ame1505 ETC-unknow, ame1505 Datasheet - Page 6

• Manufacturer Part Number: ame1505
• Description: High Power Bipolar Linear Ldo
• Manufacturer: ETC-unknow

AME1505
n Application Description
1. Output voltage adjustment
put by comparing the output voltage to an internally gen-
erated reference voltage. On the adjustable version, the
V
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:
factory-preset internally.
2. Current limit protection
rent protection is triggered at typical 7.5A.
6
V
C
REF
IN
Like most regulators, the AME1505 regulates the out-
On fixed versions of AME1505, the voltage divider is
AME1505 is protected against overload conditions. Cur-
1
is available externally as 1.25V between V
V
OUT
V
= V
OUT
V
V
CONTROL
POWER
REF
AME, Inc.
= V
I
ADJ
( 1 +
REF
ADJ
(1+ R2
R2
R1
R1
SENSE
) + I
OUT
) + I
ADJ
ADJ
x R2
x R2
R2
R1
OUT
V
V
REF
OUT
and
3. Stability and load regulation
provide compensation feedback to the internal gain stage.
This is to ensure stability at the output terminal. Typi-
cally, a 10 F tantalum or 50 F aluminum electrolytic is
sufficient.
(Note: It is important that the ESR for this capacitor does not ex-
ceed 0.5 .)
limit and increasing its value will increase stability. C
= 100 F or more is typical for high current regulator de-
sign.
accomplished when the top of the resistor divider (R1) is
connected directly to the output pin of the AME1505.
When so connected, R
ratio.
connected to the output. The ground pin can be connected
to low side of the load to eliminate ground loop errors.
V
V
CONTROL
POWER
AME1505 requires a capacitor from V
The output capacitor dose not have a theoretical upper
For the adjustable version, the best load regulation is
For fixed output versions, the top of R1 is internally
V
V
CONTROL
POWER
High Power BiPolar Linear LDO
ADJ
SENSE
P
OUT
is not multiplied by the divider
(Connect R1 to case)
R2
Line Resistance
R1
R2 to load
Connect
Parasitic
R
OUT
P
to GND to
OUT
R
L