NCP3985 Series

150 mA Low Noise, Low Dropout Linear Voltage Regulator

Catalog

150 mA Low Noise, Low Dropout Linear Voltage Regulator

Part	Voltage Dropout (Max) [Max]	Current - Quiescent (Iq)	Output Configuration	Voltage - Input (Max) [Max]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Control Features	Output Type	Current - Supply (Max) [Max]	Mounting Type	Number of Regulators	Protection Features	Current - Output	Package / Case	Voltage - Output (Min/Fixed)	PSRR [Max]	PSRR [Min]
ON Semiconductor NCP3985SN25T1G	0.155 V	90 çA	Positive	5.5 V	5-TSOP	85 °C	-40 °C	Enable	1.81 mOhm	220 µA	Surface Mount	1	Over Current Over Temperature	150 mA	SOT-23-5 Thin TSOT-23-5	2.5 V	70 dB	55 dB
ON Semiconductor NCP3985SN275T1G	0.155 V	90 çA	Positive	5.5 V	5-TSOP	85 °C	-40 °C	Enable	1.81 mOhm	220 µA	Surface Mount	1	Over Current Over Temperature	150 mA	SOT-23-5 Thin TSOT-23-5	2.75 V	70 dB	55 dB
ON Semiconductor NCP3985SN18T1G		90 çA	Positive	5.5 V	5-TSOP	85 °C	-40 °C	Enable	1.81 mOhm	220 µA	Surface Mount	1	Over Current Over Temperature	150 mA	SOT-23-5 Thin TSOT-23-5	1.8 V	70 dB	55 dB
ON Semiconductor NCP3985SN28T1G	0.155 V	90 çA	Positive	5.5 V	5-TSOP	85 °C	-40 °C	Enable	1.81 mOhm	220 µA	Surface Mount	1	Over Current Over Temperature	150 mA	SOT-23-5 Thin TSOT-23-5	2.8 V	70 dB	55 dB
ON Semiconductor NCP3985SN30T1G	0.15 V	90 çA	Positive	5.5 V	5-TSOP	85 °C	-40 °C	Enable	1.81 mOhm	220 µA	Surface Mount	1	Over Current Over Temperature	150 mA	SOT-23-5 Thin TSOT-23-5		70 dB	55 dB
ON Semiconductor NCP3985SN33T1G	0.15 V	90 çA	Positive	5.5 V	5-TSOP	85 °C	-40 °C	Enable	1.81 mOhm	220 µA	Surface Mount	1	Over Current Over Temperature	150 mA	SOT-23-5 Thin TSOT-23-5	3.3 V	70 dB	55 dB

Catalog

150 mA Low Noise, Low Dropout Linear Voltage Regulator

Key Features

• Output Voltage Options:1.8 V, 2.8 V, 3.0 VContact Factory for Other Voltage Options

• Output Current Limit 200 mA

• Low Noise (typ 20 µVrms)

• High PSRR (typ 70 dB)

• Stable with Ceramic Output Capacitors as low as 1 µF

• Low Sleep Mode Current (max 1 µA)

• Active Discharge Circuit

• Current Limit Protection

• Thermal Shutdown Protection

• Direct Replacement for LP3985

• These are Pb-Free Devices

Description

The NCP3985 is 150 mA LDO Linear Voltage Regulator that provides the engineer with a very stable, accurate voltage with low noise and high Power Supply Rejection Ratio (PSRR) suitable for sensitive applications. In order to optimize performance for battery operated portable applications, the NCP3985 employs an advanced BiCMOS process to combine the benefits of low noise and superior dynamic performance of bipolar elements with very low ground current consumption at full loads offered by CMOS. The NCP3985 is stable with small, low value capacitors and is available in TSOP-5 package.