Product Summary

The NCP551 series of fixed output low dropout linear regulators are designed for handheld communication equipment and portable battery powered applications which require low quiescent. The NCP551 series features an ultra?low quiescent current of 4.0 A. 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 F. The device is housed in the micro?miniature TSOP?5 surface mount package. Standard voltage versions are 1.5, 1.8, 2.5, 2.7, 2.8, 3.0, 3.2, 3.3, and 5.0 V. Other voltages are available in 100 mV steps.

Features

Low Quiescent Current of 4.0 A 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 (NCV551, TA = ?40°C to +125°C)
NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
Pb?Free Packages are Available

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
NCP551SN33T1
NCP551SN33T1

ON Semiconductor

Low Dropout (LDO) Regulators 3.3V 150mA CMOS

Data Sheet

Negotiable 
NCP551SN33T1G
NCP551SN33T1G

ON Semiconductor

Low Dropout (LDO) Regulators 3.3V 150mA CMOS w/Enable

Data Sheet

0-1: $0.31
1-25: $0.28
25-100: $0.20
100-500: $0.17