NCP551: 150 mA CMOS Low Quiescent Current Low Dropout Linear Voltage Regulator

Datasheet: 150 mA CMOS Low Iq Low-Dropout Voltage Regulator Rev. 17 (172.0kB)	»View Reliability Data »View Material Composition »Product Change Notification (11)
Product Overview

The NCP551 series of fixed output low dropout (LDO) linear voltage regulators are designed for applications which require low quiescent current. The NCP551 series features an ultra-low quiescent current of 4.0 µA. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, resistors for setting output voltage, current limit, and temperature limit protection circuits.

The NCP551 has been designed to be used with low cost ceramic capacitors and requires a minimum output capacitor of 0.1 µF. The device is housed in the micro miniature TSOP-5 surface mount package. Standard voltage versions are 1.4, 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.3, and 5.0 V. Other voltages are available in 100 mV steps.

Features
Low quiescent current of 4.0 µA typical
Maximum Operating Voltage of 12 V
Low Output Voltage Option
High Accuracy Output Voltage of 2.0%
Industrial Temperature Range of –40° C to 85° C

Applications		End Products
Battery Powered Instruments Hand–Held Instruments Communication Equipment Consumer		Camcorders and Cameras

Technical Documentation & Design Resources
Selector Guides (1)	Package Drawings (1)
Data Sheets (1)