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AME8831AEEV180Z Datasheet(PDF) 1 Page - Analog Microelectronics |
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AME8831AEEV180Z Datasheet(HTML) 1 Page - Analog Microelectronics |
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1 / 15 page  AME 1 AME8831 150mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application Rev.H.05 n Typical Application l Guaranteed 150mA Output l Dropout Voltage Typically 150 mV at 150 mA l 17 µA Quiescent Current l Over-Temperature Shutdown l Over-Current Limitation l Noise Reduction Bypass Capacitor l Power-Saving Shutdown Mode l Space-Saving SOT-25 Package l Factory Pre-set Output Voltages l Enable pin option l ENB active low enable l EN active high enable l All AME's Lead Free Products Meet RoHS Standards The AME8831 family of positive, linear regulators fea- ture low quiescent current (17 µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-25 package is attractive for “Pocket” and “Hand Held”applications. These rugged devices have both Thermal Shutdown, and Current limitation to prevent device failure under the “Worst” of operating conditions. In applications requires a low noise regulated supply. The AME8831 family uses the SR pin to program the output voltage ’s slew rate to control the in-rush current. This is specifically used in the USB application where large load capacitance is present at start-up. The AME8831 also features a logic-enabled sleep mode to shutdown the regulator, reducing quiescent current to 1 µA typical at T A= 25 oC. The AME8831 is stable with an output capacitance of 4.7 µF or larger. n General Description n Features n Applications l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets l Electronic Scales n Function Block Diagram * AME8831A: ENB, AME8831B: EN AMP Current Limit / Thermal Protection 10 k GND SR V IN V OUT V ref R1 R2 * ENB or EN 4.7 µF + 1 µF AME8831A GND OUT IN ENB SR 0.01 µF V IN 1 µF AME8831B GND OUT IN EN SR 4.7 µF + 0.01 µF V IN |
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