AME8827/1A CMOS LDO

AME
AME8827
n General Description
The AME8827 family of positive, CMOS linear regulators and provide low dropout voltage (340mV @ 1A) and
excellent PSRR, thus making them ideal for power-saving systems. These rugged devices have both Thermal
Shutdown, and Current limit to prevent device failure under the "Worst" of operating conditions.
Low Dropout 1A CMOS Regulator
n Typical Application
EN
l Low Dropout Voltage:340mV @ 1A
VOUT
OUT
IN
GND
C1
1µF
The AME8827 is stable with an output capacitance of
4.7µF or larger.
n Features
AME8827
VIN
C2
4.7µF
n Function Block Diagram
IN
OUT
l Guaranteed 1A Drive current
l Over-Temperature Shutdown
Overcurrent
Shutdown
l Current Limiting protection
l Excellent PSRR : 60dB(typ.)
Thermal
Shutdown
l Factory Pre-set Output Voltages
R1
l Low Temperature Coefficient
l Input Voltage Range (2.5V - 5.5V)
l Output Voltage Range (1.2V - 3.6V)
l All AME's Green Products Meet RoHS
Bandgap
Reference
R2
GND
Standards
n Applications
l Motherboard, Desktop, and Computer
Peripherals
l LCD monitor
l Handheld Device
l Data-communication
Rev.A.11
1
AME
AME8827
Low Dropout 1A CMOS Regulator
n Pin Configuration
SOT-223
Top View
TO-252-2
Top View
AME8827-AGTxxx
AME8827-ACSxxx
1. IN
1. IN
2. GND (TAB)
AME8827
2. GND (TAB)
AME8827
3. OUT
1
2
3. OUT
3
Die Attach:
2
1
3
Conductive Epoxy
Conductive Epoxy
SOT-223
Top View
SOP-8
Top View
AME8827-BGTxxx
AME8827
2
8
7
6
5
AME8827-AHAxxx
1. GND
1. EN
2. OUT (TAB)
2. IN
3. IN
1
Die Attach:
AME8827
3. OUT
4. NC
5. GND
3
Die Attach:
6. GND
Non-Conductive Epoxy
7. GND
1
2
3
4
8. GND
Die Attach:
Conductive Epoxy
SOP-8/PP
Top View
8
7
6
5
AME8827-BZAxxx
1. EN
2. IN
3. OUT
4. NC
AME8827
5. GND
6. GND
7. GND
1
2
3
4
8. GND
Die Attach:
Conductive Epoxy
Note: The area enclosed by dashed line represents Exposed Pad and connect to GND.
2
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Pin Description
Pin Name
IN
Rev.A.11
Pin Description
Input voltage pin; should be decoupled with 1µF or greater capacitor.
GND
Ground connection pin.
OUT
LDO voltage regulator output pin; should be decoupled with a 4.7µF or greater value low ESR
ceramic capacitor.
EN
Enable pin.
When pulled low, the PMOS pass transistor turns off, current consuming less than 10µA.
NC
No connection.
3
AME
AME8827
Low Dropout 1A CMOS Regulator
n Ordering Information
AME8827 - x x x xxx
Output Voltage
Number of Pins
Package Type
Pin Configuration
Package
Type
Pin Configuration
A
(SOT-223)
A
(TO-252-2)
B
(SOT-223)
A
(SOP-8)
B
(SOP-8/PP)
4
1. IN
2. GND
3. OUT
1. IN
2. GND
3. OUT
G:
C:
H:
Z:
SOT-223
TO-252
SOP
SOP/PP
Number of
Pins
T: 3
S: 2
A: 8
Output Voltage
120:
125:
150:
180:
250:
300:
330:
1.2V
1.25V
1.5V
1.8V
2.5V
3.0V
3.3V
1. GND
2. OUT
3. IN
1. EN
2. IN
3. OUT
4. NC
5. GND
6. GND
7. GND
8. GND
1. EN
2. IN
3. OUT
4. NC
5. GND
6. GND
7. GND
8. GND
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Available Options
Part Number
Marking*
Output
Voltage
Package
Operating Ambient
Temperature Range
AME8827-AGT120
A8827
AKyMXX
1.2V
SOT-223
-40OC to +85OC
AME8827-AGT180
A8827
AIyMXX
1.8V
SOT-223
-40OC to +85OC
AME8827-AGT250
A8827
AGyMXX
2.5V
SOT-223
-40OC to +85OC
AME8827-AGT330
A8827
AByMXX
3.3V
SOT-223
-40OC to +85OC
AME8827-ACS120
A8827
BKyMXX
1.2V
TO-252-2
-40OC to +85OC
AME8827-ACS125
A8827
BRyMXX
1.25V
TO-252-2
-40OC to +85OC
AME8827-ACS180
A8827
BIyMXX
1.8V
TO-252-2
-40OC to +85OC
AME8827-ACS250
A8827
BGyMXX
2.5V
TO-252-2
-40OC to +85OC
AME8827-ACS330
A8827
BByMXX
3.3V
TO-252-2
-40OC to +85OC
AME8827-BGT120
A8827
EKyMXX
1.2V
SOT-223
-40OC to +85OC
AME8827-BGT150
A8827
EJyMXX
1.5V
SOT-223
-40OC to +85OC
AME8827-BGT180
A8827
EIyMXX
1.8V
SOT-223
-40OC to +85OC
AME8827-BGT250
A8827
EGyMXX
2.5V
SOT-223
-40OC to +85OC
AME8827-BGT330
A8827
EByMXX
3.3V
SOT-223
-40OC to +85OC
AME8827-AHA330
A8827
FByMXX
3.3V
SOP-8
-40OC to +85OC
AME8827-BZA330
A8827
GByMXX
3.3V
SOP-8/PP
-40OC to +85OC
Note:
1. The first 2 places represent product code. It is assigned by AME such as AK.
2. y is year code and is the last number of a year. Such as the year code of 2008 is 8.
3. A bar on top of first letter represents Green Part such as A8827.
4. The last 3 places MXX represent Marking Code. It contains M as date code in "month", XX as LN code and
that is for AME internal use only. Please refer to date code rule section for detail information.
5. Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package
type.
Rev.A.11
5
AME
AME8827
Low Dropout 1A CMOS Regulator
n Absolute Maximum Ratings
Parameter
Symbol
Maximum
Unit
Input Voltage
VIN
-0.3 to 6
V
Output Current
IOUT
PD /(V IN -V OUT)
mA
Output Voltage
VOUT
GND-0.3 to VIN +0.3
V
B*
ESD Classification
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM B:2000V~3999V
n Recommended Operating Conditions
Parameter
6
Symbol
Rating
Ambient Temperature Range
TA
-40 to +85
Junction Temperature Range
TJ
-40 to +125
Storage Temperature Range
TSTG
-65 to +150
Unit
o
C
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Thermal Information
Parameter
Package
Symbol
Conductive Epoxy
Thermal Resistance*
(Junction to Case)
Thermal Resistance
(Junction to Ambient)
Die Attach
Non-Conductive
Epoxy
Non-Conductive
Epoxy
θJC
31
o
Non-Conductive
Epoxy
Thermal Resistance*
(Junction to Case)
Thermal Resistance
(Junction to Ambient)
θJA
135
900
PD
mW
800
θJC
5
o
θJA
90
Internal Power Dissipation
PD
1200
Thermal Resistance**
(Junction to Case)
θJC
60
Thermal Resistance
(Junction to Ambient)
TO-252-2
Conductive Epoxy
θJA
150
Internal Power Dissipation
PD
810
Thermal Resistance*
(Junction to Case)
θJC
19
Thermal Resistance
(Junction to Ambient)
Conductive Epoxy
Conductive Epoxy
Internal Power Dissipation
Solder Iron (10 Sec)***
θJA
84
PD
1450
350
C/W
mW
o
SOP-8/PP
C/W
mW
o
SOP-8
C/W
120
Conductive Epoxy
Internal Power Dissipation
Unit
25
Conductive Epoxy
SOT-223
Maximum
C/W
mW
o
C
* Measure θJC on backside center of tab.
** Measure θJC on center of molding compound if IC has no tab.
*** MIL-STD-202G 210F
Rev.A.11
7
AME
AME8827
Low Dropout 1A CMOS Regulator
n Electrical Specifications
VIN = VOUT(NOM) + 0.5V, ( for VOUT < 2V, VIN=2.5V ), VEN =VIN, IOUT =1mA, and COUT = 4.7µF, CIN=1µF unless otherwise
noted. Typical values are at TA = 25oC.
Parameter
Input Voltage
Output Accuracy
Symbol
Test Condition
Quiescent Current
Max
Units
(Note 1)
5.5
V
VOUT,ACC
-2
2
%
VDROP
IQ
2.0V
2.5V
430
500
IO=1A, 2.6V
3.0V
380
450
IO=1A, VOUT(NOM)>3.1V
340
400
VIN =5.5V, IOUT=1mA
70
110
-0.15
0.1
0.15
-0.1
0.02
0.1
-0.055
0.02
0.055
VOUT(NOM)
2.0
2.5V<VIN <3.5V
Line Regulation
REGLINE
(Note2)
IO=1A, 2.0V<V OUT(NOM)
for VOUT
∆ VOUT
×100%
∆V IN
VOUT
Typ
VIN
IO=1A, VOUT(NOM)
Dropout Voltage
Min
for 2.0V<VOUT
2.8V
VOUT+1V<VIN <VOUT+2V
for VOUT>2.8V
VOUT+1V<VIN <VOUT+2V
mV
µA
%/V
Load Regulation
∆ VOUT
×100%
VOUT
∆IOUT
VIN=VOUT+1V
-0.001 0.0005 0.001 %/mA
10mA< ILOAD <1A
Output Current Limit
ILIM
VOUT=0.9 x VOUT(NOM)
Short Circuit Current
Isc
VIN =VOUT(NOM)+1V,
Vo<0.6V
1.3
COUT=4.7µF, F=1KHz,
1.5
A
0.6
A
60
dB
Power Supply Rejection Ratio
PSRR
Enable High (enabled)
VEN(HI)
VIN(MIN)
VIN
5.5V
1.4
VIN
V
Enable Low (shutdown)
VEN(LO)
VIN(MIN)
VIN
5.5V
0
0.4
V
0.1
1
µA
5
10
µA
Enable Pin Current (enabled)
Shutdown Current
8
REGLOAD
IEN
ISHDN
IOUT=100mA
VEN = VIN
VEN =0V, VIN(MIN)
VIN
5.5V
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Electrical Specifications (Contd.)
VIN = VOUT(NOM) + 0.5V, ( for VOUT < 2V, VIN=2.5V ), VEN =VIN, IOUT =1mA, and COUT = 4.7µF, CIN=1µF unless otherwise
noted. Typical values are at TA = 25oC.
Parameter
Thermal Shutdown Temperature
Symbol
TSHDN
Test Condition
Shutdown, temperature
increasing
Restore, temperature
decreasing
Min
Typ
Max
Units
150
o
C
130
Note 1: VIN(MIN)=VOUT+VDROP or VIN(MIN)=2.5V, whichever is greater.
Note 2: For VOUT below 2.0V, Dropout Voltage is the input (MIN) to output differential.
Rev.A.11
9
AME
AME8827
Low Dropout 1A CMOS Regulator
n Detailed Description
The AME8827 is low-dropout; low quiescent current
linear regulator designed for motherboard, notebook and
LCD monitor applications. The output voltage range from
1.2V to 3.6V, and can drive 1A loading current.
Capacitor Selection and Regulator Stability
Use 1µF for input capacitor and 4.7µFor great for output capacitor on the AME8827. Larger input capacitor
value and low ESR provide better supply noise rejection
and improve line transient response. To reduce output
noise and load transient response, use output capacitor
greater than 4.7µF.
Calculating the Maximum Output Power
The maximum output power of the AME8827 is limited
by the maximum power dissipation of the package. By
calculation the power dissipation of the package as a
function of the input voltage, output voltage and output
current, the maximum input voltage can be obtained. The
maximum power dissipation should not exceed the
package's maximum power rating.
PMAX = ( VIN.MAX - VOUT ) x IOUT
Where:
VIN.MAX = maximum input voltage
PMAX = maximum power dissipation of the package
10
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Characterization Curve(For reference only)
VOUT vs. Temperature
Quiesent Current vs Temperature
130
1.23
120
1.22
110
Quiesent Curr ent (µA)
1.24
V OUT (V)
1.22
1.21
1.20
1.19
1.18
1.18
V OUT = 1.2V
IOUT = 1mA
1.17
100
90
-25
0
+25
+50
+75
+100
IOUT =1A
80
I OUT =1mA
70
60
50
40
1.16
-50
V OUT = 3.3V
30
- 50
+125
-25
0
+75
+100
Temperature ( C)
Current Limit vs Input Voltage
Current Limit vs Input Voltage
+125
3500
V OUT = 1.2V
3300
3300
V OUT = 3.3V
3100
Current Limit (mA)
3100
Current Limit (mA)
+50
Temperature ( C)
3500
2900
2700
2500
2300
2100
2900
2700
2500
2300
2100
1900
1900
1700
1700
1500
2.5
4.5
3.5
5.5
1500
4.3
4.7
5.1
5.5
Input Voltage (V)
Input Voltage (V)
Power Supply Rejection Ratio
Dropout Voltage vs Load Current
500
100
V OUT = 3.3V
IOUT = 0mA~1000mA
90
VOUT = 3.3V
80
400
70
O
TA=125 C
PSRR (dB)
Dropout Voltage (mV)
+25
o
o
300
200
IOUT=10mA
60
50
40
IOUT =100mA
30
TA=25O C
20
100
O
TA=-40 C
10
0
0
0
200
400
600
Load Current (mA)
Rev.A.11
800
1000
1K
10K
100K
1M
Frequency (Hz)
11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Characterization Curve(For reference only)
Load Transient Response
V OUT (50mV/DIV)
V IN = 2.5V~3.5V
VOUT = 1.2V
IOUT = 10mA
V OUT = 1.2V
IOUT = 10mA~1000mA
IOUT (1A/DIV)
VOUT (10mV/DIV)
V IN(1V/DIV)
Line Transient Response
TIME (100µSec/DIV)
TIME (100µSec/DIV)
IOUT (500mA/DIV)
VOUT (2V/DIV)
Short Circuit Current
VOUT = 3.3V
CIN = 10µF
COUT = 4.7µF
TIME (100µSec/DIV)
12
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Date Code Rule
Month Code
1: January 7: July
2: February 8: August
3: March
9: September
4: April
A: October
5: May
B: November
6: June
C: December
n Tape & Reel Dimensions
SOT-223
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.A.11
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-223
12.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
13
AME
AME8827
Low Dropout 1A CMOS Regulator
n Tape & Reel Dimensions
TO-252-2
P
PIN 1
W
AME
AME
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TO-252-2
16.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
SOP-8
P
PIN 1
W
AME
AME
Carrier Tape, Number of Components Per Reel and Reel Size
14
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOP-8
12.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Tape & Reel Dimensions
SOP-8/PP
P
PIN 1
W
AME
AME
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.A.11
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOP-8/PP
12.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
15
AME
AME8827
Low Dropout 1A CMOS Regulator
n Package Dimension
SOT-223
Top View
Side View
SYMBOLS
D
B1
C
13 o (4X)
H
E
PIN 1
MILLIMETERS
MIN
MAX
MIN
MAX
A1
0.01
0.10
0.0004
0.0039
B
0.60
0.84
0.0236
0.0330
B1
2.90
3.15
0.1140
0.1240
C
0.24
0.38
0.0094
0.0150
D
6.20
6.71
0.2441
0.2640
E
3.30
3.71
0.1299
0.1460
2.30 BSC
e
e
Front View
13 o (4X)
A1
16
0.0906 BSC
F
1.40
1.80
0.0551
0.0709
H
6.70
7.30
0.2638
0.2874
θ
F
INCHES
0
o
10
o
0
o
10
o
B
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Package Dimension
TO-252-2
TOP VIEW
SIDE VIEW
E
K
B
A
L
D1
F
E1
G
PIN1
C
H
D
J
MILLIMETERS
INCHES
SYMBOLS
MIN
MAX
MIN
MAX
A
0.43
0.58
0.0169
0.0230
B
1.60
1.95
0.0630
0.0768
C
0.51
1.78
0.0200
0.0701
D
0.43
0.60
0.0169
0.0236
E
6.35
6.80
0.2500
0.2677
F
G
5.36
7.20
0.2110
0.2835
2.20
3.00
0.0866
0.1181
H
* 2.30
*0.0906
J
0.50
0.97
0.0197
0.0380
K
5.20
5.50
0.2047
0.2165
L
1.35
1.65
0.0531
0.0650
D1
E1
3.81
3.80 REF
5.10
0.1496 REF
0.1500
0.2008
*: 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.
Rev.A.11
17
AME
AME8827
Low Dropout 1A CMOS Regulator
n Package Dimension
SOP-8
Top View
Side View
SYMBOLS
MAX
MIN
MAX
A
1.35
1.75
0.0531
0.0689
A1
0.10
0.30
0.0039
0.0118
A2
E
L
PIN 1
D
1.473 REF
o
0.33
0.51
0.0130
0.0201
C
0.17
0.25
0.0067
0.0098
D
4.70
5.33
0.1850
0.2098
E
3.80
4.00
0.1496
0.1575
1.27 BSC
e
A
0.0500 BSC
L
0.40
1.27
0.0157
0.0500
H
5.80
6.30
0.2283
0.2480
y
-
0.10
-
0.0039
θ
0
o
8
o
0
o
8
o
A1
A2
7 ( 4X)
0.0580REF
B
e
Front View
INCHES
MIN
C
H
MILLIMETERS
B
18
Rev.A.11
AME
AME8827
Low Dropout 1A CMOS Regulator
n Package Dimension
SOP-8/PP
TOP VIEW
SIDE VIEW
D1
θ
SYMBOLS
E1
E 2
E
L1
C
PIN 1
D
e
A 1
FRONT VIEW
Rev.A.11
A
A 2
b
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
A
1.350
1.750
0.053
0.069
A1
0.000
0.150
0.000
0.006
A2
1.350
1.600
0.053
0.063
C
0.100
0.250
0.004
0.010
E
3.750
4.150
0.148
0.163
E1
5.700
6.300
0.224
0.248
L1
0.300
1.270
0.012
0.050
b
0.310
0.510
0.012
0.020
D
4.720
5.120
0.186
0.202
e
1.270 BSC
o
0.050 BSC
o
o
o
θ
E2
2.150
2.513
0.085
0.099
D1
2.150
3.402
0.085
0.134
0
8
0
8
19
www.ame.com.tw
E-Mail: sales@ame.com.tw
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 2011
Document: 1271-DS8827-A.11
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989