參數(shù)資料
型號(hào)： AAT2500M
廠商： Advanced Analogic Technologies, Inc.
英文描述： 400mA Step-Down Converter and 300mA LDO
中文描述： 400mA的降壓轉(zhuǎn)換器和300mA的LDO
文件頁(yè)數(shù)： 16/22頁(yè)
文件大?。?/td> 547K
代理商： AAT2500M
AAT2500M
400mA Step-Down Converter and 300mA LDO
16
2500M.2007.06.1.0
is 59k
. 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
for good noise immunity or
221k
for reduced no load input current.
The adjustable version of the AAT2500M, com-
bined with an external feedforward capacitor (C8 in
Figures 2 and 5), delivers enhanced transient
response for extreme pulsed load applications. The
addition of the feedforward capacitor typically
requires a larger output capacitor C1 for stability.
Table 2: Adjustable Resistor Values For Use
With 0.6V Step-Down Converter.
R2 = 59k
R1 (k
)
19.6
29.4
39.2
49.9
59.0
68.1
78.7
88.7
118
124
137
187
R2 = 221k
R1 (k
)
75
113
150
187
221
261
301
332
442
464
523
715
V
OUT
(V)
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.8
1.85
2.0
2.5
R1 = V
·
R2 = 0.6V
·
59k
= 88.5k
REF
V
OUT
1.5V
Figure 5: AAT2500M Evaluation Board Schematic.
L1
4.7μH
C1
4.7μF
C2
10μF
V
OUT BUCK
V
OUT LDO
GND
V
IN1
1
2
3
Buck Enable
LX1
GND
Table 2
R1
59k
R2
LX
1
PGND
2
EN_BUCK
3
EN_LDO
4
AGND
9
AGND
10
AGND
11
IN_BUCK
12
FB_BUCK
5
OUT_LDO
6
AGND
8
IN_LDO
7
U1
AAT2500M
C4
4.7μF
C3
10μF
1
2
3
LDO Enable
1
2
3
LDO Input
C7
0.01μF
C8
n/a
C9
n/a
相關(guān)PDF資料
PDF描述
AAT2500MITP-AW-T1 400mA Step-Down Converter and 300mA LDO
AAT2500 1MHz Step-Down Converter/LDO Regulator
AAT2500IFP-AQ-T1 1MHz Step-Down Converter/LDO Regulator
AAT2500IWP-AG-T1 1MHz Step-Down Converter/LDO Regulator
AAT2500IWP-AI-T1 1MHz Step-Down Converter/LDO Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AAT2500MITP-AW-T1 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 400mA Step-Down Convrt + 300mA LDO RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
AAT2503 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator
AAT2503_08 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator
AAT2503IZL-BAA-T1 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator
AAT2504 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:Adjustable 3-Channel Regulator
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