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參數(shù)資料
| 型號： | AMC8879 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩(wěn)壓器的反向電流保護 |
| 文件頁數(shù)： | 2/9頁 |
| 文件大?。?/td> | 223K |
| 代理商： | AMC8879 |
AMC DOC. #: AMC8878_D (LF)
March 2004
AMC8878/8879
L
OW
N
OISE
150mA
L
OW
D
ROP
O
UT
R
EGULATOR
TYPICAL APPLICATION
C
BP
0.01
μ
F
AMC8878
AMC8879
OFF
ON
V
IN
2.5V to 6V
C
IN
1
μ
F
C
OUT
1
μ
F
V
OUT
ABSOLUTE MAXIMUM RATINGS
(Note)
Input Voltage, V
IN
Operating Junction Temperature, T
J
Storage Temperature Range
Lead Temperature (soldering, 10 seconds)
Power Dissipation, P
D
@ T
A
= 70
Note:
Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground.
Currents are positive into, negative out of the specified terminal.
THERMAL DATA
DB PACKAGE
:
Thermal Resistance from Junction to Ambient,
θ
JA
Junction Temperature Calculation: T
J
= T
A
+ (P
D
×
θ
JA
).
The
θ
JA
numbers are guidelines for the thermal performance of the device/pc-board system.
Connect the ground pin to ground using a large pad or ground plane for better heat dissipation.
All of the above assume no ambient airflow.
Maximum Power Calculation:
T
J(MAX)
– T
A(MAX)
P
D(MAX)
=
θ
JA
T
J
(
T
A
(
θ
JA
(
dissipating materials.
The maximum power dissipation for a single-output regulator is
:
P
D(MAX)
=
[
(V
IN(MAX)
- V
OUT(NOM)
)
]
×
I
OUT(NOM)
+ V
IN(MAX)
×
I
Q
12V
150
-65
+260
150 mW
O
C
O
C to +150
O
C
O
C
O
C
220
O
C /W
O
C): Maximum recommended junction temperature
O
C): Ambient temperature of the application
O
C /W): Junction-to-junction temperature thermal resistance of the package, and other heat
Where: V
OUT(NOM)
= the nominal output voltage
I
OUT(NOM)
= the nominal output current, and
I
Q
=
the quiescent current the regulator consumes at I
OUT(MAX)
V
IN(MAX)
= the maximum input voltage
Then
θ
JA
= (+150
O
C – T
A
)/P
D
Copyright
2002, ADD Microtech Corp. 2 www.addmtek.com
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