AME8804AEEY

Analog Microelectronics, Inc. AME8804 300mA CMOS LDO n General Description The AME8804 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 and SOT-25 packages 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 AME8804 is stable with an output capacitance of 2.2µF or greater. n Features l l l l l l l l l l l l Very Low Dropout Voltage Guaranteed 300mA Output Accurate to within 1.5% 30µA Quiescent Current Over-Temperature Shutdown Current Limiting Short Circuit Current Fold-back Power Good Detector (6 pin version only) Power-Saving Shutdown Mode Space-Saving SOT-26 and SOT-25 Adjustable Output Voltages Low Temperature Coefficient n Applications l l l l l l l n Functional Block Diagram IN Overcurrent Shutdown OUT Instrumentation Portable Electronics Wireless Devices Cordless Phones PC Peripherals Battery Powered Widgets Electronic Scales n Typical Application IN C1 5V AMP ADJ OUT EN IN AME8804 PG G N D ADJ Thermal Shutdown OUT C2 R1 100p C3 2.2 µF EN V ref x 110% 1 µF R2 PG V ref x 90% V ref =1.215V GND V OUT = 1 .215 (R1 +R2)/R2 C2 is unnecessary when R1 or R2 < 20K PG pin is only available in the SOT-26 package option 1 Analog Microelectronics, Inc. AME8804 300mA CMOS LDO n Pin Configuration SOT-26 Top View 6 5 4 SOT-25 Top View 5 4 1 2 3 1. VIN 2. GND 3. EN 4. PG 5. ADJ 6. VOUT 1 2 3 1. VIN 2. GND 3. EN 4. ADJ 5. VOUT n Ordering Information Part Number AME8804AEEY AME8804AEEV Marking Output Voltage Package AAUww AJCww Adjustable Adjustable SOT-26 SOT-25 Operating Temp. Range -40OC to +85OC -40OC to +85OC Please consult AME sales office or authorized Rep./Distributor for other package type availability. 2 Analog Microelectronics, Inc. AME8804 300mA CMOS LDO n Absolute Maximum Ratings Parameter Input Voltage Output Current Input, Output Voltage ESD Classification Maximum 8 Unit V mA V P D / (V IN - V O) GND - 0.3 to V IN + 0.3 B 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 (P D ) (∆ T = 100oC) Thermal Resistance (θja) Internal Power Dissipation (P D ) (∆ T = 100oC) Maximum Junction Temperature Maximum Lead Temperature ( 10 Sec) SOT-25 SOT-25 SOT-26 SOT-26 Maximum 260 380 260 380 150 300 o o Unit C/W mW C/W mW o C C o Caution: Stress above the listed absolute rating may cause permanent damage to the device 3 Analog Microelectronics, Inc. AME8804 300mA CMOS LDO n Electrical Specifications TA = 250C VIN=5V unless otherwise noted Parameter Input Voltage Output Voltage Accuracy Symbol V IN VO IO=300mA V O=V ONOM -2.0% IO=1mA 1.5V