AME AME8827 n General Description Low Dropout 1A CMOS Regulator n Applications l Motherboard, Desktop, and Computer 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. Peripherals l LCD monitor l Handheld Device l Data-communication The AME8827 is stable with an output capacitance of 4.7µF or larger. n Typical Application (Fixed Version) n Features l Low Dropout Voltage:340mV @ 1A AME8827 VIN l Guaranteed 1A Drive current VOUT OUT IN GND l Over-Temperature Shutdown C1 1µF l Current Limiting protection C2 4.7µF 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 n Function Block Diagram (Fixed Version) Standards IN OUT Overcurrent Shutdown Thermal Shutdown R1 Bandgap Reference R2 Rev.A.02 GND 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 AME8827 3. OUT 1 2 2. GND (TAB) 3. OUT 3 Die Attach: 1 2 3 Conductive Epoxy Die Attach: Conductive Epoxy n Pin Description Pin Name IN 2 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. Rev.A.02 AME AME8827 Low Dropout 1A CMOS Regulator n Ordering Information AME8827 - x x x xxx Output Voltage Number of Pins Package Type Pin Configuration Pin Configuration A (SOT-223) A (TO-252-2) Rev.A.02 1. IN 2. GND 3. OUT 1. IN 2. GND 3. OUT Package Type G: SOT-223 C: TO-252 Number of Pins T: 3 S: 2 Output Voltage 120: 150: 180: 250: 300: 330: 1.2V 1.5V 1.8V 2.5V 3.0V 3.3V 3 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-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 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 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 Symbol Rating Ambient Temperature Range TA -40 to +85 Junction Temperature Range TJ -40 to +125 Storage Temperature Range TSTG -65 to +150 Rev.A.02 Unit o C 5 AME AME8827 Low Dropout 1A CMOS Regulator n Thermal Information Parameter Package Die Attach Thermal Resistance* (Junction to Case) Thermal Resistance (Junction to Ambient) Symbol Maximum θJC 25 o θJA 120 Internal Power Dissipation PD 900 Thermal Resistance* (Junction to Case) θJC 5 Thermal Resistance (Junction to Ambient) Unit SOT-223 Conductive Epoxy mW o TO-252-2 Internal Power Dissipation Solder Iron (10 Sec)** Conductive Epoxy θJA 90 PD 1200 350 C/W C/W mW o C * Measure θJC on backside center of tab. ** MIL-STD-202G 210F 6 Rev.A.02 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 = 4.7uF, CIN=1uF unless otherwise noted. Typical values are at TA = 25oC. Parameter Symbol Test Condition Min Input Voltage VIN ADJ Input Bias Current IADJ ADJ Reference Voltage VREF 0.970 VOUT,ACC -2 Output Accuracy Dropout Voltage Quiescent Current VDROP IQ (Note 1) VIN =5V, VADJ=0.980 ∆ VOUT ×100% ∆V IN VOUT Units 5.5 V µA 1 0.980 0.990 V 2 % (Note2) IO=1A, 2.0V<V OUT(nom)≦2.5V 430 500 IO=1A, 2.6V≦VOUT(nom)≦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 2.5V<VIN <3.5V REGLINE Max IO=1A, VOUT(nom)≦2.0V for VOUT≦2.0 Line Regulation Typ 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 REGLOAD VIN=VOUT+1V 10mA< ILOAD <1A Output Current Limit ILIM VOUT=0.9 x VOUT(nom) Short Circuit Current Isc VIN =VOUT(nom)+1V, Vo<0.6V -0.001 0.0005 0.001 %/mA 1.3 COUT=4.7uF, 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 IEN VEN = VIN 0.1 1 µA ISHDN VEN =0V, VIN(min)≦VIN ≦5.5V 5 10 µA Enable Pin Current (enabled) Shutdown Current Rev.A.02 IOUT=100mA 7 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 = 4.7uF, CIN=1uF 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 to output differential. 8 Rev.A.02 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 Rev.A.02 9 AME AME8827 Low Dropout 1A CMOS Regulator VOUT vs. Temperature Quiesent Current vs Temprature 130 1.23 120 1.22 110 Quiesent Current (V) 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 -25 0 +25 +50 +75 +100 100 90 IOUT=1A 80 IOUT=1mA 70 60 50 40 30 -50 1.16 -50 V OUT = 3.3V +125 -25 0 Temperature ( C) Current Limit vs Input Voltage 3300 +100 +125 VOUT = 3.3V 3100 Current Limit (mA) 3100 Current Limit (mA) +75 3500 V OUT = 1.2V 3300 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 VOUT = 3.3V IOUT = 0mA~1000mA 90 VOUT = 3.3V 80 400 70 O TA=125 C PSRR (dB) Dropout Voltage (mV) +50 Current Limit vs Input Voltage 3500 300 200 IOUT=10mA 60 50 40 IOUT=100mA 30 TA=25OC 20 100 O TA=-40 C 10 0 0 0 200 400 600 Load Current (mA) 10 +25 Temperature (oC) o 800 1000 1K 10K 100K 1M Frequency (Hz) Rev.A.02 AME AME8827 Low Dropout 1A CMOS Regulator 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) V OUT (2V/DIV) Short Circuit Current VOUT = 3.3V CIN = 10µF COUT = 4.7µF TIME (100µSec/DIV) Rev.A.02 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 12 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 Rev.A.02 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 Rev.A.02 Package Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size TO-252 16.0±0.1 mm 4.0±0.1 mm 2500pcs 330±1 mm 13 AME AME8827 Low Dropout 1A CMOS Regulator n Package Dimension SOT-223 Top View Side View SYMBOLS D B1 θ 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 14 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.02 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.02 15 www.ame.com.tw E-Mail: [email protected] 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. , 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