AME, Inc.
AME1505
High Power BiPolar Linear LDO
n
General Description
The AME1505 is a 5A low-dropout positive voltage regu-
lator. The dropout voltage of AME1505 is 750mV at maxi-
mum output current. The output voltage is preset at fac-
tory. It is available in fixed and adjustable output voltage
versions. The fixed voltage range could expand from 1.25V
to 3.7V, where 5V and 3.3V voltage supplies are avail-
able. AME1505 has 2 new features: First, a remote Sense
pin is wired out to eliminate output voltage variation due
to load changes. Secondly, an extra Control pin is avail-
able to effectively decrease Vin to Vo drop. It greatly
improves the power dissipation.
Overcurrent and thermal protection are integrated onto
the chip. Output current will limit as it reaches the pre-
set current. AME1505 series have excellent regulation
over line, load and temperature variations.
n
Functional Block Diagram
V
CONTROL
V
POWER
Current
Limiting
Amplifier
Thermal
Protection
Output
Sense
Error
Amp.
Bandgap
Reference
n
Features
l
Low dropout voltage --- 750mV at 5A
l
Adjustable or 1.25~3.7V fixed voltage
l
Line regulation 3 mV maximum
l
Load regulation 7mV maximum
l
Adjust pin (ADJ) current less than 120µA
l
Dual voltage supplies is recommended
l
Overcurrent protection
l
Available in TO-220-5, TO-263-5
3.3V
ADJ/GND
n
Typical Application
V
power
V
OUT
2.5V
5.0V
AME1505
V
control
ADJ
V
SENSE
n
Applications
l
VGA Card Supplies
l
Post Regulators for Switching Supplies
l
Microprocessor Supply
l
Chipset Supplies
l
LCD Monitor Power
GND
V
REF
100 ohm
100 ohm
1
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n
Ordering Information (contd.)
Part Number
AME1505ACBVADJ
Marking*
AME1505
ACBVADJ
yyww
AME1505
ACBVADJ
yyww
AME1505
ACBV150
yyww
AME1505
ACBV150
yyww
AME1505
ACBV250
yyww
AME1505
ACBV250
yyww
AME1505
ACBV330
yyww
AME1505
ACBV330
yyww
AME1505
ACDVADJ
yyww
AME1505
ACDVADJ
yyww
AME1505
ACDV150
yyww
AME1505
ACDV150
yyww
Output Voltage
ADJ
Package
TO-220-5
Operating Temp. Range
0
o
to 70
o
C
AME1505ACBVADJZ
ADJ
TO-220-5
0
o
to 70
o
C
AME1505ACBV150
1.5
TO-220-5
0
o
to 70
o
C
AME1505ACBV150Z
1.5
TO-220-5
0
o
to 70
o
C
AME1505ACBV250
2.5
TO-220-5
0
o
to 70
o
C
AME1505ACBV250Z
2.5
TO-220-5
0
o
to 70
o
C
AME1505ACBV330
3.3
TO-220-5
0
o
to 70
o
C
AME1505ACBV330Z
3.3
TO-220-5
0
o
to 70
o
C
AME1505ACDVADJ
ADJ
TO-263-5
0
o
to 70
o
C
AME1505ACDVADJZ
ADJ
TO-263-5
0
o
to 70
o
C
AME1505ACDV150
1.5
TO-263-5
0
o
to 70
o
C
AME1505ACDV150Z
1.5
TO-263-5
0
o
to 70
o
C
Note: yyww represents the date code
* A line on top of the first letter represents lead free plating such as AME1505
Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package type .
3
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n
Absolute Maximum Ratings
Parameter
Input Voltage
V
CONTROL
Thermal Resistance
(Junction to Ambient)
TO-220-5
θ
JA
TO-263-5
T
J
T
STG
T
LEAD
62.5
0 to 125
- 65 to 150
260
o
Symbol
V
POWER
Maximum
7
Unit
V
13
50
o
C/W
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (10 Sec)
C
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
4
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n
Electrical Specifications
Electrical Characteristics at I
O
=0mA, and Tj=25
O
C unless otherwise specified
Parameter
Reference voltage
(adjustable voltage)
Symbol
Test Condition
V
CONTROL
= 2.75V, Vpower=2V,
Io=10mA
V
CONTROL
= 2.75 ~ 12V,
Vpower=3.3 ~ 5.5V, Io=10mA ~ 5A
V
CONTROL
= 4V, Vpower=3.3V,
Io=10mA
V
CONTROL
= 3V, Vpower=2.3V,
Io= 10mA ~ 5A
V
CONTROL
= 5V, Vpower=3.3V,
Io=10mA
V
CONTROL
= 4V, Vpower=3.3V,
Io= 10mA ~ 5A
V
CONTROL
= 5.8V, Vpower=3.8V,
Io=10mA
V
CONTROL
= 4.8V, Vpower=4.1V,
Io= 10mA ~ 5A
Io=10mA, 1.5V<= (V
CONTROL
-V
OUT
) =< 12V,
0.8V<= (V
POWER
-V
OUT
) =< 5.5V
V
CONTROL
=Vout +2.5V,
V
POWER
= V
OUT
+0.8V Io=10 mA ~ 5A
V
POWER
= Vo + 0.8V, Io=5A
V
D
V
CONTROL
= Vo + 2.5V, Io=5A
Imin
V
CONTROL
= 5V, V
POWER
= 3.3V, V
ADJ
= 0V
V
CONTROL
= Vo + 2.5V,
V
POWER
= Vo + 0.8V, Io = 10mA ~ 5A
V
CONTROL
= Vo + 2.5V,
V
POWER
= Vo + 0.8V, Io = 10mA ~ 5A
V
CONTROL
= 2.75V,
V
POWER
= 2.05V, Io =10mA
I
S
T
C
T
S
R
A
V
IN
- Vo = 5V
V
IN
= 2.75 - 7V, I
O
= 10mA - 5A
V
IN
= 5V, I
O
= 500mA, Over temp.
V
CONTROL
= V
POWER
= Vo + 2.5V,
V
RIPPLE
= 1V
P-P
, Io =2A
5.0
-
0.5
60
0.45
5
80
6
50
7.5
0.005
0.5
80
0.75
10
100
10
120
-
-
-
-
mA
mA
mA
µA
A
%/
o
C
%
dB
Min
1.238
1.250
1.225
1.485
1.500
1.470
2.475
2.500
2.450
3.267
3.300
3.234
1
1
1.30
3.366
5
7
1.45
V
mV
mV
2.550
3.333
1.530
2.525
V
1.275
1.515
Typ
Max
1.262
V
Units
V
REF
1.5V
Output Voltage
2.5V
3.3V
Line regulation
Load regulation
Control Dropout
( V
CONTROL
- Vo )
Power Dropout
( V
POWER
- Vo )
Minimum Load Current
(ADJ only)
Control Pin Current
Ground Pin Current
ADJ Pin Current
Current limit
Temperature Coefficient
Temperature stability
Ripple rejection ratio
Reg
LINE
Reg
LOAD
5
PCB设计
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