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參數(shù)資料
| 型號： | AP1187S7 |
| 英文描述： | 1A Ultra Low Dropout Positive Adjustable Regulator |
| 中文描述： | 第1A超低壓差正，可調(diào)式穩(wěn)壓器 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大小： | 178K |
| 代理商： | AP1187S7 |
AP1187
1A Ultra Low Dropout Positive Adjustable Regulator
Function Description (Continued)
Thermal Design
The AP1187 incorporates an internal thermal
shutdown that protects the device when the junction
temperature exceeds the allowable maximum
junction temperature. Although this device can
operate with junction temperatures in the range of
150
℃
, it is recommended that the selected heat
sink be chosen such that during maximum
continuous load operation the junction temperature
is kept below this number. The example below
shows the steps in selecting the proper surface
mount package.
Anachip Corp.
www.anachip.com.tw Rev.1.1 Aug 23, 2005
5/6
Assuming, the following conditions:
V
OUT
=2.5V
V
IN
=3.3V
V
CTRL
=5V
I
OUT
=1A DC Avg.
Calculate the maximum power dissipation using the
following equation:
P
D
= I
OUT
*(V
IN
-V
OUT
) + (I
OUT
/60) * (V
CTRL
- V
OUT
)
P
D
=1*(3.3-2.5) + (1/60)*(5-2.5) =0.84W
Using table below select the proper package and
the amount of copper board needed.
Package
SOP7
Copper Area
1.0” X 1.0”
Θ
JA
(
o
C
/ W
)
65
Max Pd (Ta=25
o
C) Max Pd (Ta=45
o
C)
1.7W
1.4W
Note: Above table is based on the maximum junction temperature of 135
o
C.
As shown in the above table, any of the two packages will do the job. For low cost applications the SOP7 package is
recommended.
Marking Information
1
4
SOP-7L
Logo
Part number
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
~
7
5
AP1187
YY WW X X
(Top View)
Blank: normal
L: Lead Free Package
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AP1187S7A | 1A Ultra Low Dropout Positive Adjustable Regulator |
| AP1187S7L | 1A Ultra Low Dropout Positive Adjustable Regulator |
| AP1187S7LA | 1A Ultra Low Dropout Positive Adjustable Regulator |
| AP1202 | Dual USB High-Side Power Switch |
| AP1202HN | Dual USB High-Side Power Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AP1187S7-7 | 功能描述:低壓差穩(wěn)壓器 - LDO LDO BI 1.0A 0.6V 16-18V 1.25V ADJ RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| AP1187S7A | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:1A Ultra Low Dropout Positive Adjustable Regulator |
| AP1187S7L | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:1A Ultra Low Dropout Positive Adjustable Regulator |
| AP1187S7LA | 制造商:ANACHIP 制造商全稱:Anachip Corp 功能描述:1A Ultra Low Dropout Positive Adjustable Regulator |
| AP1187S7L-U | 功能描述:低壓差穩(wěn)壓器 - LDO LDO BI 1.0A 0.6V 16-18V 1.25V ADJ RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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