AME AME1505 High power bipolar linear ldo Datasheet

AME, Inc.
AME1505
n General Description
The AME1505 is a 5A low-dropout positive voltage regulator. The dropout voltage of AME1505 is 750mV at maximum output current. The output voltage is preset at factory. 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 available. 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 available to effectively decrease Vin to Vo drop. It greatly
improves the power dissipation.
High Power BiPolar Linear LDO
n Functional Block Diagram
VCONTROL
VPOWER
Current
Limiting
Amplifier
Output
Thermal
Protection
Overcurrent and thermal protection are integrated onto
the chip. Output current will limit as it reaches the preset current. AME1505 series have excellent regulation
over line, load and temperature variations.
Sense
Error
Amp.
n Features
Bandgap
Reference
ADJ/GND
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
n Typical Application
l Dual voltage supplies is recommended
l Overcurrent protection
l Available in TO-220-5, TO-263-5
3.3V
V power
5.0V
ADJ
VSENSE
VREF
l VGA Card Supplies
100 ohm
l Post Regulators for Switching Supplies
l Microprocessor Supply
2.5V
AME1505
V control
n Applications
VOUT
100 ohm
GND
l Chipset Supplies
l LCD Monitor Power
1
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n Pin Configuration
TO-263-5
Front View
AME1505
TO-220-5
Front View
AME 1505
AME 1505
1. SENSE
1. SENSE
2. ADJ / GND
2. ADJ / GND
3. OUTPUT
AMExxxx
AME1505
4. VCONTROL
5. VPOWER
1
2 3 4
3. OUTPUT
4. VCONTROL
5. VPOWER
5
1
2
3
4 5
n Ordering Information
AME1505 x x x x x x
Special Feature
Voltage
Number of Pins
Package Type
Operating Temperature Range
Product Grade or Option
Product Grade
or Option
A
(TO-263)
A
(TO-220)
2
1. SENSE
2. ADJ/GND
3. Output
4. VCONTROL
5. VPOWER
1. SENSE
2. ADJ/GND
3. Output
4. VCONTROL
5. VPOWER
Operating
Temperature
Range
C: 0OC to 70OC
Package Type
B: TO-220
D: TO-263
Number
of
Pins
V: 5
Voltage
ADJ:
150:
250:
330:
ADJ
1.5V
2.5V
3.3V
Special Feature
Z: Lead Free
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n Ordering Information (contd.)
Part Number
AME1505ACBVADJ
AME1505ACBVADJZ
AME1505ACBV150
AME1505ACBV150Z
AME1505ACBV250
AME1505ACBV250Z
AME1505ACBV330
AME1505ACBV330Z
AME1505ACDVADJ
AME1505ACDVADJZ
AME1505ACDV150
AME1505ACDV150Z
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
Package
Operating Temp. Range
ADJ
TO-220-5
0o to 70oC
ADJ
TO-220-5
0o to 70oC
1.5
TO-220-5
0o to 70oC
1.5
TO-220-5
0o to 70oC
2.5
TO-220-5
0o to 70oC
2.5
TO-220-5
0o to 70oC
3.3
TO-220-5
0o to 70oC
3.3
TO-220-5
0o to 70oC
ADJ
TO-263-5
0o to 70oC
ADJ
TO-263-5
0o to 70oC
1.5
TO-263-5
0o to 70oC
1.5
TO-263-5
0o to 70oC
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
Symbol
Maximum
VPOWER
7
VCONTROL
13
Unit
Input Voltage
Thermal Resistance
(Junction to Ambient)
V
TO-220-5
50
θJA
TO-263-5
Operating Junction Temperature Range
o
C/W
62.5
TJ
0 to 125
Storage Temperature Range
TSTG
- 65 to 150
Lead Temperature (10 Sec)
TLEAD
260
o
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 IO=0mA, and Tj=25OC unless otherwise specified
Parameter
Reference voltage
(adjustable voltage)
Symbol
VREF
1.5V
Output Voltage
2.5V
3.3V
Line regulation
RegLINE
Load regulation
RegLOAD
Control Dropout
( VCONTROL - Vo )
Power Dropout
( VPOWER - Vo )
Minimum Load Current
(ADJ only)
Test Condition
VCONTROL = 2.75V, Vpower=2V,
Io=10mA
VCONTROL = 2.75 ~ 12V,
Vpower=3.3 ~ 5.5V, Io=10mA ~ 5A
VCONTROL = 4V, Vpower=3.3V,
Io=10mA
VCONTROL = 3V, Vpower=2.3V,
Io= 10mA ~ 5A
VCONTROL = 5V, Vpower=3.3V,
Io=10mA
VCONTROL = 4V, Vpower=3.3V,
Io= 10mA ~ 5A
VCONTROL = 5.8V, Vpower=3.8V,
Io=10mA
VCONTROL = 4.8V, Vpower=4.1V,
Io= 10mA ~ 5A
Io=10mA, 1.5V<= (V CONTROL-V OUT) =< 12V,
Min
Typ
1.238
Max
1.262
1.250
1.225
V
1.275
1.485
1.515
1.500
1.470
1.530
2.475
2.525
2.500
2.450
V
2.550
3.267
3.333
3.300
3.234
3.366
1
5
mV
1
7
mV
VPOWER = Vo + 0.8V, Io=5A
1.30
1.45
VCONTROL = Vo + 2.5V, Io=5A
0.45
0.75
VCONTROL = 5V, VPOWER = 3.3V, VADJ= 0V
5
10
mA
80
100
mA
6
10
mA
50
120
µA
0.8V<= (V POWER -V OUT) =< 5.5V
VCONTROL =Vout +2.5V,
VPOWER = VOUT+0.8V Io=10 mA ~ 5A
VD
Imin
V
VCONTROL = Vo + 2.5V,
Control Pin Current
VPOWER = Vo + 0.8V, Io = 10mA ~ 5A
VCONTROL = Vo + 2.5V,
Ground Pin Current
VPOWER = Vo + 0.8V, Io = 10mA ~ 5A
VCONTROL = 2.75V,
ADJ Pin Current
Units
VPOWER = 2.05V, Io =10mA
Current limit
IS
VIN - Vo = 5V
5.0
7.5
-
A
Temperature Coefficient
TC
VIN = 2.75 - 7V, IO = 10mA - 5A
-
0.005
-
%/ oC
Temperature stability
TS
VIN = 5V, IO = 500mA, Over temp.
0.5
0.5
-
%
Ripple rejection ratio
RA
60
80
-
dB
VCONTROL = VPOWER = Vo + 2.5V,
VRIPPLE = 1V P-P, Io =2A
5
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n Application Description
1. Output voltage adjustment
3. Stability and load regulation
Like most regulators, the AME1505 regulates the output by comparing the output voltage to an internally generated reference voltage. On the adjustable version, the
VREF is available externally as 1.25V between VOUT 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
VOUT = VREF ( 1 +
) + IADJ x R2
R1
AME1505 requires a capacitor from VOUT to GND to
provide compensation feedback to the internal gain stage.
This is to ensure stability at the output terminal. Typically, a 10µF tantalum or 50µF aluminum electrolytic is
sufficient.
On fixed versions of AME1505, the voltage divider is
factory-preset internally.
2. Current limit protection
AME1505 is protected against overload conditions. Current protection is triggered at typical 7.5A.
VIN
VCONTROL
OUT
VPOWER
(Note: It is important that the ESR for this capacitor does not exceed 0.5Ω.)
The output capacitor dose not have a theoretical upper
limit and increasing its value will increase stability. COUT
= 100µF or more is typical for high current regulator design.
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, RP is not multiplied by the divider
ratio.
VOUT
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.
VREF
VCONTROL
SENSE
ADJ
R1
C1
VCONTROL
IADJ
OUT
RP
Parasitic
Line Resistance
VPOWER
VPOWER
R2
VOUT = VREF (1+ R2 ) + I ADJ x R2
R1
SENSE
ADJ
R1
(Connect R1 to case)
R2
Connect
R2 to load
6
RL
AME, Inc.
AME1505
High Power BiPolar Linear LDO
4. Thermal consideration
The AME1505 series contain thermal limiting circuitry
designed to protect itself for over-temperature conditions.
Even for normal load conditions, maximum junction temperature ratings must not be exceeded. As mention in
thermal protection section, we need to consider all
sources of thermal resistance between junction and ambient. It includes junction-to-case, case-to-heat-sink interface and heat sink thermal resistance itself.
Junction-to-case thermal resistance is specified from
the IC junction to the bottom of the case directly below
the die. Proper mounting is required to ensure the best
possible thermal flow from this area of the package to the
heat sink. The case of all devices in this series is electrically connected to the output. Therefore, if the case of
the device must be electrically isolated, a thermally conductive spacer is recommended.
7
AME, Inc.
AME1505
High Power BiPolar Linear LDO
Reference Voltage vs. Temperature
Adjustable Pin Current vs. Temperature
1.2515
58
56
ADJ pin Current (uA)
Reference Voltage (V)
1.2510
1.2505
1.2500
1.2495
1.2490
54
52
50
48
1.2485
1.2480
-45
-5
25
55
46
-45
85
-5
Temperature (oC)
Control Pin Current vs. Temperature
Control Pin Dropout Voltage (V)
Control Pin Current @ 10mA (mA)
85
Control Dropout Voltage vs. Load
10.0
9.5
9.0
8.5
8.0
7.5
7.0
6.5
25 oC
1.30
85 oC
1.25
1.20
1.15
1.10
6.0
-45
-5
25
55
Temperature
1
85
3
4
5
Load Current (A)
Output Voltage vs. Load Current
Power Dropout Voltage vs. Load
700
2.490
600
VP Dropout Voltage (mV)
V OUT =2.5V
2.489
2.488
2.487
2.486
2.485
2.484
2.483
1
2
(oC)
2.491
Output Voltage (V)
55
1.35
10.5
2
3
Load Current (A)
8
25
Temperature (o C)
4
5
500
400
300
VOUT=2.5V
200
100
0
1
2
3
Load Current (A)
4
5
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n External Resistor Divider Table for Customized Voltage
R1
(Ohm)
100
102
105
110
113
115
118
121
124
0.000
4.698
9.396
14.09
18.79
23.49
28.19
32.88
37.58
42.28
46.98
51.68
56.37
61.07
65.77
70.47
75.17
79.86
84.56
89.26
93.96
98.65
103.4
108.1
112.7
117.4
122.1
126.8
131.5
136.2
140.9
145.6
150.3
155.0
159.7
164.4
169.1
173.8
0.000
4.817
9.633
14.45
19.27
24.08
28.90
33.72
38.53
43.35
48.17
52.98
57.80
62.62
67.43
72.25
77.07
81.88
86.70
91.52
96.33
101.2
106.0
110.8
115.6
120.4
125.2
130.1
134.9
139.7
144.5
149.3
154.1
159.0
163.8
168.6
173.4
178.2
0.000
4.936
9.871
14.81
19.74
24.68
29.61
34.55
39.48
44.42
49.36
54.29
59.23
64.16
69.10
74.03
78.97
83.90
88.84
93.77
98.71
103.6
108.6
113.5
118.5
123.4
128.3
133.3
138.2
143.1
148.1
153.0
157.9
162.9
167.8
172.7
177.7
182.6
R2(Ohm)=(Vout-1.25)*R1/(1.25+50u*R1)
Vout
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
107
0.000
3.984
7.968
11.95
15.94
19.92
23.90
27.89
31.87
35.86
39.84
43.82
47.81
51.79
55.78
59.76
63.75
67.73
71.71
75.70
79.68
83.67
87.65
91.63
95.62
99.60
103.6
107.6
111.6
115.5
119.5
123.5
127.5
131.5
135.5
139.4
143.4
147.4
0.000
4.063
8.127
12.19
16.25
20.32
24.38
28.44
32.51
36.57
40.63
44.70
48.76
52.82
56.89
60.95
65.01
69.08
73.14
77.21
81.27
85.33
89.40
93.46
97.52
101.6
105.6
109.7
113.8
117.8
121.9
126.0
130.0
134.1
138.2
142.2
146.3
150.3
0.000
4.182
8.365
12.55
16.73
20.91
25.09
29.28
33.46
37.64
41.82
46.01
50.19
54.37
58.55
62.74
66.92
71.10
75.28
79.47
83.65
87.83
92.01
96.20
100.4
104.6
108.7
112.9
117.1
121.3
125.5
129.7
133.8
138.0
142.2
146.4
150.6
154.8
0.000
4.262
8.524
12.79
17.05
21.31
25.57
29.83
34.09
38.36
42.62
46.88
51.14
55.40
59.66
63.93
68.19
72.45
76.71
80.97
85.24
89.50
93.76
98.02
102.3
106.5
110.8
115.1
119.3
123.6
127.9
132.1
136.4
140.6
144.9
149.2
153.4
157.7
0.000
4.381
8.761
13.14
17.52
21.90
26.28
30.67
35.05
39.43
43.81
48.19
52.57
56.95
61.33
65.71
70.09
74.47
78.85
83.23
87.61
92.00
96.38
100.8
105.1
109.5
113.9
118.3
122.7
127.0
131.4
135.8
140.2
144.6
148.9
153.3
157.7
162.1
0.000
4.500
8.999
13.50
18.00
22.50
27.00
31.50
36.00
40.50
45.00
49.50
54.00
58.50
63.00
67.49
71.99
76.49
80.99
85.49
89.99
94.49
98.99
103.5
108.0
112.5
117.0
121.5
126.0
130.5
135.0
139.5
144.0
148.5
153.0
157.5
162.0
166.5
0.000
4.579
9.158
13.74
18.32
22.89
27.47
32.05
36.63
41.21
45.79
50.37
54.95
59.53
64.11
68.68
73.26
77.84
82.42
87.00
91.58
96.16
100.7
105.3
109.9
114.5
119.1
123.6
128.2
132.8
137.4
141.9
146.5
151.1
155.7
160.3
164.8
169.4
9
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n External Resistor Divider Table for Customized Voltage (contd.)
R1
(Ohm)
100
102
105
10
110
113
115
118
121
124
178.5
183.2
187.9
192.6
197.3
202.0
206.7
211.4
216.1
220.8
225.5
230.2
234.9
239.6
244.3
249.0
253.7
258.4
263.1
267.8
272.5
277.2
281.9
286.6
291.3
296.0
300.7
305.4
310.1
314.8
319.5
324.2
328.8
333.5
338.2
342.9
347.6
352.3
183.0
187.9
192.7
197.5
202.3
207.1
211.9
216.8
221.6
226.4
231.2
236.0
240.8
245.7
250.5
255.3
260.1
264.9
269.7
274.6
279.4
284.2
289.0
293.8
298.6
303.5
308.3
313.1
317.9
322.7
327.5
332.4
337.2
342.0
346.8
351.6
356.4
361.3
187.5
192.5
197.4
202.4
207.3
212.2
217.2
222.1
227.0
232.0
236.9
241.8
246.8
251.7
256.6
261.6
266.5
271.5
276.4
281.3
286.3
291.2
296.1
301.1
306.0
310.9
315.9
320.8
325.7
330.7
335.6
340.6
345.5
350.4
355.4
360.3
365.2
370.2
R2(Ohm)=(Vout-1.25)*R1/(1.25+50u*R1)
Vout
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
3.65
3.70
3.75
3.80
3.85
3.90
3.95
4.00
4.05
4.10
4.15
4.20
4.25
4.30
4.35
4.40
4.45
4.50
4.55
4.60
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
107
151.4
155.4
159.4
163.3
167.3
171.3
175.3
179.3
183.3
187.3
191.2
195.2
199.2
203.2
207.2
211.2
215.1
219.1
223.1
227.1
231.1
235.1
239.0
243.0
247.0
251.0
255.0
259.0
262.9
266.9
270.9
274.9
278.9
282.9
286.9
290.8
294.8
298.8
154.4
158.5
162.5
166.6
170.7
174.7
178.8
182.9
186.9
191.0
195.0
199.1
203.2
207.2
211.3
215.4
219.4
223.5
227.6
231.6
235.7
239.7
243.8
247.9
251.9
256.0
260.1
264.1
268.2
272.2
276.3
280.4
284.4
288.5
292.6
296.6
300.7
304.8
158.9
163.1
167.3
171.5
175.7
179.8
184.0
188.2
192.4
196.6
200.8
204.9
209.1
213.3
217.5
221.7
225.9
230.0
234.2
238.4
242.6
246.8
250.9
255.1
259.3
263.5
267.7
271.9
276.0
280.2
284.4
288.6
292.8
297.0
301.1
305.3
309.5
313.7
161.9
166.2
170.5
174.7
179.0
183.3
187.5
191.8
196.0
200.3
204.6
208.8
213.1
217.3
221.6
225.9
230.1
234.4
238.7
242.9
247.2
251.4
255.7
260.0
264.2
268.5
272.8
277.0
281.3
285.5
289.8
294.1
298.3
302.6
306.8
311.1
315.4
319.6
166.5
170.8
175.2
179.6
184.0
188.4
192.8
197.1
201.5
205.9
210.3
214.7
219.0
223.4
227.8
232.2
236.6
240.9
245.3
249.7
254.1
258.5
262.8
267.2
271.6
276.0
280.4
284.7
289.1
293.5
297.9
302.3
306.7
311.0
315.4
319.8
324.2
328.6
171.0
175.5
180.0
184.5
189.0
193.5
198.0
202.5
207.0
211.5
216.0
220.5
225.0
229.5
234.0
238.5
243.0
247.5
252.0
256.5
261.0
265.5
270.0
274.5
279.0
283.5
288.0
292.5
297.0
301.5
306.0
310.5
315.0
319.5
324.0
328.5
333.0
337.5
174.0
178.6
183.2
187.7
192.3
196.9
201.5
206.1
210.6
215.2
219.8
224.4
228.9
233.5
238.1
242.7
247.3
251.8
256.4
261.0
265.6
270.2
274.7
279.3
283.9
288.5
293.1
297.6
302.2
306.8
311.4
315.9
320.5
325.1
329.7
334.3
338.8
343.4
AME, Inc.
AME1505
High Power BiPolar Linear LDO
n Package Dimension
TO-263-5
SYMBOLS
Top View
Side View
A
B
K
E
H
P
W
D
G
N
A
B
C
D
E
G
H
K
N
P
R
W
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
10.050
10.668
0.396
0.420
8.280
9.169
0.326
0.361
4.310
4.670
0.170
0.184
0.660
0.910
0.026
0.036
1.140
1.400
0.045
0.055
1.70REF
0.067 REF
14.605
15.875
0.575
0.625
1.143
1.680
0.045
0.066
0.330
0.580
0.013
0.023
2.280
2.800
0.090
0.110
0
o
8
o
0
o
8
0.25REF
0.01REF
MILLIMETERS
INCHES
o
R
Front View
C
TO-220-5
Top View
SYMBOLS
Side View
C
I
A
J
D
E
F
MIN
MAX
MIN
MAX
A
2.616
REF
2.870
REF
0.103
REF
0.113
REF
B
10.160
10.668
0.400
0.420
C
3.708
3.962
0.146
0.156
D
8.915
9.169
0.351
0.361
E
12.700
14.732
0.500
0.580
F
1.575
1.829
0.062
0.072
G
0.711
0.965
0.028
0.038
H
4.343
4.597
0.171
0.181
I
1.143
1.397
0.045
0.055
J
14.859
15.113
0.585
0.595
K
2.032
3.048
0.080
0.120
L
0.305
0.457
0.012
0.018
H
B
G
L
K
11
www.ame.com.tw
E-Mail: [email protected]
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
 AME, Inc. , June 2005
Document: 2039-DS1505-J
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
U.S.A.(Subsidiary)
Analog Microelectronics, Inc.
3100 De La Cruz Blvd., Suite 201
Santa Clara, CA. 95054-2046
Tel : (408) 988-2388
Fax: (408) 988-2489
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