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AME1117BCBT
Datasheet
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Analog Microelectronics AME1117DCGT, AME1117DCCT, AME1117DCBT, AME1117CCGT, AME1117CCBT Datasheet

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Analog Microelectronics, Inc.
AME1 117
nn
nGeneral Descriptions
nn
nn
nApplications
nn
l High Efficiency Linear Regulators l 5V to 3.3V Voltage Converter l Battery Charger l Post Regulators for Switching Supplies
1A Low Dropout Positive
V oltage Regulator
nn
nKey Features
nn
l Low dropout voltage ..............1.2V at 1A
l Adjustable or fixed voltages 2.5V , 3.3V , 5.0V
l Typical line regulation ....... 0.2%
l T ypical load regulation ...... 0.15%
l Adjust pin current less than 90µA l Overcurrent protection l Thermal protection l Available in TO-220, TO-252, SOT-223
nn
nFunctional Block Diagram
nn
Current Limiting
Amplifier
Therm al
Protection
Error
Amp.
Bandgap
Reference
Figure 1
ADJ/COM
Input
Output
nn
n Typical Application
nn
AME1117
GND
10µF Tan4.75V to 12V
Input range depends on V Please refer to electrical characteristics.
Figure 2
OUT
10µF Tan
Load
1
Analog Microelectronics, Inc.
AME1 117
nn
n Pin Configuration
nn
AME1117
ADJ/GND
V
OUT
1A Low Dropout Positive
V oltage Regulator
AME 1117
1
ADJ/GND
V
IN
V
2
OUT
3
V
IN
TO-220 Front View
AME 1117
1
ADJ/GND
TO-252 ( DPAK-2)
Front View
V
2
OUT
3
V
IN
SOT-223 Front View
AME1117
1
2
V
OUT
ADJ/GND
TO-252 ( DPAK-2)
Front View
3
V
IN
2
Analog Microelectronics, Inc.
AME1 117
nn
n Ordering Information
nn
Part Number Marking Output Voltage Package
AME1117ACGT ABEy ww ADJ AME1117BCGT AKEy ww 2.5 AME1117CCGT ABFyww 3.3 AME1117DCGT AKFyww 5.0
AME1117
AME1117ACCT
AME1117BCCT
AME1117CCCT
AME1117DCCT
AME1117ACBT
AME1117BCBT
AME1117CCBT
AME1117DCBT
ACCT
yyww
AME1117
BCCT
yyww
AME1117
CCCT
yyww
AME1117
DCCT
yyww
AME1117
ACBT
yyww
AME1117
BCBT
yyww
AME1117
CCBT
yyww
AME1117
DCBT
yyww
ADJ
2.5
3.3
5.0
ADJ
2.5
3.3
5.0
1A Low Dropout Positive
V oltage Regulator
SOT-223
TO-252
(DPAK-2)
TO-220
3
Analog Microelectronics, Inc.
AME1 117
nn
n Absolute Maximum Ratings
nn
Parameter
Input Volt age
Thermal Res i st ance (Juncti on to Cas e)
Thermal Res i st ance (Juncti on to Am bient )
Operating Junc tion Temperature Range T Storage Temperature Range
Lead Temperature (10 sec)
TO-220 2.5 TO-252 5
SOT-223 15
TO-220 50 TO-252 90
SOT-223 160
1A Low Dropout Positive
V oltage Regulator
Symbol Maximum Unit
T
T
V
IN
θ
JC
θ
JA
J
STG
LEAD
7V
o
C/W
0 to 125
-65 to 150
o
C
260
nn
n Electrical Characteristics
nn
AME1117AXXX
Parame ter Symbol Min. Typ. Max. Unit
Reference voltage V
Line regulation *
Load regulation
Dropout voltage V Current limit
Temp. coefficient Adjust pin current I Adjust pin
cu rrent c h ange Temperature s t abi li t y
Minimum load current RMS out put nois e Ripple rejection ratio
Reg
Reg
∆
VIN = 5V, IO = 10m A
REF
VIN = 4.75~7V, IO = 10m A TJ = 25oC
VIN = 5V, IO = 10m A ~1A
IO = 10m A ~1A, ∆Vo = ±1% VIN = 2.75~7V
VIN = 2.75~7V, IO = 10m A ~1A VIN = 2.75~7V, IO = 10m A ~1A
VIN = 2.75~7V, IO = 10m A ~1A, O ver Tem p. VIN = 5V, IO = 100m A, O ver Tem p.
VIN = 5V TJ = 25oC VIN = 5V, IO = 1A , Over Tem p .
LOAD
I
S
T
ADJ
I
ADJ
T
I
O
V R
LINE
D
C
S
N A
Test conditions
TJ = 25oC Over Temp. 1.225 1.250 1. 275
TJ = 25oC Over Temp. - 0.2 0.4
TJ = 25oC Over Temp . - 1.3 ­ Over Temp. 1.0 - - A
TJ = 25oC Over Temp . - 90
1.238 1.250 1.262
--0.2
- 0.05 0.3
-1.21.4
- 0.005 - %/”C
-55 -
µ
-
-0.5 %
-510mA
-0.003 -
60 72 - dB
50.2
%V
V
%
V
A
O
4
Analog Microelectronics, Inc.
AME1 117
1A Low Dropout Positive
V oltage Regulator
AME1117BXXX
Parameter Symbol Min. Typ. Max. Unit
Output voltage V
Line regulation Reg
Load regulation
Reg
Dropout volt age V
Current limit I Quies cent Current I
Temp. Coefficient Temperature stabil it y T
RMS ou t pu t noi se V
VIN = 5V, IO = 0A V
O
V
IN
VIN = 5V, IO = 0A~1A
IO = 0A~1A, ∆Vo = ±1%
VIN = 4.75~ 7V , O ver Temp. 1.0 - - A VIN = 5V, IO = 0A~1A, Over Temp. - 6 13 mA VIN = 4.75~ 7V , IO = 0A~ 1A - 0.005 - %/ ”C VIN = 5V, IO = 100mA, Over Temp. - 0.5 - % TJ = 25oC - 0.003 - %V
LOAD
S
Q
T
LIN E
D
C
S
N
Test conditions
T
= 25oC
J
Over Temp. 2.450 2.500 2.550
= 4.75~ 7V , IO = 0A TJ = 25oC
T
= 25oC
J
Over Temp. - 0.2 0.4 T
= 25oC-1.21.4
J
Over Temp. - 1.3 -
2.475 2.500 2.525
- - 0.2
- 0.05 0.3
%
V
O
Ripple reject ion rati o R
VIN = 5V, IO = 1A, Over Temp. 60 72 - dB
A
AME1117CXXX
Pa ram e ter S ymbol Min. Typ. Ma x. Unit
Output voltage V
Line regulation
Load regulation
Reg
Reg
Dropout volt age V
Current limit I Quies cent Current I
Temp. c oefficient Temperature stabil it y T
O
LINE
LOAD
D
S
Q
T
C
S
= 5V, IO = 0A
IN
VIN = 4.75~ 7V , IO = 0A TJ = 25oC- - 0.2
V
= 5V, IO = 0A~1A
IN
= 0A~1A, ∆Vo = ±1%
O
VIN = 4.75~ 7V , O ver Temp. 1.0 - - A VIN = 5V, IO = 0A~1A, Over Temp. - 6 13 mA VIN = 4.75~ 7V , IO = 0A~ 1A - 0.005 - %/ ”C VIN = 5V, IO = 100mA, Over Temp. - 0.5 - %
Test conditions
= 25oC
T
J
3.270 3.300 3.330
Over Temp. 3.234 3.300 3.366
T
= 25oC
J
- 0.05 0.3
Over Temp. - 0.2 0.4 T
= 25oC-1.21.4
J
Over Temp. - 1.3 -
V V
%
V I
RMS ou t pu t noi se V Ripple reject ion rati o R
*Line regulation test circuit
TJ = 25oC - 0.003 - %V
N
VIN = 5V, IO = 1A, Over Temp. 60 72 - dB
A
O
5
Analog Microelectronics, Inc.
AME1 117
1A Low Dropout Positive
V oltage Regulator
AME1117DXXX
Parament Symbol Min. Typ. Ma x. Unit
V
Output voltage VV
Load regulation Reg
Current limit I Quiescent Current I
Temp. coefficient Temperature stabi li t y T
LOAD
S
Q
T
C
S
O
LIN E
D
= 7V, IO = 0A
IN
= 7~9V, IO = 0A Line regulat ion Reg
V
IN
= 7V, IO = 0A~1A
V
IN
IO = 0A~1A, ∆Vo = ±1%
VIN = 7~10V , Over Temp. 1.0 - - A VIN = 7V, IO = 0A~1A, Over Temp. - 6 13 mA VIN = 7~10V, IO = 0A~ 1A - 0.005 - %/”C VIN = 7V, IO = 100m A, Over Temp. - 0.5 - %
Test condi tions
T
= 25oC
J
4.950 5.000 5.050
Over Temp. 4. 900 5.000 5.100
= 25oC
T
J
--0.3
Over Temp. - - 0.4
= 25oC
T
J
- 0.05 0.3
Over Temp. - 0.2 0.4 T
= 25oC-1.21.4
J
Over Temp. - 1.3 -
%
V Dropout volt age V
RMS out put noise V Ripple reject i on rati o R
V
IN
TJ = 25oC - 0.003 - %V
N
VIN = 7V, IO = 1A , Over Temp. 60 72 - dB
A
V
IN
OUT
OUT
ADJ
100
10
µ
10µ Tan
164
Tan
Figure 3
O
6
Analog Microelectronics, Inc.
)
)
)
AME1 117
nn
n Performance Characteristics
nn
1. Load Regulation
0.00
-0.05
-0.10
-0.15
-0.20
Output Voltage deviation (%
-0.25
-50-30-101030507090
Temperature (”C)
1A Low Dropout Positive
V oltage Regulator
3. T emperature Stablilty
1.252
1.250
1.248
1.246
1.244
1.242
Reference Voltage (V
1.240
1.238
-50 -25 0 25 50 75 100 125
Temperatur e (”C)
2. Short Circuit Current 4. Dropout Voltage
3.0
2.5
2.0
1.5
1.0
0.5
0.0
Output Short Circuit Current (A
12345678910
Input/Output Diff er ential Voltage(V)
1.25
1.20
1.15
1.10
1.05
1.00
Drop-out Voltage (V
0.95
0.90 0 0.2 0.4 0.6 0.8 1
Load Curr ent (A)
7
Analog Microelectronics, Inc.
A
AME1 117
5. Adjust Pin Current 7. Load Transient Response
45 40
A)
35
µ
30 25 20 15 10
Adjust Pin Current (
5 0
-50 -25 0 25 50 75 100 125
1A Low Dropout Positive
V oltage Regulator
Temperature(”C)
6. Minimum Operating Current 8. Line Transient Response
7
6
5
4
3
2
1
Minimum Operation Current (m
0
0123456789
Time (µS)
Input/Output Di ff er ential Voltage(V)
8
Analog Microelectronics, Inc.
AME1 117
nn
n Application Descriptions
nn
1. Output voltage adjustment
Like most regulators, the AME1117 regulates the output by comparing the output voltage to an inter­nally generated reference voltage. On the adjust­able version, the V
1.25V between V formed by R1 and R2 should be set to conduct 10mA (minimum output load). The output voltage is given by the following equation:
V
= V
OUT
REF
On fixed versions of AME1 1 17, the voltage divider is provided internally .
V
IN
C
1
V
OUT
IN
50µA
= V
I
ADJ
REF
is available externally as
REF
and ADJ. The voltage ratio
OUT
(1+
R2
) + I
ADJ
x R2
R1
OUT
ADJ
(1+
R2 R1
) + I
ADJ
V
x R2
REF
Figure 4
R1
R2
V
OUT
1A Low Dropout Positive
V oltage Regulator
3. Current Limit Protection
AME1 117 is protected against overload conditions. Current protection is triggered at typically 1.5A.
4. Stability and Load Regulation
AME1117 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.
Note: It is important that the ESR for this capacitor does not exceed 0.5Ω.
The output capacitor does not have a theoretical upper limit and increasing its value will increase stability. C 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 AME1117. When so connected, R tiplied by the divider ratio. For fixed output versions, the top of R1 is internally connected to the output. The ground pin can be connected to the low side of the load in order to eliminate ground loop errors.
= 100µF or more is typical for high
OUT
is not mul-
P
2. Thermal protection
AME1 1 17 has thermal protection which limits junction temperature to 150OC. However, device functionality is only guaranteed to a maximum junction temperature of +125OC. The power dissipation and junction temperature for AME1 117 in DPAK package are given by
PD = (VIN - V T
JUNCTION
Note: T
JUNCTION
= T
) x I
OUT
OUT
+ ( PD x θJA)
AMBIENT
must not exceed 125OC
R
P
Parasitic
Line Resistance
V
IN
IN
ADJ
OUT
Figure 5
R1 (Connect
R1 to case) R2
Connect
R2 to load
R
L
9
Analog Microelectronics, Inc.
AME1 1 17
5. Thermal Consideration
The AME1117 series contain thermal limiting cir­cuitry designed to protect itself from over-tem­perature conditions. Even for normal load condi­tions, maximum junction temperature ratings must not be exceeded. As mentioned 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 product series is electrically con­nected to the output. Therefore, if the case of the device must be electrically isolated, a thermally con­ductive spacer is recommended.
1A Low Dropout Positive
V oltage Regulator
10
Analog Microelectronics, Inc.
AME1 1 17
nn
n Advanced Applications
nn
Adjustable Output V oltage
VIN = 5V
10µF
**
10µF
1A Low Dropout Positive
V oltage Regulator
*
AME1117
V
IN
ADJ
R2
2K
V
R1 1K
OUT
VO = 1.5 ~ 3.45V
10µF
* VO = Vref (1 + R2/R1) + Iadj X R2 ** Optional for improved ripple rejection
Paralleling Regulators
V
IN
10µF
V
IN
V
IN
AME1117
GND
AME1117
GND
V
V
OUT
OUT
*
*
20m
20m
Ω
Ω
V
O
IO = 0 to 2A
10µF
* 20mΩ is ballast resistance The inter-connection of #18 wire could act as ballast resistance.
11
Analog Microelectronics, Inc.
AME1 1 17
Regulator with Reference
V
IN
10µF
10µF
**
V
AME1117
IN
V
OUT
ADJ
1K
Zener Diode or Voltage Reference
1A Low Dropout Positive
V oltage Regulator
*
V
O
10µF
= Vref + VZ (VZ is breakdown voltage of Zener Diode)
* V
O
** Optional for improved ripple rejection
Regulator with Reverse Diode Protection
V
IN
10µF
V
AME1117
IN
GND
V
OUT
*
V
100µF
O
12
Analog Microelectronics, Inc.
AME1 1 17
nn
n Package Dimension
nn
TO-220
1A Low Dropout Positive
V oltage Regulator
SY MBOLS
A 4.06 4.83 0.160 0.190 b 0.63 1.02 0.025 0.040
C1 0.35 0.60 0.0138 0.0236
D 14.22 14.99 0.056 0.590 E 9.66 10.54 0.385 0.415
e - 2.79 - 0.110 e1 4.83 5.33 0.190 0.210 e3 1.14 1.40 0.045 0.055
f 1.14 1.40 0.045 0.055
H1 5.94 6.55 0.234 0.258
K 2.29 2.92 0.090 0.115
CP 3.71 3.96 0.146 0.156
Q 2.62 2.87 0.103 0.113
L 12.70 14.27 0.500 0.5618
a 3D7D3D7D b1 1.14 1.52 0.0449 0.06
R
MILLIMETERS INCHES
MIN MA X MIN MAX
6.17 REF. 0.243 REF.
SOT-223
Notes :
1. Dimension C1 apply for tin plate finish.
2. For solder dip lead finish dimension C1 should be
0.015"-0.027 " (0 .38 -0 .69 )
SY MBO LS
α
A 1.50 1.80 0.0591 0.0709 A
1
B 0.60 0.838 0.0236 0.033 B
1
C 0.24 0.381 0.0094 0.0150
D 6.299 6.706 0.2480 0.2640
E 3.30 3.708 0.1299 0.1460
e
e
1
H 6.70 7.30 0.2638 0.2874 L
L
1
L
2
a
MILLIMETERS INCHES
MIN MAX MIN MAX
0.02 0.10 0.0008 0.0039
2.895 3.15 0.1140 0.1240
2.30 BSC
4.60 BSC
0.91 MIN 0.0360 MIN
2.00 MAX
0.06 BSC 0.0024 BSC
?
0
?
10
0.090 BSC
0.181 BSC
0.0787 MAX
?
0
10
?
13
Analog Microelectronics, Inc.
AME1 1 17
nn
n Package Dimension
nn
TO-252 (DPAK)
1A Low Dropout Positive
V oltage Regulator
SY MBOL S
A 0.45 0.5 8 0.0177 0.023 B 1.60 1.95 0.06 0.0768 C 0.51 - 0.02 ­D 0.45 0.60 0.0177 0.0236 E 6.40 6.80 0.252 0.2677
F 5.40 5.80 0.2126 0.2283 G 2.20 2.8 5 0.0866 0.1122 H - * 2.30 - * 0.0906
I - 0.90 - 0.0354
J - 0.97 - 0.038 K 5.20 5.50 0.20 0.22 L 0.89 2.03 0.035 0.08
* : Typical value
NOTES :
1. CONTROLLING DIMENSION : MILLIMETERS.
2. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL.
MILLIMETERS INCHES
MIN MAX MIN MAX
TO-252 (DPAK)
SY MBOL S
A 0.45 0.58 0.0177 0.02 3 B 1.60 1.95 0.06 0.0768 C 0.51 - 0.02 ­D 0.45 0.60 0.0177 0.0236 E 6.40 6.80 0.252 0.2677
F 5.40 5.80 0.2126 0.2283 G 2.20 2.85 0.0866 0.1122 H - * 2.30 - * 0.0906
I - 0.90 - 0.0354
J - 0.97 - 0.038 K 5.20 5.50 0.20 0.22 L 0.89 2.03 0.035 0.08
* : Typical value
NOTES :
1. CONTROLLING DIMENSION : MILLIMETERS.
2. MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS MINIMUM LEAD THICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL.
MILLIMETERS INCHES
MIN MAX MIN MAX
14
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Life Support Policy:
These products of Analog Microelectronics, Inc. are not authorized for use as critical components in life-
support devices or systems, without the express written approval of the president
of Analog Microelectronics, Inc.
Analog Microelectronics, 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.
Analog Microelectronics, Inc. , December, 2001
Document: 1014-DS1117-C
Corporate Headquarters Asia Pacific Headquarters
Analog Microelectronics, Inc. AME, Inc.
3100 De La Cruz Blvd. Suite 201 2F, 187 Kang-Chien Road, Nei-Hu Dist., 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
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