LDS3985PU15R

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STMicroelectronics

VERY LOW DROP AND LOW NOISE BICMOS 300 MA VOLTAGE REGULATOR

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LDS3985PU15R

Active

STMicroelectronics

VERY LOW DROP AND LOW NOISE BICMOS 300 MA VOLTAGE REGULATOR

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DocumentsDatasheet +5

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LDS3985PU15R

Control Features	Shutdown
Current - Output	300 mA
Current - Quiescent (Iq)	150 çA
Current - Supply (Max) [Max]	300 µA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	6-VDFN Exposed Pad
Protection Features	Over Current, Over Temperature
PSRR [Max]	55 dB
PSRR [Min]	50 dB
Supplier Device Package	6-DFN (3x3)
Voltage - Input (Max) [Max]	6 V
Voltage - Output (Min/Fixed)	1.5 V
Voltage Dropout (Max) [Max]	0.25 V

LDS3985 Series

Very low drop and low noise BiCMOS 300 mA voltage regulator

Part	PSRR [Max]	PSRR [Min]	Voltage - Input (Max) [Max]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Number of Regulators	Protection Features	Current - Quiescent (Iq)	Mounting Type	Package / Case	Control Features	Voltage Dropout (Max) [Max]	Output Configuration	Output Type	Current - Supply (Max) [Max]	Current - Output	Voltage - Output (Min/Fixed)	Grade	Qualification
STMicroelectronics LDS3985M28R	55 dB	50 dB	6 V	SOT-23-5	125 °C	-40 °C	1	Over Current Over Temperature	150 çA	Surface Mount	SC-74A SOT-753	Shutdown	0.25 V	Positive	1.81 mOhm	300 µA	300 mA	2.8 V
STMicroelectronics LDS3985PU33R	55 dB	50 dB	6 V	6-DFN (3x3)	125 °C	-40 °C	1	Over Current Over Temperature	150 çA	Surface Mount	6-VDFN Exposed Pad	Shutdown	0.25 V	Positive	1.81 mOhm	300 µA	300 mA	3.3 V
STMicroelectronics LDS3985PU33RY	55 dB	50 dB	6 V	6-DFN (3x3)	85 °C	-40 °C	1	Over Current Over Temperature	150 çA	Surface Mount	6-VDFN Exposed Pad	Shutdown	0.25 V	Positive	1.81 mOhm	300 µA	300 mA	3.3 V	Automotive	AEC-Q100
STMicroelectronics LDS3985M50R	55 dB	50 dB	6 V	SOT-23-5	125 °C	-40 °C	1	Over Current Over Temperature	150 çA	Surface Mount	SC-74A SOT-753	Shutdown	0.25 V	Positive	1.81 mOhm	300 µA	300 mA	5 V
STMicroelectronics LDS3985PU15R	55 dB	50 dB	6 V	6-DFN (3x3)	125 °C	-40 °C	1	Over Current Over Temperature	150 çA	Surface Mount	6-VDFN Exposed Pad	Shutdown	0.25 V	Positive	1.81 mOhm	300 µA	300 mA	1.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.95
	Digi-Reel®	1	$ 0.95
	Tape & Reel (TR)	3000	$ 0.40
		6000	$ 0.38
		15000	$ 0.37

Description

General part information

LDS3985 Series

The LDS3985 provides up to 300 mA, from 2.5 V to 6 V input voltage. It is stable with ceramic and high quality tantalum capacitor. The ultra low drop voltage, low quiescent current and low noise make it suitable for low power applications and battery-powered systems. Shutdown logic control function is available, this means that when the device is used as local regulator, it is possible to put a part of the board in standby, decreasing the total power consumption. Typical applications are mobile phones and similar battery-powered wireless systems, portable information appliances.

Documents

Technical documentation and resources

Datasheet

DS4148

Product Specifications