 44mW
L1 = 1.2 A
V
O1
= 1.2 A
1.8V = 2.2μH
μs
μs
AAT2513
Dual 600mA Step-Down
Converter with Synchronization
16
2513.2007.04.1.1
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