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參數(shù)資料
| 型號(hào)： | AAT1110IJS-0.6-T1 |
| 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(yè)數(shù)： | 9/19頁(yè) |
| 文件大?。?/td> | 710K |
| 代理商： | AAT1110IJS-0.6-T1 |
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AAT1110
Fast Transient 800mA Step-Down Converter
1110.2006.04.1.0
9
Functional Block Diagram
EN
LX
Err
A.
Logic
DH
DL
PGND
VIN
OUT
AGND
Voltage
Reference
INPUT
See note
Note: For adjustable version, the internal feedback divider is omitted and the OUT pin is tied directly
to the internal error amplifier.
Functional Description
The AAT1110 is a high performance 800mA 1.4MHz
monolithic step-down converter. It has been
designed with the goal of minimizing external com-
ponent size and optimizing efficiency over the com-
plete load range. Apart from the small bypass input
capacitor, only a small L-C filter is required at the out-
put. Typically, a 4.7μH inductor and a 4.7μF ceramic
capacitor are recommended (see table of values).
The fixed output version requires only three external
power components (C
IN
, C
OUT
, and L). The
adjustable version can be programmed with external
feedback to any voltage, ranging from 0.6V to the
input voltage. An additional feed-forward capacitor
can also be added to the external feedback to pro-
vide improved transient response (see Figure 1).
At dropout, the converter duty cycle increases to
100% and the output voltage tracks the input volt-
age minus the R
DSON
drop of the P-channel high-
side MOSFET.
The input voltage range is 2.7V to 5.5V. The con-
verter efficiency has been optimized for all load
conditions, ranging from no load to 800mA.
The internal error amplifier and compensation pro-
vides excellent transient response, load, and line
regulation. Soft start eliminates any output voltage
overshoot when the enable or the input voltage is
applied.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AAT1120 | 500mA Step-Down Converter |
| AAT1120IES-0.6-T1 | 500mA Step-Down Converter |
| AAT1121 | 1.5MHz, 250mA Step-Down Converter |
| AAT1121_07 | 1.5MHz, 250mA Step-Down Converter |
| AAT1121IES-0.6-T1 | 1.5MHz, 250mA Step-Down Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1110IJS-3.3-T1 | 功能描述:直流/直流開關(guān)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(guān)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(fēng)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 |
| AAT1110-T2 | 制造商:AAT 制造商全稱:AAT 功能描述:ONE-CHANNEL STEP-DOWN PWM CONTROLLER |
| AAT1110-T2-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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