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| AME, Inc. AME8863 600mA CMOS LDO n General Description The AME8863 family of positive, linear regulators feature low quiescent current (30A typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-23-6 and DFN packages are attractive for "Pocket" and "Hand Held" applications. These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions. An additional feature is a "Power Good" detector, which pulls low when the output is out of regulation. The AME8863 is stable with an output capacitance of 2.2F or greater. n Functional Block Diagram IN OUT Overcurrent Shutdown Thermal Shutdown EN Vrefx110% PG R1 AMP R2 Vref x90% Vref n Features l Very Low Dropout Voltage l Guaranteed 600mA Output l Accurate to within 1.5% l 30A Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back l Power Good Output Function l Power-Saving Shutdown Mode l Space-Saving SOT-23-6, DFN l Factory Pre-set Output Voltages l Low Temperature Coefficient C1 1F INPUT IN GND n Typical Application OUT OUTPUT AME8863 PG GND EN C2 2.2F n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets l Electronic Scales 1 AME, Inc. AME8863 600mA CMOS LDO n Pin Configuration SOT-26 Top View 6 5 4 DFN6 Top View AME8863AEEY 1. VIN 2. GND 1 2 3 6 AME8863AEVY 1. EN 2. GND 5 4 AME8863 3. EN 4. PG 5. GND AME 8863 3. VIN 4. VOUT 5. GND 6. PG 1 2 3 6. VOUT n Ordering Information AME8863 x x x x x x - x Special Feature 2 Special Feature 1 Voltage Number of Pins Package Type Operating Temperature Range Pin Configuration Pin Configuration Operating Temperature Range Package Type Number of Pins Y: 6 V: 5 Special Feature2 (For DFN package only) Voltage Special Feature1 A: 1. VIN (SOT-26) 2. GND 3. EN 4. PG 5. GND 6. VOUT A: 1. EN (DFN6) 2. GND 3. VIN 4. VOUT 5. GND 6. PG 2 E: -40OC to 85OC E: SOT-2X V: DFN 150: V=1.5V 180: V=1.8V 300: V=3.0V 330: V=3.3V L: Low Profile Y: Lead Free 2: 3: 2x2(mm) (LxW) 3x3(mm) (LxW) & Low Profile Z: Lead Free AME, Inc. AME8863 600mA CMOS LDO n Ordering Information (contd.) Part Number AME8863AEEY150 AME8863AEEY150L AME8863AEEY150Z AME8863AEEY150Y AME8863AEEY180 AME8863AEEY180L AME8863AEEY180Z AME8863AEEY180Y AME8863AEEY300 AME8863AEEY300L AME8863AEEY300Z AME8863AEEY300Y AME8863AEEY330 AME8863AEEY330L AME8863AEEY330Z AME8863AEEY330Y AME8863AEVY330-2 AME8863AEVY330Z-2 Marking AZYww AZYww AZYww AZYww AZRww AZRww AZRww AZRww AZZww AZZww AZZww AZZww AZJww AZJww AZJww AZJww AZTww AZTww Output Voltage 1.5V 1.5V 1.5V 1.5V 1.8V 1.8V 1.8V 1.8V 3.0V 3.0V 3.0V 3.0V 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V Package Operating Temp. Range SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26 SOT-26 TSOT-26 DFN6 DFN6 - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 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: ww represents the date code * A line on top of the first letter represents lead free plating such as AZY Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability. 3 AME, Inc. AME8863 600mA CMOS LDO n Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage ESD Classification Maximum 7 PD / (VIN - VO) GND - 0.3 to VIN + 0.3 B Unit V A V Caution: Stress above the listed absolute rating may cause permanent damage to the device n Recommended Operating Conditions Parameter Ambient Temperature Range Junction Temperature Rating - 40 to + 85 - 40 to + 125 Unit o C C o n Thermal Information Parameter Thermal Resistance (ja) Internal Power Dissipation (P D ) (T = 100oC) Maximum Junction Temperature Maximum Lead Temperature (10 Sec) Maximum 260 Unit o C/W 380 150 300 mW o C C o 4 AME, Inc. AME8863 600mA CMOS LDO n Electrical Specifications TA = 25OC unless otherwise noted Parameter Input Voltage Output Voltage Accuracy Dropout Voltage Output Current Current Limit Short Circuit Current Quiescent Current Ground Pin Current Line Regulation Load Regulation Over Temerature Shutdown Over Temerature Hysterisis VO Temperature Coefficient Power Supply Rejection Symbol VIN VO VDROPOUT IO ILIM ISC IQ IGND REGLINE REGLOAD OTS OTH TC IO=100mA PSRR CO=2.2F ceramic f=10Hz to 100kHz IO=10mA f=1kHz f=10kHz f=100kHz Co=2.2F 2.0 0 IO=1mA VIN =VO+1 to VO+2 IO=600mA VO=VO(NOM) -2.0% IO=1mA 1.4V<=VO(NOM)<=2.0 2.0V Units V % mV VO>1.2V VO>1.2V VO<0.8V IO=0mA IO=1mA to 600mA 1.4V < VO <= 2.0V 2.0V < VO < 4.0V IO=1mA to 600mA C C ppm/oC Output Voltage Noise EN Input Threshold EN Input Bias Current Shutdown Supply Current PG Leakage Current PG Voltage Rating PG Voltage Low eN VEH VEL IEH IEL ISD ILC VPG VOL VIN =2.7V to 6V VIN =2.7V to 6V VEN =VIN , VIN =2.7V to 6V VEN =0V, VIN =2.7V to 6V VIN =5V, VO=0V, VEN 5 AME, Inc. AME8863 600mA CMOS LDO n Detailed Description The AME8863 family of CMOS regulators contain a PMOS pass transistor, voltage reference, error amplifier, over-current protection, thermal shutdown, and power good function. 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 600mA. During thermal shutdown, the output voltage remains low. Normal operation is restored when the junction temperature drops below 120oC. The AME8863 switches from voltage mode to current mode when the load exceeds the rated output current. This prevents over-stress. The AME8863 also incorporates current foldback to reduce power dissipation when the output is short circuited. This feature becomes active when the output drops below 0.8volts, and reduces the current flow by 65%. Full current is restored when the voltage exceeds 0.8 volts. n Enable The Enable pin normally floats high. When actively, pulled low, the PMOS pass transistor shuts off, and all internal circuits are powered down. In this state, the quiescent current is less than 1A. This pin behaves much like an electronic switch. n Power Good The AME8863 includes the Power Good feature. When the output is not within +0% of the specified voltage, it pulls low. This can occur under the following conditions: 1) Input Voltage too low. 2) During Over-Temperature. 3) During Over-Current. 4) If output is pulled up. (Note: PG pin is an open-drain output.) n External Capacitors The AME8863 is stable with an output capacitor to ground of 2.2F 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 0.1F ceramic capacitor with a 10F 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 0.1F 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. 6 AME, Inc. AME8863 Ground Current vs. Input Voltage 45 600mA CMOS LDO Load Step (1mA-600mA) Vo(10mV/DIV) 40 Ground Current ( A) 35 30 25 20 15 10 5 0 0 1 2 3 4 85 OC Output CL =2.2 =2.2 25 C IL (200mA/DIV) O I Load 0 TIME (20mS/DIV) 5 6 7 8 Input Voltage (V) Drop Out Voltage vs. Output Voltage 1200 0 -10 Power Supply Rejection Ratio Drop Out Voltage (mV) 1000 ILOAD=600mA PSRR (dB) -20 -30 -40 -50 -60 800 CL=2.2F Tantalum C BYP=0 100mA 600 400 100mA 10mA 200 -70 -80 100 A 10 1K 100 A 100K 1mA 10M 0 1 2 3 4 5 6 Output Voltage (V) Frequency (Hz) Safe Operating Area -20 600 Power Supply Rejection Ratio 100mA -30 Output Current (mA) C L=2.2F Tantalum CBYP=1000pF PSRR (dB) -40 1mA -50 100 100mA -60 -70 -80 10 10mA 100A 1K 100A 100K 10M 10 0.1 1.0 8.0 Input-Output Voltage Differential (V) Frequency (Hz) 7 AME, Inc. AME8863 Overtemperature Shutdown I OUT (200mA/DIV) V OUT (1V/DIV) 600mA CMOS LDO Current Limit Response 0 IOUT (200mA/DIV) R LOAD=6.6 VOUT (1V/DIV) C LOAD =2.2F C IN=1.0F RLOAD=3.3 VOUTNOM =3.3V 0 TIME (0.5Sec/DIV) TIME (2mS/DIV) Short Circuit Response IOUT (200mV/DIV) C LOAD=2.2F C IN=1F R LOAD <100m Chip Enable Transient Response Enable (2V/DIV) C L=2F R L=10 0 VOUT (1V/DIV) Output (1V/DIV) 0 TIME (1mS/DIV) TIME (2mS/DIV) Line Transient Response 40 Quiescent Current vs. Temp. V IN (1V/DIV) 38 Quiescent Current (uA) VOUT (10mV/DIV) C LOAD=2.2F ILOAD =1mA VOUTDC=3.3V VINDC=4.5V 36 34 32 30 28 26 -20 0 20 40 60 80 TIME (200mS/DIV) Temperature ( o C) 8 AME, Inc. AME8863 EN pin vs. Temp. -0.20 0.65 0.60 0.55 0.50 0.45 0.40 0.35 0.30 0 20 40 60 80 -20 0 20 40 60 80 600mA CMOS LDO Shut Down Current vs. Temp. EN pin LO bias current (uA) -0.30 -0.35 -0.40 -0.45 -0.50 -20 Temperature (oC) Shut Down Current (uA) -0.25 Temperature (oC) Dropout Voltage vs. Temp. 500 Load Regulation vs. Temp. 0.55 Dropout Voltage @ 600mA (mV) 480 460 440 420 400 380 360 -20 Load Regulation (%) 0 20 40 60 80 0.50 0.45 0.40 0.35 0.30 -20 0 20 40 60 80 Temperature (oC) Temperature (o C) Noise Measurement Enable (2V/DIV) Chip Enable Transient Response C L=2F R L=10 Vo (1mV DIV) 0 Output (1V/DIV) C L=2.2F No Filter 0 TIME (1mS/DIV) TIME (20ms/DIV) 9 AME, Inc. AME8863 600mA CMOS LDO n Package Dimension SOT-26(Wide) Top View D e Side View SYMBOLS L MILLIMETERS MIN MAX INCHES MIN MAX A A1 H E 1.20REF 0.00 0.30 2.70 1.40 0.15 0.55 3.10 2.00 0.0472REF 0.000 0.012 0.106 0.055 0.006 0.022 0.122 0.079 b D c1 S1 E e H L 1 S1 1.90REF 2.60 3.00 0.0748REF 0.1024 0.1181 0.37REF 0 o 0.0146REF o Front View A 10 0 o 10 o 0.95REF 0.0374REF b SOT-26 Top View D e Side View A1 SYMBOLS L MILLIMETERS MIN MAX INCHES MIN MAX A A1 b D E 1.20REF 0.00 0.30 2.70 1.40 0.15 0.55 3.10 1.80 0.0472REF 0.0000 0.0118 0.1063 0.0551 0.0059 0.0217 0.1220 0.0709 H E c1 S1 e H L 1 S1 1.90 BSC 2.60 3.00 0.0748 BSC 0.10236 0.11811 0.0146REF o 0.37REF 0 o Front View A 10 0 o 10 o 0.95REF 0.0374REF b 10 A1 AME, Inc. AME8863 600mA CMOS LDO n Package Dimension TSOT-26 Top View D e Side View SYMBOLS L MILLIMETERS MIN MAX 1.25 0.50 0.25 3.10 1.80 INCHES MIN 0.0354 0.0118 0.0035 0.1063 0.0551 MAX 0.0492 0.0197 0.0098 0.1220 0.0709 A+A1 b H E 0.90 0.30 0.09 2.70 1.40 c D c1 S1 E e H L 1 1.90 BSC 2.40 3.00 0.07480 BSC 0.09449 0.11811 0.0138BSC 0o 10o 0.35BSC 0o 10o Front View A S1 0.95BSC 0.0374BSC b DFN6 (2x2) Top View E Bottom View e b L A1 SYMBOLS A A1 MILLIMETERS MIN 0.80 0.00 0.05 INCHES MIN MAX MAX 0.031 0.000 0.002 D D1 E1 A2 A3 D E D1 E1 0.2 TYP 0.70 1.90 1.90 0.80 2.10 2.10 0.008 TYP 0.028 0.075 0.075 0.031 0.083 0.083 0.90 TYP 1.60 TYP 0.23 TYP 0.50 TYP 0.40 TYP 0.035 TYP 0.063 TYP 0.009 TYP 0.020 TYP 0.016 TYP Side View b A2 A A3 A1 b e L 11 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. , November 2004 Document: 2006-DS8863-B 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 U.S.A.(Subsidiary) Analog Microelectronics, Inc. 3100 De La Cruz Blvd., Suite 201 Santa Clara, CA. 95054-2046 Tel : (408) 988-2388 Fax: (408) 988-2489 |
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