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| AME, Inc. AME8824 300mA CMOS LDO n General Description The AME8824 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-26 package 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. The SOT-26 version also features a "Power Good" detector, which pulls low when the output is out of regulation. The AME8824 is stable with an output capacitance of 2.2F or greater. n Functional Block Diagram IN OUT Overcurrent Shutdown Thermal Shutdown EN Vref x110% PG ADJ AMP n Features l Very Low Dropout Voltage l Guaranteed 300mA Output l Typical accuracy within 2% l 30A Quiescent Current l Over-Temperature Shutdown l Current Limiting l Short Circuit Current Fold-back l Power Good Detector (6 pin version only) l Power-Saving Shutdown Mode l Space-Saving SOT-26 l Adjustable Output Voltages l Low Temperature Coefficient IN Vref x90% Vref =1.2V GND n Typical Application EN IN PG OUT OUT C2 R1 100p C3 2.2F R2 AME8824 GND ADJ C1 5V 1F n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets l Electronic Scales V OUT = 1.2 (R1 +R2)/R2 C2 is unnecessary when R1 or R2 < 20K PG pin is only available in the SOT-26 package option 1 AME, Inc. AME8824 300mA CMOS LDO n Advanced Application VIN =3.3V VO =1.2V 1 100K 100 VIN VO 100 Ohm AME 8824 ADJ 100 PG GND EN 10K 2 AME, Inc. AME8824 300mA CMOS LDO n Pin Configuration SOT-26 Top View 6 5 4 AME8824 1. VIN 2. GND AME8824 3. EN 4. PG 5. ADJ 1 2 3 6. VOUT n Ordering Information AME8824 x x x x x Special Feature Number of Pins Package Type Operating Temperature Range Product Grade or Option Product Grade or Option A: ADJ Operating Temperature Range Package Type Number of Pins Special Feature E: -40OC to 85OC E: SOT-2X Y: 6 L: Low Profile Y: Lead Free & Low Profile Z: Lead Free 3 AME, Inc. AME8824 300mA CMOS LDO n Ordering Information (contd.) Part Number AME8824AEEY AME8824AEEYL AME8824AEEYY AME8824AEEYZ Marking AUEww AUEww AUEww AUEww Output Voltage ADJ ADJ ADJ ADJ Package SOT-26 TSOT-26 TSOT-26 SOT-26 Operating Temp. Range - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC ww: represents the date code * A line on top of the first character represents lead free plating Please consult AME sales office or authorized Rep./Distributor for the availability of output voltage and package type. n Absolute Maximum Ratings Parameter Input Voltage Output Current Input, Output Voltage ESD Classification Maximum 8 PD / (VIN - VO) 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 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) 4 Maximum SOT-26 SOT-26 260 380 150 300 Unit o C/W mW o C C o AME, Inc. AME8824 300mA CMOS LDO n Electrical Specifications TA = 25OC, VIN=5V unless otherwise noted Parameter Input Voltage Output Voltage 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 PSRR IO=100mA CO=2.2F f=10Hz to 100kHz IO=10mA,CBYP=0F f=1kHz f=10kHz f=100kHz Co=2.2F IO=5mA VIN =VO+1 to VO+2 IO=300mA VO=VONOM -2.0% IO=1mA 1.2V<=VO(NOM)<=2.0V 2.0V o o Units V % mV VO>1.2V VO>1.2V VO<0.8V IO=0mA IO=1mA to 300mA IO=1mA to 300mA C C ppm/oC Output Voltage Noise ADJ Input Bias Current ADJ Reference Voltage EN Input Threshold EN Input Bias Current Shutdown Supply Current Shutdown Output Voltage Output Under Voltage Output Over Voltage PG Leakage Current PG Voltage Rating PG Voltage Low eN IADJ VREF VEH VEL IEH IEL ISD VO, SD VUV VOV ILC VPG VOL Note1:VIN(min) =VOUT+VDROPOUT 5 AME, Inc. AME8824 Ground Current vs. Input Voltage 45 40 300mA CMOS LDO Load Step (1mA-300mA) Output VO (5mV/DIV) C L =2.2F C IN =2.2F Ground Current ( A) 35 30 25 20 15 10 5 0 0 1 2 3 4 85 C O 25 C O IL(200mA/DIV) I Load 5 6 7 8 0 TIME(20mS/DIV) Input Voltage (V) Power Supply Rejection Ratio 0 -10 -20 Chip Enable Transient Response Enable (2V/DIV) CL=2.2F Tantalum Tantalum C BYP=0 100mA C L=2F R L=10 PSRR (dB) -30 -40 -50 -60 -70 -80 10 1K 100K 10M 0 100mA 10mA 100 A 100 A 1mA Output (1V/DIV) 0 TIME (1mS/DIV) Frequency (Hz) Drop Out Voltage vs. Output Voltage 300 250 Drop Out Voltage vs. Load Current Top to bottom bottom VOUT=2.5V VOUT =2.8V VOUT =3.0V VOUT=3.3V VOUT=3.5V VOUT =3.8V 250 Drop Out Voltage (mV) 200 I LOAD =300mA I LOAD =200mA I LOAD =100mA Dropout Voltage (mV) 200 150 150 100 100 50 0 2.5 2.75 3 3.25 3.5 3.75 4 50 0 0 50 100 150 200 250 300 Output Voltage (V) Load Current (mA) 6 AME, Inc. AME8824 Ground Current vs. Input Voltage 45 40 300mA CMOS LDO Load Step (1mA-300mA) C L =2.2F C IN =2.2F Ground Current ( A) 35 30 25 20 15 10 5 0 0 1 2 3 4 85 C 25 C O IL(200mA/DIV) VO (5mV/DIV) O Output I Load 5 6 7 8 0 TIME(20mS/DIV) Input Voltage (V) Power Supply Rejection Ratio 0 -10 -20 Chip Enable Transient Response Enable (2V/DIV) CL=2.2F Tantalum Tantalum C BYP=0 100mA C L=2F R L=10 PSRR (dB) -30 -40 -50 -60 -70 -80 10 1K 100K 10M 0 100mA 10mA 100 A 100 A 1mA Output (1V/DIV) 0 TIME (1mS/DIV) Frequency (Hz) Drop Out Voltage vs. Output Voltage 300 250 Drop Out Voltage vs. Load Current Top to bottom bottom VOUT=2.5V VOUT =2.8V VOUT =3.0V VOUT=3.3V VOUT=3.5V VOUT =3.8V 250 Drop Out Voltage (mV) 200 I LOAD =300mA I LOAD =200mA I LOAD =100mA Dropout Voltage (mV) 4 200 150 150 100 100 50 0 2.5 2.75 3 3.25 3.5 3.75 50 0 0 50 100 150 200 250 300 Output Voltage (V) Load Current (mA) 7 AME, Inc. AME8824 Stability vs. ESR vs. ILoad 10000 300mA CMOS LDO Stability vs. ESR vs. ILoad 10000 Unstable Region 1000 Unstable Region 1000 100 CL=1F 100 CL=2F Stable Region ESR ( ) ESR ( ) 10 Stable Region 10 1 1 0.1 0.1 Untested Region Untested Region 0.01 0 50 100 150 200 0.01 0 50 100 150 200 ILOAD (mA) ILOAD (mA) Stability vs. ESR vs. ILoad 10000 Stability vs. ESR vs. ILoad 10000 Unstable Region 1000 Unstable Region 1000 100 C L=3F C L=10F 100 ESR ( ) ESR ( ) 10 1 0.1 10 Stable Region Stable Region 1 0.1 Untested Region 0.01 0.001 0 50 100 150 200 Untested Region 0.01 0 50 100 150 200 ILOAD (mA) ILOAD (mA) 8 AME, Inc. AME8824 300mA CMOS LDO n Package Dimension SOT-26 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 1.80 0.0472REF 0.0000 0.0118 0.1063 0.0551 0.0059 0.0217 0.1220 0.0709 b D c1 S1 E 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 TSOT-26 Top View D e Side View A1 SYMBOLS L MILLIMETERS MIN MAX 1.25 0.50 3.10 1.80 INCHES MIN 0.0354 0.0118 0.1063 0.0551 MAX 0.0492 0.0197 0.1220 0.0709 A+A1 b H E 0.90 0.30 2.70 1.40 D E c1 S1 e H L 1 S1 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 0.95BSC 0.0374BSC b A1 9 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. , December 2004 Document: 2006-DS8824-C 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 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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