AME, Inc. 150mA CMOS LDO AME8890 n General Description n Functional Block Diagram The AME8890 is a fixed 1.2V of positive, linear regulator feature low quiescent current (30µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-23-5 package is attractive for "Pocket" and "Hand Held" applications. IN OUT Overcurrent Shutdown Thermal Shutdown This rugged device has both Thermal Shutdown, and Current Fold-back to prevent device failure under the "Worst" of operating conditions. EN An additional feature is a "Power Good" detector, which pulls low when the output is out of regulation. The AME8890 is stable with an output capacitor of 2.2µF or greater. R1 AMP PG Delay R2 GND n Features l l l l l l l l l l l Very Low Dropout Voltage Guaranteed 150mA Output Accurate to within 3% 30µA Quiescent Current Over-Temperature Shutdown Current Limiting Short Circuit Current Fold-back Power Good Output Function Power-Saving Shutdown Mode Space-Saving SOT-25 (SOT-23-5) Low Temperature Coefficient n Typical Application IN IN OUT OUT AME8890 PG 5V GND EN C1 C2 1µF 2.2µF n Applications l l l l l l l Instrumentation Portable Electronics Wireless Devices Cordless Phones PC Peripherals Battery Powered Widgets Electronic Scales 1 AME, Inc. 150mA CMOS LDO AME8890 n Pin Configuration SOT-25 Top View 5 4 1. 2. 3. 4. 5. AME8890 1 2 IN GND EN PG OUT 3 n Ordering Information Part Number Marking Output Voltage Package Operating Temp. Range AME8890TEEV ATBww 1.2V SOT-25 -40OC to +85OC ww: represents the date code Please consult AME sales office or authorized Rep./Distributor for other package type availability. 2 AME, Inc. 150mA CMOS LDO AME8890 n Absolute Maximum Ratings Parameter Maximum Unit 7 V Output Current PD / (VIN - VO) mA Output Voltage GND - 0.3 to V IN + 0.3 V Input Voltage ESD Classification B Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device. n Recommended Operating Conditions Parameter Rating -40 to +85 o C -40 to +125 o C Ambient Temperature Range Junction Temperature Unit n Thermal Information Parameter Thermal Resistance (θja) Internal Power Dissipation (PD ) (∆ T = 100oC) Maximum SOT-25 260 SOT-25 380 Unit o C/W mW Maximum Junction Temperature 150 o Maximum Lead Temperature ( 10 Sec) 300 o C C 3 AME, Inc. 150mA CMOS LDO AME8890 n Electrical Specifications V IN = 2.7V, V EN = V IN , I OUT =100 µA,TA = 25 o C unless otherwise noted Parameter Symbol Input Voltage VIN Output Voltage Accuracy VO Dropout Voltage VDROPOUT IO=0.1mA IO=150mA VOUT=VO -2.0% Min Typ Max Units 2.7 6 V -3 3 % 1.0V<VO(NOM) <=2.0V 1300 2.0V<VO(NOM) <=2.8V N/A VO< 0.1V Quiescent Current IQ VIN=6V, IO=0mA, VO=VO(nom) 30 Ground Pin Current IGND VIN=6V, IO =1mA to 150mA 35 Line Regulation REGLINE Load Regulation REGLOAD Over Temperature Shutdown Over Temperature Hysterisis VO Temperature Coefficient Power Supply Rejection Output Voltage Noise EN Input Threshold IO=100 µA VIN=2.7V to 6V 150 1.0<= VO <= 2.0V IO=100 µA to 150mA mV N/A 2.8V<VO(NOM) ILIM Current Limit 350 -0.3 -4 1 mA 50 µA µA 0.3 % 4 % 150 o OTH 30 o TC 30 OTS PSRR eN IO=100mA CO=2.2 µF f=10Hz to 100kHz IO=10mA f=1kHz 50 f=10kHz 20 f=100kHz 15 Co=2.2 µF 30 C C ppm/oC dB µVrms VEH 1.6 Vin V VEL 0 0.4 V IEH VEN=VIN 0.1 µA IEL VEN=0V 0.1 µA Shutdown Supply Current ISD VIN=5V, VO=0V, VEN=0V 0.5 Shutdown Output Voltage VO,SD Output Loading<= 1200 ohm, V=0V Output Under Voltage VUV PG ON @ % of VOUT PG Leakage Current ILC VPG=6V , PG is off PG Voltage Low VOL ISINK=0.1mA TPGD See Timing Diagram on page 6 EN Input Bias Current VPG Delay Note1:V IN(min)=V OUT+V DROPOUT 4 Test Condition 0 1 µA 0.4 V 95 %VO(NOM) µA 0.1 1.5 0.1 V 5 ms AME, Inc. 150mA CMOS LDO AME8890 Output Voltage vs Temperature Quiescent Current vs Temperature 44 Quiescent Current (uA) Output Voltage (V) 1.2025 1.2020 1.2015 1.2010 1.2005 1.2000 -45 -5 25 55 42 40 38 36 34 32 30 -45 85 Temperature (o C) 0.50 2.2 0.45 0.40 0.35 0.30 0.25 25 55 2.0 1.9 1.8 1.7 -45 85 Short Circuit Current vs Temperature 122 120 118 116 114 112 Temperature (o C) 25 55 85 Dropout Voltage vs Temperature Dropout Voltage @ 150mA (V) Short Circuit Current (mA) 124 25 -5 Temperature (o C) Temperature ( C) -5 85 2.1 o 110 -45 55 PG Delay Time vs Temperature 2.3 PG Delay Time (mS) Load Regulation 1-150mA (%) Load Regulation vs Temperature -5 25 Temperature (o C) 0.55 0.20 -45 -5 55 85 1.10 1.05 1.00 0.95 0.90 0.85 -45 -5 25 55 85 o Temperature ( C) 5 AME, Inc. 150mA CMOS LDO AME8890 n Timing Diagram 95% 95% 95% V OUT Fault Condition V EN Min-Max V PG 6 1.5-5ms 1.5-5ms AME, Inc. 150mA CMOS LDO AME8890 n Package Dimension SOT-25 SYMBOLS MILLIMETERS INCHES MIN MAX MIN MAX A 1.00 1.45 0.0394 0.0571 A1 0.00 0.15 0.0000 0.0591 A2 0.70 1.25 0.0276 0.0492 b 0.35 0.55 0.0138 0.0217 C 0.08 0.25 0.0031 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e 0.07480 BSC H 2.60 3.00 0.1024 0.1181 L 0.30 - 0.0118 - θ1 0 S1 0.85 o 10 o 1.05 0 o 0.0335 10 o 0.0413 7 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 2002 Document: 2006-DS8890-A U.S. Headquarter Corporate Headquarter Analog Microelectronics, Inc. AME, Inc. 3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 2F, 189 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel : (408) 988-2388 Fax: (408) 988-2489 Tel : 886 2 2627-8687 Fax : 886 2 2659-2989