AME, Inc.
1
AME8815 1.5A CMOS LDO
nn
nn
n Typical Application
nn
nn
n Functional Block Diagram
nn
nn
n Features
lVery Low Dropout Voltage
lGuaranteed 1.5A Output
lAccurate to within 1.5%
l45µA Quiescent Current T ypically
lOver-Temperature Shutdown
lCurrent Limiting
lShort Circuit Current Fold-back
lSpace-Efficient DP AK or SOT223 Package
lLow T emperature Coefficient
nn
nn
n General Description
The AME8815 family of linear regulators feature low
quiescent current (45µA typ.) with low dropout voltage,
making them ideal for battery applications. It is available
in D2PAK and TO-220 packages. The space-efficient
SOT-223 and DP AK package are attractive for "Pocket"
and "Hand Held" applications.
Output voltages are set at the factory and trimmed to
1.5% accuracy.
These rugged devices have both Thermal Shutdown,
and Current Fold-back to prevent device failure under
the "Worst" of operating conditions.
The AME8815 is stable with an output capacitance of
4.7µF or greater .
nn
nn
n Applications
lInstrumentation
lPortable Electronics
lWireless Devices
lPC Peripherals
lBattery Powered Widgets
Overcurrent
Shutdown Thermal
Shutdown
AMP
GND
OUTIN
1.215V
R1
R2
AME8815
OUT
IN
C1
1
µ
F
GND
5V
OUT
IN
C2
4.7µ
F
AME, Inc.
2
1.5A CMOS LDO
AME8815
nn
nn
n Pin Configuration
TO-252 (DPAK-2) Top View
1. GND
2. VOUT (heat sink)
3. VIN
1 2 3
213
SOT-223 Top View
123
1. GND
2. VOUT (heat sink)
3. VIN
AME8815BEGTXXX
AME8815BECSXXX
AME8815BEBTXXX
TO-252 (DPAK-2) Top View
1 2 3
213
1. VIN
2. GND (heat sink)
3. VOUT
SOT-223 T op View
123
AME8815AEGTXXX
AME8815AECSXXX
AME8815AEBTXXX
1. VIN
2. GND (heat sink)
3. VOUT
TO-220 Top View
TO-220 Top View
1. GND
2. VOUT (heat sink)
3. VIN
1. VIN
2. GND (heat sink)
3. VOUT
AME, Inc.
3
AME8815 1.5A CMOS LDO
n Ordering Inform ati on
AME8815 X XXXXXX Voltage
150: V =1. 5V
180: V =1. 8V
250: V =2. 5V
330: V =3. 3V
475: V =4. 75V
500: V =5. 0V
Nu mber o f Pin
S: 2
T: 3
Package
B: TO-220
C: TO-252
D: TO-263
G: SOT-223
Operating Temperature
C: 0oC to 70oC
E: -40oC to 85oC
M: -40oC to 125oC
Pi n Confi guration
P l eas e consult A M E s al es office or aut horized Rep. /Dist r. For ot her out put vol tage and pac k age ty pe availbi l i t y.
AME, Inc.
4
1.5A CMOS LDO
AME8815
n O rderi ng I nf ormat i on
Part Num ber M arking Output Packa ge Ope rating Te m p.
AME8815AEBT150 AME 8815
AEBT150
yyww 1.50 TO-220 -40oC to +85oC
AME8815AEBT180 AME8815
AEBT180
yyww 1.80 TO-220 -40oC to +85oC
AME8815AEBT250 AME8815
AEBT250
yyww 2.50 TO-220 -40oC to +85oC
AME8815AEBT330 AME8815
AEBT330
yyww 3.30 TO-220 -40oC to +85oC
AME8815AEBT475 AME8815
AEBT475
yyww 4.75 TO-220 -40oC to +85oC
AME8815AEBT500 AME8815
AEBT500
yyww 5.00 TO-220 -40oC to +85oC
AME8815AECS150 AME8815
AECS150
yyww 1.50 TO-252 -40oC to +85oC
AME8815AECS180 AME8815
AECS180
yyww 1.80 TO-252 -40oC to +85oC
AME8815AECS250 AME8815
AECS250
yyww 2.50 TO-252 -40oC to +85oC
AME8815AECS330 AME8815
AECS330
yyww 3.30 TO-252 -40oC to +85oC
AME8815AECS475 AME8815
AECS475
yyww 4.75 TO-252 -40oC to +85oC
AME8815AECS500 AME8815
AECS500
yyww 5.00 TO-252 -40oC to +85oC
AME, Inc.
5
AME8815 1.5A CMOS LDO
n Orderi ng Inform ati on
Part Num ber M arking Output Packa ge Ope rating Te m p.
AME8815AEDS150 AME8815
A EDS 150
yyww 1.50 TO-263 -40oC to +85oC
AME8815AEDS180 AME8815
AEDS180
yyww 1.80 TO-263 -40oC to +85oC
AME8815AEDS250 AME8815
AEDS250
yyww 2.50 TO-263 -40oC to +85oC
AME8815AEDS330 AME8815
AEDS330
yyww 3.30 TO-263 -40oC to +85oC
AME8815AEDS475 AME8815
AEDS475
yyww 4.75 TO-263 -40oC to +85oC
AME8815AEDS500 AME8815
AEDS500
yyww 5.00 TO-263 -40oC to +85oC
AME8815AEGT150 ASPww 1.50 SOT-223 -40oC to +85oC
AME8815AEGT180 AQUww 1.80 SOT-223 -40oC to +85oC
AME8815AEGT250 APRww 2.50 SOT-223 -40oC to +85oC
AME8815AEGT330 AKCww 3.30 SOT-223 -40oC to +85oC
AME8815AEGT475 AQRww 4.75 SOT-223 -40oC to +85oC
AME8815AEGT500 AQSww 5.00 SOT-223 -40oC to +85oC
AME, Inc.
6
1.5A CMOS LDO
AME8815
n Orderi ng Inform ati on
Part Num ber M arking Output Packa ge Ope rating Te m p.
AME8815BEBT150 AME 8815
BEBT150
yyww 1.50 TO-220 -40oC to +85oC
AME8815BEBT180 AME8815
BEBT180
yyww 1.80 TO-220 -40oC to +85oC
AME8815BEBT250 AME8815
BEBT250
yyww 2.50 TO-220 -40oC to +85oC
AME8815BEBT330 AME8815
BEBT330
yyww 3.30 TO-220 -40oC to +85oC
AME8815BEBT475 AME8815
BEBT475
yyww 4.75 TO-220 -40oC to +85oC
AME8815BEBT500 AME8815
BEBT500
yyww 5.00 TO-220 -40oC to +85oC
AME8815BECS150 AME8815
BECS150
yyww 1.50 TO-252 -40oC to +85oC
AME8815BECS180 AME8815
BECS180
yyww 1.80 TO-252 -40oC to +85oC
AME8815BECS250 AME8815
BECS250
yyww 2.50 TO-252 -40oC to +85oC
AME8815BECS330 AME8815
BECS330
yyww 3.30 TO-252 -40oC to +85oC
AME8815BECS475 AME8815
BECS475
yyww 4.75 TO-252 -40oC to +85oC
AME8815BECS500 AME8815
BECS500
yyww 5.00 TO-252 -40oC to +85oC
AME, Inc.
7
AME8815 1.5A CMOS LDO
n Orderi ng Inform ati on
Part Num ber M arking Output Packa ge Ope rating Te m p.
AME8815BEDS150 AME8815
B EDS 150
yyww 1.50 TO-263 -40oC to +85oC
AME8815BEDS180 AME8815
BEDS180
yyww 1.80 TO-263 -40oC to +85oC
AME8815BEDS250 AME8815
BEDS250
yyww 2.50 TO-263 -40oC to +85oC
AME8815BEDS330 AME8815
BEDS330
yyww 3.30 TO-263 -40oC to +85oC
AME8815BEDS475 AME8815
BEDS475
yyww 4.75 TO-263 -40oC to +85oC
AME8815BEDS500 AME8815
BEDS500
yyww 5.00 TO-263 -40oC to +85oC
AME8815BEGT150 AJYww 1.50 SOT-223 -40oC to +85oC
AME8815BEGT180 AJZww 1.80 SOT-223 -40oC to +85oC
AME8815BEGT250 AKBww 2.50 SOT-223 -40oC to +85oC
AME8815BEGT330 AKDww 3.30 SOT-223 -40oC to +85oC
AME8815BEGT475 AMNww 4.75 SOT-223 -40oC to +85oC
AME8815BEGT500 AQTww 5.00 SOT-223 -40oC to +85oC
AME, Inc.
8
1.5A CMOS LDO
AME8815
n
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n Absolute Maximum Ratings:
Parameter Maximum Unit
In p u t Vo l ta ge 8 V
Out put Current PD / (VIN - VO)mA
Out put V olt age GND - 0.3 t o V IN + 0.3 V
E SD Cl assi fic ati on B
Cauti on: S t res s above the l is t ed ab sol ute m axim um rat ing m ay c aus e permanet dam age to t he device.
n
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n Recomme nded operating Conditions:
Parameter Rating Unit
A m bient Tem perature Range -40 to + 85 oC
Junc t ion Tem perat ure -40 to + 125 oC
n
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n The rma l Information
Maximum Unit
SOT-223 160
TO -252 (DP A K ) 90
D2PAK 60
TO-220 50
SOT-223 625
TO -252 (DP A K ) 1200
D2PAK 2800
TO-220 3000
150 oC
300 oC
M ax im um Lead Tem perature ( 10 S ec )
Int ernal P ower Dis s i pation (P D)
(∆T = 1 0 0 oC)
Thermal Resistance (θja)oC / W
mW
Parameter
M ax im um Junc t ion Tem perat ure
AME, Inc.
9
AME8815 1.5A CMOS LDO
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n Electrical Specifications
Parameter Symbol Min Typ Max Units
Input V ol tage V IN Note 1 7 V
Output Voltage Accuracy VO-1.5 1.5 %
1.4V<VO(NOM)<=2.0V 1300
Dropout Vol tage V DROPOUT 2.0V<VO(NOM)<=2.8V 800
2.8V<VO(NOM) 600
Output Current IO1500 mA
Current Li m i t ILIM 1500 2000 mA
S hort Ci rcuit Current ISC 750 mA
Qui escent Current IQ45 70 µA
Ground P i n Current IGND 45 µA
VO < 2. 0V -0. 15 0. 15 %
4. 0V > V O >= 2.0V -0. 1 0.02 0. 1 %
4. 0V < = V O-0.4 0.4 %
Load Regulati on RE GLOAD -1 0.2 1 %
Over Temerature S hutdown OTS 150 oC
Over Temerature Hysterisis OTH 30 oC
VO Tem perat ure Coeffici ent TC 30 ppm/oC
f=1kHz 50
PSRR f=10kHz 20 dB
f=100kHz 15
Note1:VIN(min)=VOUT+VDROPOUT
Test Condition
IO=1mA
V
IN
= V
O(nom)
+2V, TA = 25
o
C unless otherwise noted
IO= 1m A t o 1500m A
S ee
chart mV
VO>1.2V
VO>1.2V
IO=1.5A
VO=VONOM -2.0%
VO<0.4V
IO=0mA
µVrms
P ower Supply Rejecti on IO= 100m A
CO=4.7µF
Output Voltage Noise eN f=10Hz t o 100kHz
IO=10mA Co=4.7µF30
Lin e Regul ation RE G LINE IO=1mA
VIN=VO+1 to VO+2
IO= 1m A t o 1500m A
AME, Inc.
10
1.5A CMOS LDO
AME8815
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n Detailed Description
The AME8815 family of CMOS regulators contain a
PMOS pass transistor, voltage reference, error ampli-
fier, over-current protection, and thermal shutdown.
The P-channel pass transistor receives data from the
error amplifier , over-current shutdown, and thermal pro-
tection circuits. During normal operation, the error am-
plifier compares the output voltage to a precision refer-
ence. Over-current and Thermal shutdown circuits be-
come active when the junction temperature exceeds
150oC, or the current exceeds 2.2A. During thermal shut-
down, the output voltage remains low. Normal operation
is restored when the junction temperature drops below
120oC.
The AME8815 behaves like a current source when the
load reaches 2.2A. However, if the load impedance
drops below 0.3 ohms, the current drops back to 600mA
to prevent excessive power dissipation. Normal op-
eration is restored when the load resistance exceeds
0.75 ohms.
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n External Capacitors
The AME8815 is stable with an output capacitor to
ground of 4.7µF or greater . Ceramic capacitors have the
lowest ESR, and will offer the best AC performance.
Conversely, Aluminum Electrolytic capacitors exhibit
the highest ESR, resulting in the poorest AC response.
Unfortunately, large value ceramic capacitors are com-
paratively expensive. One option is to parallel a 0.1µF
ceramic capacitor with a 10µF Aluminum Electrolytic.
The benefit is low ESR, high capacitance, and low over-
all cost.
A second capacitor is recommended between the input
and ground to stabilize Vin. The input capacitor should
be at least 0.1µF to have a beneficial effect.
All capacitors should be placed in close proximity to
the pins. A "Quiet" ground termination is desirable.
This can be achieved with a "Star" connection.
AME, Inc.
11
AME8815 1.5A CMOS LDO
34.5
35
35.5
36
36.5
37
37.5
38
38.5
0 0.25 0.5 0.75 1 1.25 1.5
Ground Current vs. Load Current
Ground Current (µ
µµ
µA)
Load Current (mA)
V
IN
= 2.5V
V
OUT
= 1.5V
10
15
20
25
30
35
40
45
50
2345678
Ground Current vs. V
IN
Ground Current (µ
µµ
µA)
V
IN
(V)
I
OUT
= 140mA
V
OUT
= 1.5V
0
0.2
0.4
0.6
0.8
1
1.2
0 0.3 0.6 0.9 1.2 1.5 1.8
Dropout Voltage vs. I
LOAD
Dropout Voltage (V)
I
LOAD
(A)
1.8
1.5
2.0
2.1
2.8
3.3
V
OUT
=
0
0.2
0.4
0.6
0.8
1
02468
Dropout Voltage vs. V
OUT
Dropout Voltage (V)
V
OUT
(V)
I
LOAD
=1.5A
I
LOAD
=1.0A
I
LOAD
=0.5A
25
27
29
31
33
35
37
39
41
-45 -5 25 55 85 115
Temperature (0C)
Quiescent Current @ 5V
(uA)
Quiescent Current vs. Temperature
AME, Inc.
12
1.5A CMOS LDO
AME8815
2.475
2.480
2.485
2.490
2.495
2.500
-45-5255585115
Temperature (0C)
Output Voltage (V)
V
OUT
vs. Temperature (2.5V)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
-45 -5 25 55 85 115
Temperature (0C)
Load Regulation (%)
Load Regulation vs. Temperature
0
50
100
150
200
250
300
350
400
0.3 0.6 0.9 1.2 1.5
Load Current (A)
Dropout Voltage @
1.5A (mV)
Dropout Voltage vs. Load Current
(2.5V)
115
0
C
85
0
C
55
0
C
25
0
C
-5
0
C
-45
0
C
AME, Inc.
13
AME8815 1.5A CMOS LDO
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
2345678
Short Circuit Current VS. V
IN
Short Circuit Current (A)
V
IN
(V)
C
IN
= 4.7
µ
F
C
OUT
= 4.7
µ
F
Overtemperature Shutdown
VOUT 1V/DIV IOUT 1A/DIV
Time 100mS/DIV
0V
0A
V
IN
= 4V
C
IN
= 4.7
µ
F
C
OUT
= 4.7
µ
F
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.6
2.8
3
2345678
Current Limit Vs. V
IN
Current Limit (A)
V
IN
(V)
C
IN
= 4.7
µ
F
C
OUT
= 4.7
µ
F
V
OUT
= 1.8V
Current Limit Response
ILOAD 1A/DIV VOUT 1V/DIV
Time 1mS/DIV
I
LIM
I
SC
0A
0V
V
IN
= 5V
C
IN
= 4.7
µ
F
C
OUT
= 4.7
µ
F
Transient Line Response
VOUT (50mV/DIV)
VIN (2V/DIV)
Time (20
µ
µµ
µ
S/DIV)
C
IN
= 4.7
µ
F
C
OUT
= 4.7
µ
F
T
R
= T
F
= 1
µ
S
VOUT = 1.5V
0V
Load Step 40mA to 1.5A
ILOAD 1A/DIVVOUT 10mV/DIV
Time 500
µ
µµ
µ
S/DIV
0A
C
IN
= 4.7
µ
F
C
OUT
= 4.7
µ
F
V
IN
= 4.0V
V
OUT
= 1.8V
AME, Inc.
14
1.5A CMOS LDO
AME8815
0.01
0.1
1
10
100
1000
10000
0 250 500 750 1000 1250 1500
CLESR (Ω
ΩΩ
Ω)
Stable Region
Untested Region
Unstable Region
ILOAD (mA)
C
L
=5
µ
F
Stability vs. ESR vs I
LOAD
0.01
0.1
1
10
100
1000
10000
0 250 500 750 1000 1250 1500
ILOAD (mA)
Stable Region
Untested Region
Unstable Region
CLESR (Ω
ΩΩ
Ω)
C
L
=2
µ
F
Stability vs. ESR vs I
LOAD
0.001
0.01
0.1
1
10
100
1000
10000
0 250 500 750 1000 1250 1500
Stable Region
Untested Region
Unstable Region
ILOAD (mA)
CLESR (Ω
ΩΩ
Ω)
C
L
=10
µ
F
Stability vs. ESR vs I
LOAD
AME, Inc.
15
AME8815 1.5A CMOS LDO
nn
nn
n Package Dimension
TO-220
SOT-223
αMIN MAX MIN MAX
A 1.50 1.80 0.0591 0.0709
A10.02 0.10 0.0008 0.0039
B 0.60 0.84 0.0236 0.0330
B12.90 3.15 0.1140 0.1240
C 0.24 0.38 0.0094 0.0150
D 6.30 6.71 0.2480 0.2640
E 3.30 3.71 0.1299 0.1460
e
e1
H 6.70 7.30 0.2638 0.2874
L
L1
L2
a0o10o0o10o
MILLIMETERS INCHES
SYMBOLS
2.30 BSC
4.60 BSC 0.0906 BSC
0.1811 BSC
0.91 M IN 0. 0358 MI N
2.00 MA X
0.06 BSC 0.0024 BSC
0.0787 MAX
MIN MAX MIN MAX
A 5.58 7.49 0.2197 0.2949
C 3.56 4.83 0.1400 0.1900
D 0.51 1.40 0.0200 0.0550
E 0.31 1.14 0.0120 0.0450
G 9.65 10.67 0.3800 0.4200
I 3.53 4.09 0.1390 0.1610
K 0.51 1.14 0.0200 0.0450
M 1.14 1.78 0.0449 0.0700
N 2.29 2.79 0.0900 0.1100
O 12.70 14.73 0.5000 0.5800
P 14.22 16.51 0.5600 0.6500
SYMBOLS MILLIMETERS INCHES
AME, Inc.
16
1.5A CMOS LDO
AME8815
nn
nn
n Package Dimension
TO-252
TO-252
Top View Side View
1 2 3
Top View Side View
1 2 3
MIN MAX MIN MAX
A 0.40 0.60 0.0157 0.0236
B 1.60 2.00 0.0630 0.0787
C 0.50 - 0.0197 -
D 0.40 0.60 0.0157 0.0236
E 6.35 6.80 0.2500 0.2677
F 5.33 6.30 0.2098 0.2480
G 2.20 3.00 0.0866 0.1181
H 1.98 2.50 0.0780 0.0984
J 0.61 0.97 0.0240 0.0382
K 5.04 5.64 0.1984 0.2220
L 0.40 2.03 0.0157 0.0799
* : Ty pical value
NOTES :
1. CONTROLLING DIMENSION : M ILLIMETERS .
2. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNES S
MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE
MATERIAL.
SYMBOLS MILLIMETERS INCHES
MIN MAX MIN MAX
A 0.40 0.60 0.0157 0.0236
B 1.60 2.00 0.0630 0.0787
C 0.50 - 0.0197 -
D 0.40 0.60 0.0157 0.0236
E 6.35 6.80 0.2500 0.2677
F 5.33 6.30 0.2098 0.2480
G 2.20 3.00 0.0866 0.1181
H 1.98 2.50 0.0780 0.0984
J 0.61 0.97 0.0240 0.0382
K 5.04 5.64 0.1984 0.2220
L 0.40 2.03 0.0157 0.0799
* : T y pical v alu e
NOTES :
1. CONTROL LING DIMEN SION : MILLIMETERS.
2. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS
MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE
MATERIAL.
SYMBOLS MILLIMETERS INCHES
Or
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. , January 2002
Document: 2013-DS8815-E
U.S. Headquarters Corporate Headquarters
Analog Microelectronics, Inc. AME, Inc.
3100 De La Cruz Blvd. Suite 201 2F, 189 Kang-Chien Road, Nei-Hu District
Santa Clara, CA. 95054-2046 Taipei 114, Taiwan, R.O.C.
Tel : (408) 988-2388 Tel : 886 2 2627-8687
Fax: (408) 988-2489 Fax : 886 2 2659-2989
www.ame.com.tw
E-Mail: info@ame.com.tw
