- 您現(xiàn)在的位置：買賣IC網 > PDF目錄381232 > AAT1203-S-T (Advanced Analog Technology,lnc.) 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH V-AUX SWITCH PDF資料下載
參數(shù)資料
| 型號： | AAT1203-S-T |
| 廠商： | Advanced Analog Technology,lnc. |
| 英文描述： | 250-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH V-AUX SWITCH |
| 中文描述： | 250 - mA的多輸入低壓差穩(wěn)壓器的V -輔助開關 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 312K |
| 代理商： | AAT1203-S-T |
Advanced Analog Technology, Inc.
Thermal Information
–
–
Advanced Analog Technology, Inc
.
–
–
Page 11 of 16 V 1.
0
AAT1203
To ensure reliable operation of the device, the junction temperature of the output device must be within
the safe operating area SOA . This is achieved by having a means to dissipate the heat generated from
the junction of the output structure. There are two components that contribute to thermal resistance.
They consist of two paths in series. The first path is the junction to case thermal resistance, R
JC
; the
second path is the case to ambient thermal resistance, R
CA
. The overall junction to ambient thermal
resistance, R
JA
, is determined by
R
JA
R
JC
R
CA
Package and board layout incorporated in the application determines the ability to efficiently dissipate
the heat from the junction. The operating junction temperature is determined by the operation ambient
temperature,
T , and the junction power dissipation, P
J
.
The junction temperature, T
J
, is equal to the following thermal equation
T
J
C
T
P
J
R
JC
P
J
R
CA
T
J
C
T
P
J
R
JA
This particular application uses the 8-pin SOIC package with standard lead frame with a dedicated
ground terminal. Hence, the maximum power dissipation allowable for an operating ambient
temperature of 70
, and a maximum junction temperature of 150
P
J
T
J
C
T
/ R
JA
P
J
150
70
/70
1.1W
Worst case maximum power dissipation is determined by
5.5
3.135
×0.25
0.591W
Normal operating maximum power dissipation is
5
3.3
×0.25
0.425W
Note: The thermal characteristics of the AAT1203 were measured using a double-sided board with two
square inches of copper area connected to the GND pins for "heat spreading". The use of multi- layer
board construction with power planes will further enhance the thermal performance of the package.
is determined as
d
P
d
P
相關PDF資料 |
PDF描述 |
|---|---|
| AAT1205 | 400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL OUTPUT POWER MANAGEMENT |
| AAT1205-S | 400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL OUTPUT POWER MANAGEMENT |
| AAT1205-S-T | 400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL OUTPUT POWER MANAGEMENT |
| AAT1210 | High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming |
| AAT1210IRN-0.6-T1 | High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AAT1204 | 制造商:AAT 制造商全稱:AAT 功能描述:400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH VAUX SWITCH |
| AAT1205 | 制造商:AAT 制造商全稱:AAT 功能描述:400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL OUTPUT POWER MANAGEMENT |
| AAT1205-S | 制造商:AAT 制造商全稱:AAT 功能描述:400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL OUTPUT POWER MANAGEMENT |
| AAT1205-S-T | 制造商:AAT 制造商全稱:AAT 功能描述:400-mA MULTI-INPUT LOW-DROPOUT REGULATOR WITH DUAL OUTPUT POWER MANAGEMENT |
| AAT1210 | 制造商:ANALOGICTECH 制造商全稱:Advanced Analogic Technologies 功能描述:High Power DC/DC Boost Converter with Optional Dynamic Voltage Programming |
發(fā)布緊急采購，3分鐘左右您將得到回復。