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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, 2.0V 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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