791 pcs LP2989IM-1.8 IC REG LDO 1.8V .5A

Description

LP2989LV Micropower and Low-Noise, 500-mA Ultra Low-Dropout Regulator for Use With
Ceramic Output Capacitors
1 Features 3 Description
The LP2989LV is a fixed-output 500-mA precision 1• 2.1-V to 16-V Input Voltage Range
• Ultra-Low Dropout Voltage LDO regulator designed for use with ceramic output capacitors.
• 500-mA Continuous Output Current
Output noise can be reduced to 18 μV (typical) by
• Very Low Output Noise With External Capacitor connecting an external 10-nF capacitor to the bypass
• < 0.8-μA Quiescent Current When Shut Down pin.
• Low Ground Pin Current at All Loads Using an optimized Vertically Integrated PNP (VIP)
• 0.75% Output Voltage Accuracy (A Grade) process, the LP2989LV delivers superior
• High Peak Current Capability (800-mA typical) performance:
• Overtemperature and Overcurrent Protection Ground Pin Current: Typically 3 mA at 500-mA load,
• −40°C to +125°C Junction Temperature Range and 110 μA at 100-μA load.
Sleep Mode: The LP2989LV draws less than 0.8-μA
2 Applications quiescent current when SHUTDOWN pin is pulled
• Notebooks and Desktop PCs low.
• PDAs and Palmtop Computers ERROR Flag: The built-in ERROR flag goes low
• Wireless Communication Pins when the output drops approximately 5% below nominal.
• SMPS Post-Regulators
Precision Output: Output voltage accuracy is 0.75%
(A grade) and 1.25% (standard grade) at room
temperature.
For output voltages greater than or equal to 2 V, see
the LP2989 (SNVS083) data sheet.