AME8890

AME, Inc. AME8890 150mA CMOS LDO n General Description 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. 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 2.2µF 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% 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 PG GND OUT EN OUT AME8890 C1 5V 1 µF C2 2.2 µF 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 (θja) 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 µA,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