AME8821 Datasheet PDF | Analog Microelectronics

Analog Microelectronics AME8821

The AME8821 family of positive, linear regulators feature low quiescent current (17µA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving SOT-25/TSOT-25 packages are attractive for “Pocket” and “Hand Held”applications. These rugged devices have both Thermal Shutdown, and Current Limitation to prevent device failure under the “Worst” operating conditions.

Part No.	AME8821
Datasheet	AME8821 Download
Manufacturer	Analog Microelectronics
Description	Low-Quiescent LDO
Buy	Stock & Price

GENERAL DESCRIPTION

250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application n

APPLICATIONS

l Instrumentation l Portable Electronics l Wireless Devices l Cordless Phones l PC Peripherals l Battery Powered Widgets In application requires a low noise regulated supply. The AME8821 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 AME8821 also features a logic-enabled sleep mode to shutdown the regulator, reducing quiescent current to 1µA typical at T A= 25oC. The AME8821 is stable with an output capacitance of 4.7µF or larger. n Function Block Diagram VIN * ENB or EN 10KΩ AMP Vref GND R2 SR VOUT Current Limit / Thermal Protection R1 * AME8821A: ENB, AME8821B: EN n

FEATURES

l Guaranteed 250mA Output l 17µA Quiescent Current l Over-Temperature Shutdown l Over-Current Limitation l Noise Reduction SR Capacitor l Power...