AME, Inc. AME8824 n General Description 300mA CMOS LDO n Functional Block Diagram The AME8824 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-26 package are attractive for "Pocket" and "Hand Held" applications. IN OUT Overcurrent Shutdown Thermal Shutdown These rugged devices have both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions. EN Vref x110% The SOT-26 version also features a "Power Good" detector, which pulls low when the output is out of regulation. AMP PG ADJ The AME8824 is stable with an output capacitance of 2.2µF or greater. Vref x90% n Features Vref =1.2V GND l Very Low Dropout Voltage l Guaranteed 300mA Output l Typical accuracy within 2% l 30µA Quiescent Current n Typical Application 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 IN PG l Space-Saving SOT-26 l Adjustable Output Voltages l Low Temperature Coefficient C1 5V OUT OUT EN IN AME8824 GND ADJ C2 R1 100p 1µF C3 2.2µF R2 n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones 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 l PC Peripherals l Battery Powered Widgets l Electronic Scales 1 AME, Inc. AME8824 300mA CMOS LDO n Advanced Application VIN =3.3V VO =1.2V 1µ VO 100K 100µ 100 Ohm VIN AME ADJ 100µ 8824 PG EN GND 2 10K AME, Inc. AME8824 300mA CMOS LDO n Pin Configuration SOT-26 Top View 6 5 AME8824 4 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 E: -40OC to 85OC Package Type E: SOT-2X Number of Pins Y: 6 Special Feature L: Low Profile Y: Lead Free & Low Profile Z: Lead Free 3 AME, Inc. AME8824 300mA CMOS LDO n Ordering Information (contd.) Part Number Marking Output Voltage Package Operating Temp. Range AME8824AEEY AUEww ADJ SOT-26 - 40oC to + 85oC AME8824AEEYL AUEww ADJ TSOT-26 - 40oC to + 85oC AME8824AEEYY AUEww ADJ TSOT-26 - 40oC to + 85oC AME8824AEEYZ AUEww ADJ SOT-26 - 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 Maximum Unit 8 V PD / (VIN - VO) mA GND - 0.3 to VIN + 0.3 V Input Voltage Output Current Input, Output Voltage ESD Classification B 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 Unit - 40 to + 85 o C - 40 to + 125 o C n Thermal Information Parameter Thermal Resistance (θja) Internal Power Dissipation (P D ) (∆T = 100oC) 4 Maximum SOT-26 260 SOT-26 380 Unit o C/W mW Maximum Junction Temperature 150 o C Maximum Lead Temperature (10 Sec) 300 o C AME, Inc. AME8824 300mA CMOS LDO n Electrical Specifications TA = 25OC, VIN=5V unless otherwise noted Parameter Symbol Input Voltage VIN Output Voltage VO Dropout Voltage Output Current VDROPOUT Test Condition IO=1mA IO=300mA VO=VONOM -2.0% Min Typ Max Units Note 1 7 V -3 3 % 1.2V<=VO(NOM)<=2.0V 1300 2.0V<VO(NOM)<=2.8V 400 2.8V<VO(NOM)<3.8V 300 mV IO VO>1.2V 300 Current Limit ILIM VO>1.2V 300 Short Circuit Current ISC VO<0.8V 150 300 mA Quiescent Current IQ IO=0mA 30 50 µA Ground Pin Current IGND IO=1mA to 300mA 35 Line Regulation REGLINE Load Regulation REGLOAD Over Temerature Shutdown IO=5mA VO < 2.0V VIN =VO+1 to VO+2 VO >= 2.0V IO=1mA to 300mA OTS mA 450 % 0.02 0.1 % 0.2 1 150 C o C 30 VO Temperature Coefficient TC 30 Output Voltage Noise eN ADJ Input Bias Current IADJ ADJ Reference Voltage VREF f=10Hz to 100kHz IO=10mA,CBYP=0µF ppm/oC f=1kHz 50 f=10kHz 20 f=100kHz 15 Co=2.2µF 30 µVrms 1 µA IO=100mA CO=2.2µF % o OTH PSRR µA 0.15 Over Temerature Hysterisis Power Supply Rejection mA 1.176 1.2 dB 1.224 V VEH VIN =2.7V to 7V 2.0 Vin V VEL VIN =2.7V to 7V 0 0.4 V IEH VEN =VIN , VIN =2.7V to 7V 0.1 µA IEL VEN =0V, VIN =2.7V to 7V 0.5 µA Shutdown Supply Current ISD VIN =5V, VO=0V, VEN <VEL 1 µA Shutdown Output Voltage VO, SD IO=35µA,VEN<VEL 0.1 V 85 %V O(NOM) EN Input Threshold EN Input Bias Current 0.5 0 Output Under Voltage VUV Output Over Voltage VOV PG Leakage Current ILC VPG=7V 1 µA PG Voltage Rating VPG VO in regulation 7 V PG Voltage Low VOL ISINK=0.4mA 0.4 V 115 %V O(NOM) Note1:VIN(min) =VOUT+VDROPOUT 5 AME, Inc. AME8824 300mA CMOS LDO Ground Current vs. Input Voltage Load Step (1mA-300mA) 45 Output VO (5mV/DIV) O 85 C 35 30 25 O 25 C 20 15 IL(200mA/DIV) Ground Current (µ A) 40 10 5 0 0 1 2 3 4 5 6 7 C L =2.2µF C IN =2.2µF I Load 0 8 TIME(20mS/DIV) Input Voltage (V) Power Supply Rejection Ratio Chip Enable Transient Response Enable (2V/DIV) 0 -10 -30 C L=2µF R L=10Ω 0 -40 -50 Output (1V/DIV) PSRR (dB) 100mA CL=2.2µF Tantalum Tantalum C BYP=0 -20 10mA 100mA -60 -70 100 µ A 100 µ A 1mA 0 -80 10 1K 100K 10M TIME (1mS/DIV) Frequency (Hz) Drop Out Voltage vs. Output Voltage Drop Out Voltage vs. Load Current 300 250 200 Dropout Voltage (mV) Drop Out Voltage (mV) 250 I LOAD =300mA 150 I LOAD =200mA 100 I LOAD =100mA 50 0 150 100 50 0 2.5 2.75 3 3.25 3.5 Output Voltage (V) 6 200 Top to bottom bottom VOUT=2.5V VOUT =2.8V VOUT =3.0V VOUT=3.3V VOUT=3.5V VOUT =3.8V 3.75 4 0 50 100 150 200 Load Current (mA) 250 300 AME, Inc. AME8824 300mA CMOS LDO Ground Current vs. Input Voltage Load Step (1mA-300mA) 45 Output VO (5mV/DIV) O 85 C 35 30 25 O 25 C 20 15 IL(200mA/DIV) Ground Current (µ A) 40 10 5 0 0 1 2 3 4 5 6 7 C L =2.2µF C IN =2.2µF I Load 0 8 TIME(20mS/DIV) Input Voltage (V) Power Supply Rejection Ratio Chip Enable Transient Response Enable (2V/DIV) 0 -10 -30 C L=2µF R L=10Ω 0 -40 -50 Output (1V/DIV) PSRR (dB) 100mA CL=2.2µF Tantalum Tantalum C BYP=0 -20 10mA 100mA -60 -70 100 µ A 100 µ A 1mA 0 -80 10 1K 100K 10M TIME (1mS/DIV) Frequency (Hz) Drop Out Voltage vs. Output Voltage Drop Out Voltage vs. Load Current 300 250 200 Dropout Voltage (mV) Drop Out Voltage (mV) 250 I LOAD =300mA 150 I LOAD =200mA 100 I LOAD =100mA 50 0 200 150 Top to bottom bottom VOUT=2.5V VOUT =2.8V VOUT =3.0V VOUT=3.3V VOUT=3.5V VOUT =3.8V 100 50 0 2.5 2.75 3 3.25 3.5 Output Voltage (V) 3.75 4 0 50 100 150 200 250 300 Load Current (mA) 7 AME, Inc. AME8824 300mA CMOS LDO Stability vs. ESR vs. ILoad Stability vs. ESR vs. ILoad 10000 10000 Unstable Region Unstable Region 1000 1000 CL=1µF 10 Stable Region CL=2µF 100 ESR ( Ω ) ESR ( Ω ) 100 10 1 1 0.1 0.1 Stable Region Untested Region Untested Region 0.01 0.01 0 50 100 150 0 200 50 Stability vs. ESR vs. ILoad 150 200 Stability vs. ESR vs. ILoad 10000 10000 Unstable Region Unstable Region 1000 1000 C L=10µF C L=3µF 10 100 ESR ( Ω ) 100 ESR ( Ω ) 100 ILOAD (mA) ILOAD (mA) Stable Region 10 Stable Region 1 1 0.1 Untested Region Untested Region 0.1 0.01 0.001 0.01 0 50 100 150 ILOAD (mA) 8 200 0 50 100 150 ILOAD (mA) 200 AME, Inc. AME8824 300mA CMOS LDO n Package Dimension SOT-26 Top View Side View SYMBOLS D e MILLIMETERS 1.20REF E A H MAX MIN MAX L MIN INCHES θ1 S1 A1 0.00 0.15 0.0000 0.0059 b 0.30 0.55 0.0118 0.0217 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e H 2.60 θ1 3.00 0 o 10 0.10236 0.11811 0.0146REF o 0 o 10 0.95REF 0.0374REF MILLIMETERS INCHES o A1 A S1 0.0748 BSC 0.37REF L Front View 0.0472REF b TSOT-26 Top View Side View SYMBOLS MIN MAX MIN MAX A+A1 0.90 1.25 0.0354 0.0492 b 0.30 0.50 0.0118 0.0197 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 L E θ1 e H S1 L θ1 Front View 2.40 3.00 0.35BSC 0o 10o 0.95BSC 0.07480 BSC 0.09449 0.11811 0.0138BSC 0o 10o 0.0374BSC A S1 1.90 BSC A1 H D e b 9 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. , 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