- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄375163 > AAT1154IAS-3.3-T1 (Advanced Analogic Technologies, Inc.) 1MHz 3A Buck DC/DC Converter PDF資料下載
參數(shù)資料
| 型號(hào)： | AAT1154IAS-3.3-T1 |
| 廠商： | Advanced Analogic Technologies, Inc. |
| 英文描述： | 1MHz 3A Buck DC/DC Converter |
| 中文描述： | 1MHz的第3A降壓DC / DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 14/18頁(yè) |
| 文件大小： | 482K |
| 代理商： | AAT1154IAS-3.3-T1 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)當(dāng)前第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
AAT1154
1MHz 3A Buck DC/DC Converter
14
1154.2003.08.0.91
Figure 3. 3.3 Volt 3 Amp Output
Figure 4. 5 Volt Input 3.3 Volt Output
V
IN
= 5.0V, V
OUT
= 3.3V
Efficiency vs. Load Current
60
65
70
75
80
85
90
95
100
0.01
0.1
1
10
Output Current (A)
E
D1
B340LA
L1
1.5μH
C2
120μF
C1
10μF
VP
VCC
EN
GND
FB
LX
LX
VP
U1
AAT1154-3. 3
R1
100
C3
0.1μF
C3 0.1μF 0603ZD104M AVX
C4 Vishay Sprague 100μF 16V 595D107X0016C 100μF 16V
L1 CDRH6D28-1.5μH Sumida
D1 B340LA Diodes Inc.
R2
100k
C1 Murata 10μF 6.3V X5R GRM42-6X5R106K6.3
C2 Vishay120μF 6.3V 594D127X96R6R3C2T
C2 MuRata 100μF 6.3V GRM43-2 X5R 107M 100μF 6.3V (two or three in parallel
C2 TDK 100μF 6.3V C3325X5R0J107M 100μF 6.3V (two or three in parallel)
Vin 3.5V-5.5V
Vout 3.3V @ 3A
rtn
C4
100μF
Options
+
-
Adjustable Output
For applications requiring an output other than the
fixed outputs available, the 1V version can be pro-
grammed externally. Resistors R3 and R4 of figure 5
force the output to regulate higher than 1 Volt. For
accurate results (less than 1% error for all outputs)
select R4 to be 10k
. Once R4 has been selected
R3 can be calculated. For a 1.25 Volt output with R4
set to 10k R3 is 2.5k
.
R3 = (V
O
- 1) · R4 = 0.25 · 10k
= 2.5k
Input Capacitor
The input capacitor ripple is:
In the examples shown C1 is a ceramic capacitor
located as close to the IC as possible. C1 provides
the low impedance path for the sharp edges asso-
ciated with the input current. C4 may or may not be
required depending upon the impedance charac-
teristics looking back into the source. It serves to
dampen out any input oscillations that may arise
from a source that is highly inductive. For most
applications where the source has sufficient bulk
capacitance and is fed directly to the AA1154
through large PCB traces or planes it is not
required. When operating the AAT1154 evaluation
board on the bench C4 is required due to the
inductance of the wires running from the laborato-
ry power supply to the evaluation board.
1
1.42
O
RMS
I
O
IN
IN
V
V
I
Arms
V
V
=
· ·
-
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT1155IKS-1.0-T1 | 1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155IKS-1.8-T1 | 1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155IKS-2.5-T1 | 1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155IKS-3.3-T1 | 1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155 | 1MHz 2.5A Step-Down DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1155 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155_06 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155IKS-1.0-T1 | 制造商:SKYWORKS SOLUTIONS 功能描述:AAT1155 Series 5.5 V 1 MHz 2.5 A SMT Step-Down DC/DC Converter - MSOP-8 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT1155IKS-1.8-T1 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 2.5A Step-Down DC/DC Converter |
| AAT1155IKS-2.5-T1 | 制造商:ANALOGICTECH 制造商全稱(chēng):Advanced Analogic Technologies 功能描述:1MHz 2.5A Step-Down DC/DC Converter |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。