
AMC DOC. #: AMC7580_E (LF)
Feb 2005
AMC7580
7A L
OW
D
ROPOUT
R
EGULATOR
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, these specifications apply T
J
= 25
°
C for AMC7580; I
O
= 10mA, V
OUT
= V
SENSE
, and are
for DC characteristics only. (Low duty cycle pulse testing techniques are used which maintains junction and case
temperatures equal to the ambient temperature.)
AMC7580
Typ.
Parameter
Symbol
Test Conditions
Min.
2.474 2.500 2.525
3.267 3.300 3.333
4.950 5.000 5.050
Max.
Units
AMC7580-2.5
AMC7580-3.3
AMC7580-5.0
V
CONTROL
= 5.0V, V
POWER
= 3.3V
V
CONTROL
= 5.8V, V
POWER
= 3.8V
V
CONTROL
= 7.5V, V
POWER
= 5.5V
V
CONTROL
= 5.0V,
V
POWER
= 3.3V
V
CONTROL
= 5.0V,
V
POWER
= 4.1V
V
CONTROL
= 6.5V,
V
POWER
= 5.8V
V
CONTROL
(Note 1)
V
CONTROL
= (V
OUT
+ 1.5V) to 12V,
V
POWER
= (V
OUT
+ 0.8V) to 7V,
I
O
= 10mA to 7A
(1.5V + V
OUT
)
≤
V
CONTROL
≤
12V,
0.8V
≤
(V
POWER
- V
OUT
)
≤
5.5V
V
CONTROL
= V
OUT
+ 2.5V,
V
POWER
= V
OUT
+ 0.8V,
I
O
= 10mA to 7A
Output Voltage
V
OUT
V
AMC7580-2.5
2.460 2.500 2.540
AMC7580-3.3
3.247 3.300 3.353
Output Voltage
AMC7580-5.0
V
OUT
I
O
= 7A
4.920 5.000 5.080
V
= 5.0V, V
POWER
= 3.3V,
1.238 1.250 1.262
Reference
Voltage
AMC7580-ADJ V
REF
1.230 1.250 1.270
V
Line Regulation (Note 2)
V
OI
0.04
0.2
%
Load regulation (Note 2)
V
OL
0.08
0.3
%
I
O
= 10mA
I
O
= 7A
I
O
= 10mA
I
O
= 7A
1.00
1.15
0.10
0.45
1.15
1.30
0.17
0.50
Dropout Voltage
V
CONTROL
- V
OUT
(Note 3)
V
V
POWER
= V
OUT
+ 0.8V
V
Dropout Voltage
V
POWER
- V
OUT
(Note 3)
V
V
CONTROL
= V
OUT
+
2.5V
V
CONTROL
= 2.75V,
V
POWER
= 2.05V, I
O
= 10mA
V
CONTROL
= V
OUT
+ 2.5V,
V
POWER
= V
OUT
+ 0.8V,
I
O
= 10mA to 7A
(V
IN
- V
OUT
)=1.5V
Imin V
CONTROL
= 5.0V, V
POWER
= 3.3V
V
CONTROL
= V
POWER
= V
OUT
+ 2.5V,
V
RIPPLE
= 1V
PP
, I
O
= 2.5A
T
A
= 25
°
C
V
Adjust Pin Current
I
ADJ
50
120
μ
A
Control Pin Current
I
CTNL
80
135
mA
Current Limit
Minimum Load Current (Note 4)
I
CL
7
8
5
A
mA
10
Ripple Rejection (Note 5)
R
R
60
80
dB
Thermal Regulation
0.003
% / W
Note 1 Output voltage is set to be 2.5V.
Note 2:
differential and the output current. However, the maximum power will not be available over the full
input/output voltage range.
Note 3: The dropout voltage is measured by either minimum control voltage or power voltage. The specifications
represent the minimum input/output voltage required to maintain 1% regulation.
Note 4: The minimum load current is the minimum current required to maintain regulation. Normally the current in
the resistor divider used to set the output voltage is selected to meet the minimum load current requirement.
Note 5: These parameters, although guaranteed, are not tested in production prior to shipment
Line and load regulations are guaranteed up to maximum power dissipation determined by input/output
Copyright
2002, ADD Microtech Corp.
5
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