參數(shù)資料
型號(hào)： AAT1126IGV-0.6-T1
廠商： Advanced Analogic Technologies, Inc.
英文描述： 600mA, 1MHz Step-Down Converter
中文描述： 600毫安，1MHz的降壓轉(zhuǎn)換器
文件頁數(shù)： 14/20頁
文件大?。?/td> 570K
代理商： AAT1126IGV-0.6-T1
Since R
DS(ON)
, quiescent current, and switching
losses all vary with input voltage, the total losses
should be investigated over the complete input
voltage range.
Given the total losses, the maximum junction tem-
perature can be derived from the
θ
JA
for the
SOT23-5 package which is 150°C/W.
Layout
The suggested PCB layout for the AAT1126 is
shown in Figures 2, 3, and 4. The following guide-
lines should be used to help ensure a proper layout.
1. The input capacitor (C2) should connect as close-
ly as possible to V
IN
(Pin 3) and GND (Pin 1).
2. C1 and L1 should be connected as closely as
possible. The connection of L1 to the LX pin
should be as short as possible.
3. The feedback trace or OUT pin (Pin 4) should
be separate from any power trace and connect
as closely as possible to the load point. Sensing
along a high-current load trace will degrade DC
load regulation. If external feedback resistors
are used, they should be placed as closely as
possible to the OUT pin (Pin 4) to minimize the
length of the high impedance feedback trace.
4. The resistance of the trace from the load return to
GND (Pin 1) should be kept to a minimum. This
will help to minimize any error in DC regulation
due to differences in the potential of the load
return and the AAT1126 ground.
T
J(MAX)
=
P
TOTAL
·
Θ
JA
+ T
AMB
AAT1126
600mA, 1MHz Step-Down Converter
14
1126.2006.05.1.1
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