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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. The AME8827 is stable with an output capacitance of 4.7F or larger.
Low Dropout 1A CMOS Regulator
n Applications
l Motherboard, Desktop, and Computer Peripherals l LCD monitor l Handheld Device l Data-communication
n Typical Application
(Fixed Version)
n Features
l Low Dropout Voltage:340mV @ 1A l Guaranteed 1A Drive current l Over-Temperature Shutdown l Current Limiting protection l Excellent PSRR : 60dB(typ.) l Factory Pre-set Output Voltages 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 Standards
IN OUT
VIN IN
AME8827
OUT GND C1 1F
VOUT
C2 4.7F
n Function Block Diagram
(Fixed Version)
Overcurrent Shutdown
Thermal Shutdown R1
Bandgap Reference
R2
GND
Rev.A.02
1
AME
AME8827
n Pin Configuration
SOT-223 Top View AME8827-AGTxxx 1. IN TO-252-2 Top View AME8827-ACSxxx 1. IN
AME8827
Low Dropout 1A CMOS Regulator
AME8827
2. GND (TAB) 3. OUT
2. GND (TAB) 3. OUT
1
2
3
Die Attach: Conductive Epoxy
1
2
3
Die Attach: Conductive Epoxy
n Pin Description
Pin Name
IN GND OUT
Pin Description
Input voltage pin; should be decoupled with 1F or greater capacitor. Ground connection pin. LDO voltage regulator output pin; should be decoupled with a 4.7F or greater value low ESR ceramic capacitor.
2
Rev.A.02
AME
AME8827
n Ordering Information AME8827 - x x x xxx
Low Dropout 1A CMOS Regulator
Output Voltage Number of Pins Package Type Pin Configuration
Pin Configuration
Package Type G: SOT-223 C: TO-252
Number of Pins T: 3 S: 2
Output Voltage
A
(SOT-223)
1. IN 2. GND 3. OUT 1. IN 2. GND 3. OUT
A
(TO-252-2)
120: 150: 180: 250: 300: 330:
1.2V 1.5V 1.8V 2.5V 3.0V 3.3V
Rev.A.02
3
AME
AME8827
n Available Options
Part Number
AME8827-AGT120 AME8827-AGT180 AME8827-AGT250 AME8827-AGT330 AME8827-ACS120 AME8827-ACS180 AME8827-ACS250 AME8827-ACS330
Low Dropout 1A CMOS Regulator
Marking*
A8827 AKyMXX A8827 AIyMXX A8827 AGyMXX A8827 AByMXX A8827 BKyMXX A8827 BIyMXX A8827 BGyMXX A8827 BByMXX
Output Voltage
1.2V 1.8V 2.5V 3.3V 1.2V 1.8V 2.5V 3.3V
Package
SOT-223 SOT-223 SOT-223 SOT-223 TO-252-2 TO-252-2 TO-252-2 TO-252-2
Operating Ambient Temperature Range
-40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -40OC to +85OC -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.
4
Rev.A.02
AME
AME8827
n Absolute Maximum Ratings
Parameter
Input Voltage Output Current Output Voltage ESD Classification
Low Dropout 1A CMOS Regulator
Symbol
VIN IOUT VOUT
Maximum
-0.3 to 6 PD /(V IN -V OUT) GND-0.3 to VIN +0.3 B*
Unit
V mA V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. * HBM B:2000V~3999V
n Recommended Operating Conditions
Parameter
Ambient Temperature Range Junction Temperature Range Storage Temperature Range
Symbol
TA TJ TSTG
Rating
-40 to +85 -40 to +125 -65 to +150
Unit
o
C
Rev.A.02
5
AME
AME8827
n Thermal Information
Parameter
Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Internal Power Dissipation TO-252-2 Conductive Epoxy SOT-223 Conductive Epoxy
Low Dropout 1A CMOS Regulator
Package
Die Attach
Symbol
JC JA
Maximum
25
Unit
o
C/W
120
PD JC JA
900
mW
5
o
C/W
90
PD
1200
mW
o
Solder Iron (10 Sec)**
350
C
* Measure JC on backside center of tab. ** MIL-STD-202G 210F
6
Rev.A.02
AME
AME8827
n Electrical Specifications
VIN = VOUT(nom) + 0.5V, ( for VOUT < 2V, VIN=2.5V ), VEN =VIN, IOUT =1mA, and COUT = 4.7uF, CIN=1uF unless otherwise noted. Typical values are at TA = 25oC.
Parameter Input Voltage ADJ Input Bias Current ADJ Reference Voltage Output Accuracy Symbol VIN IADJ VREF VOUT,ACC IO=1A, VOUT(nom)O 2.0V Dropout Voltage VDROP IO=1A, 2.0V3.1V Quiescent Current IQ VIN =5.5V, IOUT=1mA for VOUTO 2.0 Line Regulation 2.5V2.8V VOUT+1V(Note 1)
Low Dropout 1A CMOS Regulator
Typ
Max 5.5
Units V A
1 0.980 0.990 2
V %
VOUT x100% V IN VOUT
Load Regulation
VOUT x100% VOUT IOUT
Output Current Limit Short Circuit Current Power Supply Rejection Ratio Enable High (enabled) Enable Low (shutdown) Enable Pin Current (enabled) Shutdown Current
REGLOAD
VIN=VOUT+1V 10mA< ILOAD <1A
-0.001 0.0005 0.001 %/mA
ILIM Isc PSRR VEN(HI) VEN(LO) IEN ISHDN
VOUT=0.9 x VOUT(nom) VIN =VOUT(nom)+1V, Vo<0.6V COUT=4.7uF, F=1KHz, IOUT=100mA VIN(min) O VIN O 5.5V VIN(min) O VIN O 5.5V VEN = VIN VEN =0V, VIN(min)O VIN O 5.5V
1.3
1.5 0.6 60
A A dB VIN 0.4 V V
A A
1.4 0 0.1 5
1 10
Rev.A.02
7
AME
AME8827
n Electrical Specifications (Contd.)
VIN = VOUT(nom) + 0.5V, ( for VOUT < 2V, VIN=2.5V ), VEN =VIN, IOUT =1mA, and COUT = 4.7uF, CIN=1uF unless otherwise noted. Typical values are at TA = 25oC.
Parameter Symbol Test Condition Shutdown, temperature increasing Restore, temperature decreasing Min Typ 150
o
Low Dropout 1A CMOS Regulator
Max
Units
Thermal Shutdown Temperature
TSHDN
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 to output differential.
8
Rev.A.02
AME
AME8827
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 1F for input capacitor and 4.7For 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 4.7F. 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
Low Dropout 1A CMOS Regulator
Rev.A.02
9
AME
AME8827
VOUT vs. Temperature
1.24 1.23
Low Dropout 1A CMOS Regulator
Quiesent Current vs Temprature
130 120
V OUT = 3.3V
1.22
Quiesent Current (V)
1.22
110 100 90 80 70 60 50 40
V OUT (V)
1.21 1.20 1.19 1.18 1.18 1.17 1.16 -50 -25 0 +25 +50
o
IOUT=1A IOUT=1mA
V OUT = 1.2V IOUT = 1mA
+75 +100 +125
30 -50
-25
0
+25
+50
+75
+100
+125
Temperature ( C)
Temperature (oC)
Current Limit vs Input Voltage
3500 3300 3100 2900 2700 2500 2300 2100 1900 1700 1500 2.5 4.5
Current Limit vs Input Voltage
3500
V OUT = 1.2V
3300 3100
VOUT = 3.3V
Current Limit (mA)
Current Limit (mA)
2900 2700 2500 2300 2100 1900 1700 1500 4.3 4.7 5.1 5.5
3.5
5.5
Input Voltage (V)
Input Voltage (V)
Dropout Voltage vs Load Current
500
100
Power Supply Rejection Ratio
Dropout Voltage (mV)
VOUT = 3.3V IOUT = 0mA~1000mA
400
90 80
O
VOUT = 3.3V IOUT=10mA
PSRR (dB)
TA=125 C
300
70 60 50 40 30
200
IOUT=100mA
TA=25OC
100
20 10 0 1K 10K 100K 1M
TA=-40 C
0 0 200 400 600 800 1000
O
Load Current (mA)
10
Frequency (Hz)
Rev.A.02
AME
AME8827
Line Transient Response
Low Dropout 1A CMOS Regulator
Load Transient Response
V OUT = 1.2V IOUT = 10mA~1000mA
VOUT (10mV/DIV)
IOUT (1A/DIV)
V OUT (50mV/DIV)
V IN(1V/DIV)
V IN = 2.5V~3.5V VOUT = 1.2V IOUT = 10mA
TIME (100Sec/DIV)
TIME (100Sec/DIV)
Short Circuit Current
V OUT (2V/DIV)
IOUT (500mA/DIV)
VOUT = 3.3V CIN = 10F COUT = 4.7F
TIME (100Sec/DIV)
Rev.A.02
11
AME
AME8827
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
Low Dropout 1A CMOS Regulator
n Tape & Reel Dimensions
SOT-223
P
W AME PIN 1 AME
Carrier Tape, Number of Components Per Reel and Reel Size
Package SOT-223 Carrier Width (W) 12.00.1 mm Pitch (P) 4.00.1 mm Part Per Full Reel 2500pcs Reel Size 3301 mm
12
Rev.A.02
AME
AME8827
n Tape & Reel Dimensions
TO-252-2
P
Low Dropout 1A CMOS Regulator
PIN 1
W
Carrier Tape, Number of Components Per Reel and Reel Size
Package TO-252
Carrier Width (W) 16.00.1 mm
Pitch (P) 4.00.1 mm
Rev.A.02
AME
AME
Part Per Full Reel 2500pcs
Reel Size 3301 mm
13
AME
AME8827
n Package Dimension
SOT-223
Top View D B1 Side View
Low Dropout 1A CMOS Regulator
SYMBOLS
c C 13 o (4X)
MILLIMETERS MIN MAX
0.10 0.84 3.15 0.38 6.71 3.71
INCHES MIN
0.0004 0.0236 0.1140 0.0094 0.2441 0.1299
MAX
0.0039 0.0330 0.1240 0.0150 0.2640 0.1460
A1 B B1 C D E e
0.01 0.60 2.90 0.24 6.20 3.30
H
E
PIN 1
2.30 BSC 1.40 6.70 0
o
0.0906 BSC 0.0551 0.2638 0
o
e Front View F A1 B 13 o (4X)
F H
1.80 7.30 10
o
0.0709 0.2874 10
o
14
Rev.A.02
AME
AME8827
n Package Dimension
TO-252-2
Low Dropout 1A CMOS Regulator
TOP VIEW
E K B A L
SIDE VIEW
Rev.A.02
D1
F E1 G C H J
MILLIMETERS SYMBOLS MIN A B C D E F G H J K L D1 E1
0.50 5.20 1.35 3.81 0.43 1.60 0.51 0.43 6.35 5.36 2.20
PIN1
D
INCHES MIN
0.0169 0.0630 0.0200 0.0169 0.2500 0.2110 0.0866 0.0197 0.2047 0.0531 0.1500
MAX
0.58 1.95 1.78 0.60 6.80 7.20 3.00 * 2.30 0.97 5.50 1.65 5.10
MAX
0.0230 0.0768 0.0701 0.0236 0.2677 0.2835 0.1181 *0.0906 0.0380 0.2165 0.0650 0.2008
3.80 REF
0.1496 REF
*: 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.
15
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. (c) AME, Inc. , June 2009 Document: 1271-DS8827-A.02
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

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