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參數(shù)資料
| 型號： | AAT1110 |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | Fast Transient 800mA Step-Down Converter |
| 中文描述： | 快速瞬態(tài)800mA的降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 13/19頁 |
| 文件大?。?/td> | 710K |
| 代理商： | AAT1110 |
AAT1110
Fast Transient 800mA Step-Down Converter
1110.2006.04.1.0
13
The maximum output capacitor RMS ripple current
is given by:
Dissipation due to the RMS current in the ceramic
output capacitor ESR is typically minimal, resulting in
less than a few degrees rise in hot-spot temperature.
Adjustable Output Resistor Selection
For applications requiring an adjustable output volt-
age, the 0.6V version can be externally pro-
grammed. Resistors R1 and R2 of Figure 5 program
the output to regulate at a voltage higher than 0.6V.
To limit the bias current required for the external
feedback resistor string while maintaining good
noise immunity, the minimum suggested value for
R2 is 59k
Ω
. Although a larger value will further
reduce quiescent current, it will also increase the
impedance of the feedback node, making it more
sensitive to external noise and interference. Table 2
summarizes the resistor values for various output
voltages with R2 set to either 59k
Ω
for good noise
immunity or 221k
Ω
for reduced no load input current.
R1 = V
·
R2 = 0.6V
·
59k
Ω
= 88.5k
Ω
REF
V
OUT
1.5V
1
2
3
V
OUT
· (V
IN(MAX)
- V
OUT
)
L
·
F
·
V
IN(MAX)
RMS(MAX)
I
=
·
·
Figure 2: AAT1110 Evaluation Board
Top Side.
Figure 3: Exploded View of Evaluation
Board Top Side Layout.
Figure 4: AAT1110 Evaluation Board
Bottom Side.
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| AAT1110_06 | Fast Transient 800mA Step-Down Converter |
| AAT1110IJS-0.6-T1 | Fast Transient 800mA Step-Down Converter |
| AAT1120 | 500mA Step-Down Converter |
| AAT1120IES-0.6-T1 | 500mA Step-Down Converter |
| AAT1121 | 1.5MHz, 250mA Step-Down Converter |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1110_06 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Fast Transient 800mA Step-Down Converter |
| AAT1110IJS-0.6-T1 | 制造商:Skyworks Solutions Inc 功能描述:DC TO DC CONVERTER |
| AAT1110IJS-3.3-T1 | 功能描述:直流/直流開關轉(zhuǎn)換器 2.7-5.5Vin 800mA 1.4MHz Step-Down RoHS:否 制造商:Monolithic Power Systems (MPS) 最大輸入電壓: 開關頻率: 輸出電壓: 輸出電流: 輸出端數(shù)量: 最大工作溫度: 安裝風格: |
| AAT1110-S | 制造商:AAT 制造商全稱:AAT 功能描述:ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| AAT1110-S-T | 制造商:AAT 制造商全稱:AAT 功能描述:ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
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