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| AME, Inc. AME8890 150mA CMOS LDO n General Description The AME8890 is a fixed 1.2V of positive, linear regulator feature low quiescent current (30A 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. This rugged device has 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 AME8890 is stable with an output capacitor of 2.2F or greater. n Functional Block Diagram IN Overcurrent Shutdown Thermal Shutdown OUT EN AMP R1 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% 30A 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 PG GND OUT EN OUT AME8890 C1 5V 1F C2 2.2F 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. AME8890 150mA CMOS LDO n Pin Configuration SOT-25 Top View 5 4 AME8890 1. 2. 3. 4. 5. IN GND EN PG OUT 1 2 3 n Ordering Information Part Number AME8890TEEV Marking ATBww Output Voltage 1.2V Package SOT-25 Operating Temp. Range -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. AME8890 150mA CMOS LDO n Absolute Maximum Ratings Parameter Input Voltage Output Current Output Voltage ESD Classification Maximum 7 PD / (VIN - VO) GND - 0.3 to V IN + 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 (PD ) ( T = 100oC) Maximum Junction Temperature Maximum Lead Temperature ( 10 Sec) SOT-25 SOT-25 Maximum 260 380 150 300 Unit o C/W mW o C C o 3 AME, Inc. AME8890 150mA CMOS LDO n Electrical Specifications V IN = 2.7V, V EN = V IN , I OUT =100 A,TA = 25 o C unless otherwise noted Parameter Input Voltage Output Voltage Accuracy Symbol VIN VO VDROPOUT ILIM IQ IGND REGLINE REGLOAD OTS OTH TC Test Condition IO=0.1mA IO=150mA VOUT=VO -2.0% 1.0V 2.7 -3 Typ Max 6 3 1300 N/A N/A Units V % Dropout Voltage mV Current Limit Quiescent Current Ground Pin Current 150 350 30 35 50 mA A A 0.3 % Line Regulation -0.3 Load Regulation Over Temperature Shutdown Over Temperature Hysterisis VO Temperature Coefficient Power Supply Rejection IO=100 A to 150mA -4 1 150 30 30 4 % o o C C ppm/oC dB f=1kHz PSRR IO=100mA CO=2.2 F f=10Hz to 100kHz IO=10mA f=10kHz f=100kHz Co=2.2 F 1.6 0 VEN=VIN VEN=0V VIN=5V, VO=0V, VEN=0V Output Loading<= 1200 ohm, V=0V PG ON @ % of VOUT VPG=6V , PG is off ISINK=0.1mA See Timing Diagram on page 6 1.5 0 50 20 15 30 Vin 0.4 0.1 0.1 0.5 1 0.4 95 0.1 0.1 5 Vrms V V A A A V %VO(NOM) A V ms Output Voltage Noise eN VEH VEL IEH IEL ISD VO,SD VUV ILC VOL TPGD EN Input Threshold EN Input Bias Current Shutdown Supply Current Shutdown Output Voltage Output Under Voltage PG Leakage Current PG Voltage Low VPG Delay Note1:V IN(min)=V OUT+V DROPOUT 4 AME, Inc. AME8890 Output Voltage vs Temperature 1.2025 1.2020 1.2015 44 150mA CMOS LDO Quiescent Current vs Temperature Quiescent Current (uA) -5 25 55 85 Output Voltage (V) 42 40 38 36 34 32 30 -45 1.2010 1.2005 1.2000 -45 Temperature (o C) -5 25 55 85 Temperature (o C) Load Regulation vs Temperature Load Regulation 1-150mA (%) 0.55 0.50 0.45 0.40 0.35 0.30 0.25 0.20 -45 2.3 2.2 PG Delay Time vs Temperature PG Delay Time (mS) 2.1 2.0 1.9 1.8 1.7 -45 -5 25 o 55 85 -5 25 55 85 Temperature ( C) Temperature (o C) Short Circuit Current vs Temperature 122 120 118 116 114 112 110 -45 Dropout Voltage vs Temperature Dropout Voltage @ 150mA (V) 1.10 124 Short Circuit Current (mA) 1.05 1.00 0.95 0.90 -5 Temperature (o C) 25 55 85 0.85 -45 -5 25 o 55 85 Temperature ( C) 5 AME, Inc. AME8890 150mA CMOS LDO n Timing Diagram 95% 95% 95% V OUT Fault Condition V EN Min-Max V PG 1.5-5ms 1.5-5ms 6 AME, Inc. AME8890 150mA CMOS LDO n Package Dimension SOT-25 MILLIMETERS MIN A A1 A2 b C D E e H L 1.00 0.00 0.70 0.35 0.08 2.70 1.40 SYMBOLS INCHES MIN 0.0394 0.0000 0.0276 0.0138 0.0031 0.1063 0.0551 MAX 1.45 0.15 1.25 0.55 0.25 3.10 1.80 MAX 0.0571 0.0591 0.0492 0.0217 0.0098 0.1220 0.0709 1.90 BSC 2.60 0.30 0 o 0.07480 BSC 0.1024 0.0118 o 3.00 10 0.1181 10 o 0.0413 1 S1 0 o 0.85 1.05 0.0335 7 www.ame.com.tw E-Mail: info@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. , June 2002 Document: 2006-DS8890-A U.S. Headquarter Analog Microelectronics, Inc. 3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 Tel : (408) 988-2388 Fax: (408) 988-2489 Corporate Headquarter AME, Inc. 2F, 189 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel : 886 2 2627-8687 Fax : 886 2 2659-2989 |
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