AME 750mA CMOS LDO AME8808 n General Description n Functional Block Diagram The AME8808 family of positive, linear regulators feature low quiescent current (30µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-223 and TO-252-2 packages are attractive for "Pocket" and "Hand Held" applications. IN OUT Overcurrent Shutdown These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" operating conditions. R1 Thermal Shutdown AMP The AME8808 is stable with an output capacitance of 2.2µF or greater. R2 Vref=1.215V GND n Features l Very Low Dropout Voltage l Guaranteed 750mA Output l Accurate to within 1.5% l 30µA Quiescent Current n Typical Application l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back IN OUT IN l Space-Saving SOT-223 and TO-252-2 Packages AME8808 OUT GND l Factory Pre-set Output Voltages l Low Temperature Coefficient l All AME's Lead Free Products Meet RoHS Standards C1 C2 1µF 2.2µF 5V n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets Rev.G.02 1 AME 750mA CMOS LDO AME8808 Pin Configuration SOT-223 Top View AME8808 1 2 3 TO-252-2 Top View AME8808 1. GND 2. OUT (TAB) 3. IN AME8808 * Die Attach: Non-Conductive Epoxy 1 2 3 AME8808 1. GND 2. OUT (TAB) 3. IN * Die Attach: Non-Conductive Epoxy Pin Description 2 Pin Number Pin Name Pin Description 1 GND Ground connection pin. 2 OUT LDO voltage regulator output pin. It should be decoupled with a 1µF or greater value low ESR ceramic capacitor. 3 IN Input voltage pin. It should be decoupled with 1µF or greater capacitor. Rev.G.02 AME 750mA CMOS LDO AME8808 n Ordering Information AME8808 x x x x x Special Feature Number of Pins Package Type Operating Ambient Temperature Range Product Grade or Option Product Grade or Option A: B: C: D: E: F: G: H: I: J: K: L: M: N: O: P: Q: R: S: U: V: W: Y: Z: Rev.G.02 3.3V 3.0V 2.8V 2.5V 3.8V 3.6V 3.5V 2.7V 3.4V 2.85V 3.7V 1.5V 1.8V 2.9V 3.1V 4.1V 4.75V 2.65V 5.0V 3.2V 3.15V 2.3V 1.9V 1.7V 1: 2: 3: 4: 1.3V 2.0V 4.2V 4.0V Operating Ambient Temperature Range E: -40OC to +85OC Package Type C: TO-252 G: SOT-223 Number of Pins S: 2 T: 3 Special Feature Z: Lead Free 3 AME 750mA CMOS LDO AME8808 n Ordering Information Part Number Marking* Output Voltage Package Operating Ambient Temperature Range AME8808AEGT AETyww 3.3V SOT-223 - 40oC to +85oC AME8808AEGTZ AETyww 3.3V SOT-223 - 40oC to +85oC AME8808BEGTZ AEUyww 3.0V SOT-223 - 40oC to +85oC AME8808CEGTZ AEVyww 2.8V SOT-223 - 40oC to +85oC AME8808DEGTZ AEWyww 2.5V SOT-223 - 40oC to +85oC AME8808EEGTZ AEXyww 3.8V SOT-223 - 40oC to +85oC AME8808FEGTZ AEYyww 3.6V SOT-223 - 40oC to +85oC AME8808GEGTZ AEZyww 3.5V SOT-223 - 40oC to +85oC AME8808HEGTZ AFAyww 2.7V SOT-223 - 40oC to +85oC AME8808IEGTZ AFByww 3.4V SOT-223 - 40oC to +85oC AME8808JEGTZ AGUyww 2.85V SOT-223 - 40oC to +85oC AME8808KEGTZ AHWyww 3.7V SOT-223 - 40oC to +85oC AME8808LEGTZ AJGyww 1.5V SOT-223 - 40oC to +85oC AME8808MEGTZ AJHyww 1.8V SOT-223 - 40oC to +85oC AME8808NEGTZ AKUyww 2.9V SOT-223 - 40oC to +85oC AME8808OEGTZ AKVyww 3.1V SOT-223 - 40oC to +85oC AME8808AECSZ AME8808 AECS yyww 3.3V TO-252-2 - 40oC to +85oC AME8808BECSZ AME8808 BECS yyww 3.0V TO-252-2 - 40oC to +85oC AME8808CECSZ AME8808 CECS yyww 2.8V TO-252-2 - 40oC to +85oC Note: yww & yyww represents the date code * A line on top of the first letter represents lead free plating such as AET Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 4 Rev.G.02 AME 750mA CMOS LDO AME8808 n Ordering Information (contd.) Part Number Marking* Output Voltage Package Operating Ambient Temperature Range AME8808DECSZ AME8808 DECS yyww 2.5V TO-252-2 - 40oC to +85oC AME8808EECSZ AME8808 EECS yyww 3.8V TO-252-2 - 40oC to +85oC AME8808FECSZ AME8808 FECS yyww 3.6V TO-252-2 - 40oC to +85oC AME8808GECSZ AME8808 GECS yyww 3.5V TO-252-2 - 40oC to +85oC AME8808HECSZ AME8808 HECS yyww 2.7V TO-252-2 - 40oC to +85oC AME8808IECSZ AME8808 IECS yyww 3.4V TO-252-2 - 40oC to +85oC AME8808JECSZ AME8808 JECS yyww 2.85V TO-252-2 - 40oC to +85oC AME8808KECSZ AME8808 KECS yyww 3.7V TO-252-2 - 40oC to +85oC AME8808LECSZ AME8808 LECS yyww 1.5V TO-252-2 - 40oC to +85oC AME8808MECSZ AME8808 MECS yyww 1.8V TO-252-2 - 40oC to +85oC AME8808NECSZ AME8808 NECS yyww 2.9V TO-252-2 - 40oC to +85oC AME8808OECSZ AME8808 OECS yyww 3.1V TO-252-2 - 40oC to +85oC Rev.G.02 5 AME 750mA CMOS LDO AME8808 n Absolute Maximum Ratings Parameter Maximum Unit -0.3 to +8 V Output Voltage -0.3 to VIN + 0.3 V Output Current PD / (V IN - VOUT) mA Input Voltage B* ESD Classification Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device * HBM B: 2000~3999V n Recommended Operating Conditions Parameter Symbol Rating Unit Ambient Temperature Range TA - 40 to +85 o C Junction Temperature Range TJ - 40 to +125 o C Storage Temperature Range TSTG - 65 to +150 o C n Thermal Information Parameter Thermal Resistance* ( Junction to Case) Package Die Attach Symbol SOT-223 Maximum Unit 31 θJC TO-252-2 30 o Thermal Resistance ( Junction to Ambient) SOT-223 TO-252-2 Non Conductive Epoxy θJA 140 SOT-223 Internal Power Dissipation 800 mW PD TO-252-2 C/W 135 1000 Maximum Junction Temperature 150 o Solder Iron (10 Sec)** 350 o C C * Measure θJC on backside center of tab. ** MIL-STD-202G 210F 6 Rev.G.02 AME 750mA CMOS LDO AME8808 n Electrical Specifications TA = 25OC unless otherwise noted Parameter Test Condition Symbol Input Voltage VIN Output Voltage Accuracy VO IO=1mA Min Typ Max Units Note 1 7 V -1.5 1.5 % 1.3V<=VO(NOM)<=1.4V Dropout Voltage VDROPOUT IO=750mA 1.4V<VO(NOM)<=2.0V VO=VO(NOM) -2.0% 2.0V<VO(NOM)<=2.8V 1900 See 1400 chart 800 2.8V<VO(NOM) Output Current mV 600 IO VO>1.2V 750 Current Limit ILIM VO>1.2V 750 Short Circuit Current ISC VO<0.8V 300 600 mA Quiescent Current IQ IO=0mA 30 50 µA Ground Pin Current IGND IO=1mA to 750mA 35 Line Regulation Load Regulation Over Temperature Shutdown Over Temperature Hysterisis V O Temperature Coefficient Power Supply Rejection Output Voltage Noise REGLINE REGLOAD mA 850 mA µA 1.3V <= VO <= 1.4V -0.2 0.2 IO=1mA 1.4V < VO <= 2.0V -0.15 0.15 V IN =VO+1 to VO+2 2.0V < VO < 4.0V -0.1 0.02 0.1 4.0V <= VO -0.4 0.2 0.4 0.2 1 IO=1mA to 750mA % % 150 o C OTH 30 o C TC 30 OTS PSRR eN IO=100mA CO=2.2mF f=10Hz to 100kHz IO=10mA,CBYP=0mF f=100Hz 60 f=1kHz 50 f=10kHz 20 Co=2.2mF 30 ppm/oC dB mVrms Note1:VIN(min)=VOUT+VDROPOUT Rev.G.02 7 AME AME8808 750mA CMOS LDO n Detailed Description The AME8808 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, and thermal shutdown. The P-channel pass transistor receives data from the error amplifier, over-current shutdown, and thermal protection circuits. During normal operation, the error amplifier compares the output voltage to a precision reference. Over-current and Thermal shutdown circuits become active when the junction temperature exceeds 150oC, or the current exceeds 750mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC. The AME8808 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8808 also incorporates current foldback to reduce power dissipation when the output is short circuited. This feature becomes active when the output drops below 0.8 volts, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8 volts. n External Capacitors The AME8808 is stable with an output capacitor to ground of 2.2µF or greater. Ceramic capacitors have the lowest ESR, and will offer the best AC performance. Conversely, Aluminum Electrolytic capacitors exhibit the highest ESR, resulting in the poorest AC response. Unfortunately, large value ceramic capacitors are comparatively expensive. One option is to parallel a 0.1µF ceramic capacitor with a 10µF Aluminum Electrolytic. The benefit is low ESR, high capacitance, and low overall cost. A second capacitor is recommended between the input and ground to stabilize Vin. The input capacitor should be at least 0.1µF to have a beneficial effect. All capacitors should be placed in close proximity to the pins. A "Quiet" ground termination is desirable. This can be achieved with a "Star" connection. 8 Rev.G.02 AME 750mA CMOS LDO AME8808 Ground Current vs. Input Voltage Load Step (1mA-600mA) Vo(10mV/DIV) 45 85OC 35 30 Output CL=2.2µF CIN=2.2µF 25 O 25 C 20 IL(200mA/DIV) Ground Current (µ A) 40 15 10 5 ILoad 0 0 0 1 2 3 4 5 6 7 8 TIME ( 20mS/DIV) Input Voltage (V) Drop Out Voltage vs. Output Voltage Power Supply Rejection Ratio 0 0.3 ILOAD=600mA 0.2 0.15 0.1 100mA CL =2.2µF Tantalum C BYP =0 -20 PSRR (dB) Drop Out Voltage (V) -10 0.25 -30 -40 -50 10mA 100mA -60 0.05 -70 0 2 2.5 3 3.5 4 4.5 5 5.5 10 Output Voltage (V) SOT-223 VIN(1V/DIV) 75OC rise DPAK-2 With HS capable of twice θjc Input-Output Voltage Differential (V) 1K 100K 10M Line Transient Response VOUT(10mV/DIV) Output Current (mA) 1mA Frequency (Hz) Safe Operating Area Rev.G.02 100 µ A 100 µ A -80 C LOAD =2.2µF I LOAD =1mA V OUTDC =3.3V V INDC =4.5V TIME (200mS/DIV) 9 AME 750mA CMOS LDO AME8808 0 R LOAD=6.6 Ω I CL=2.2µF No Filter OUT (200mA/DIV) Overtemperature Shutdown VOUT (1V/DIV) Vo (1mV DIV) Noise Measurement 0 TIME (20ms/DIV) TIME (0.5Sec/DIV) Short Circuit Response TIME (2mS/DIV) 10 IOUT (200mV/DIV) CLOAD=2.2µF CIN=1.0µF RLOAD=3.3Ω VOUTNOM=3.3V CLOAD=2.2µF CIN=1µF RLOAD<100mΩ VOUT (1V/DIV) IOUT (200mA/DIV) VOUT (1V/DIV) Current Limit Response TIME (2mS/DIV) Rev.G.02 AME 750mA CMOS LDO AME8808 n Tape & Reel Dimension SOT-223 P W AME AME PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size 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 TO-252-2 P PIN 1 W AME AME Carrier Tape, Number of Components Per Reel and Reel Size Rev.G.02 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 11 AME 750mA CMOS LDO AME8808 n Package Dimension TO-252-2(DPAK)-EIAJ SYMBOLS E B K A L F G C 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 5.36 7.20 0.2110 0.2835 G 2.20 3.00 0.0866 0.1181 H - * 2.30 - *0.0906 J - 0.97 - 0.0380 K 5.20 5.50 0.2047 0.2165 L J D H INCHES MIN Side View Top View MILLIMETERS 1.40REF 0.055REF *: 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. SOT-223 Top View Side View SYMBOLS D B1 θ C 13o(4X) H E e Front View 13o(4X) F A1 12 INCHES 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 6.30 6.71 0.2480 0.2640 E 3.30 3.71 0.1299 0.1460 F 1.40 1.80 0.0551 0.0709 2.30 BSC e H B MILLIMETERS θ 6.70 0 o 0.0906 BSC 7.30 10 o 0.2638 0 o 0.2874 10 o Rev.G.02 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. , November 2008 Document: 2006/2095-DS8808-G.02 Corporate Headquarter AME, Inc. 2F, 302 Rui-Guang Road, Nei-Hu District Taipei 114, Taiwan. Tel: 886 2 2627-8687 Fax: 886 2 2659-2989