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参数资料
| 型号： | AME1505ACBV250Z |
| 厂商： | AME, Inc. |
| 英文描述： | High Power BiPolar Linear LDO |
| 中文描述： | 高功率双极线性稳压器 |
| 文件页数： | 6/12页 |
| 文件大小： | 65K |
| 代理商： | AME1505ACBV250Z |
AME, Inc.
6
High Power BiPolar Linear LDO
AME1505
1. Output voltage adjustment
Like most regulators, the AME1505 regulates the out-
put by comparing the output voltage to an internally gen-
erated reference voltage. On the adjustable version, the
V
is available externally as 1.25V between V
and
ADJ. The voltage ratio formed by R1 and R2 should be
set to conduct 10mA (minimum output load). The output
voltage is given by the following equation:
R2
R1
V
OUT
= V
REF
( 1 +
) + I
ADJ
x R2
On fixed versions of AME1505, the voltage divider is
factory-preset internally.
n
Application Description
2. Current limit protection
AME1505 is protected against overload conditions. Cur-
rent protection is triggered at typical 7.5A.
3. Stability and load regulation
AME1505 requires a capacitor from V
to GND to
provide compensation feedback to the internal gain stage.
This is to ensure stability at the output terminal. Typi-
cally, a 10
μ
F tantalum or 50
μ
F aluminum electrolytic is
sufficient.
(Note: It is important that the ESR for this capacitor does not ex-
ceed 0.5
W
.)
The output capacitor dose not have a theoretical upper
limit and increasing its value will increase stability. C
= 100
μ
F or more is typical for high current regulator de-
sign.
For the adjustable version, the best load regulation is
accomplished when the top of the resistor divider (R1) is
connected directly to the output pin of the AME1505.
When so connected, R
P
is not multiplied by the divider
ratio.
For fixed output versions, the top of R1 is internally
connected to the output. The ground pin can be connected
to low side of the load to eliminate ground loop errors.
V
OUT
= V
REF
(1+R1) + I
ADJ
x R2
ADJ
V
REF
I
ADJ
V
IN
V
OUT
R1
R2
C
1
SENSE
V
POWER
OUT
V
CONTROL
R1
R2
R
L
R
P
Parasitic
Line Resistance
Connect
R2 to load
(Connect R1 to case)
SENSE
ADJ
V
POWER
OUT
V
CONTROL
V
POWER
V
CONTROL
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| AME1505ACBV330 | High Power BiPolar Linear LDO |
| AME1505ACBV330Z | High Power BiPolar Linear LDO |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AME1505ACBV330 | 制造商:AME 制造商全称:Analog Microelectronics 功能描述:High Power BiPolar Linear LDO |
| AME1505ACBV330Z | 制造商:AME 制造商全称:Analog Microelectronics 功能描述:High Power BiPolar Linear LDO |
| AME1505ACBVADJ | 制造商:AME 制造商全称:Analog Microelectronics 功能描述:High Power BiPolar Linear LDO |
| AME1505ACBVADJZ | 制造商:AME 制造商全称:Analog Microelectronics 功能描述:High Power BiPolar Linear LDO |
| AME1505ACDV150 | 制造商:AME 制造商全称:Analog Microelectronics 功能描述:High Power BiPolar Linear LDO |
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