LD2985BM50R

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STMicroelectronics

VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR WITH INHIBIT FUNCTION

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LD2985BM50R

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STMicroelectronics

VERY LOW DROP AND LOW NOISE VOLTAGE REGULATOR WITH INHIBIT FUNCTION

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Description Specifications Series Pricing CAD Documents

Description

General part information

LD2985 Series

The LD2985 is a 150 mA fixed output voltage regulator. The ultra low drop voltage and the low quiescent current make them particularly suitable for low noise, low power applications, and in battery powered systems. In sleep mode quiescent current is less than 1 μA when INHIBIT pin is pulled low. Shutdown logic control function is available on pin 3 (TTL compatible). 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. An external capacitor, CBYP= 10 nF, connected between bypass pin and GND reduces the noise to 30 μVrms. Typical application are in cellular phone, palmtop laptop computer, personal digital assistant (PDA), personal stereo, camcorder and camera.

Technical Specifications

Parameters and characteristics for this part

Specification	LD2985BM50R

Control Features	Enable
Current - Output	150 mA
Current - Quiescent (Iq)	150 µA
Current - Supply (Max)	4 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Output Configuration	Positive
Output Type	Fixed
Package Name	SOT-23-5
Protection Features	Over Current, Over Temperature
PSRR	45 dB
Voltage - Input (Max)	16 V
Voltage - Output (Min/Fixed)	5 V
Voltage Dropout (Max)	0.575 V

LD2985 Series

Very low drop and low noise voltage regulator with inhibit function

Part	Mounting Type	Current - Quiescent (Iq)	Current - Output	Output Configuration	Number of Regulators	Operating Temperature (Max)	Operating Temperature (Min)	Protection Features	PSRR	Package Name	Voltage - Output (Min/Fixed)	Control Features	Current - Supply (Max)	Output Type	Voltage Dropout (Max)	Voltage - Input (Max)
STMicroelectronics LD2985BM47R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	4.7 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM35R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	3.5 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985AM36R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	3.6 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM18R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	1.8 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM30R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	3 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985AM27R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	2.7 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM285R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	2.85 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM25R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	2.5 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM33R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	3.3 V	Enable	4 mA	Fixed	0.575 V	16 V
STMicroelectronics LD2985BM50R	Surface Mount	150 µA	150 mA	Positive	1	125 °C	-40 °C	Over Current Over Temperature	45 dB	SOT-23-5	5 V	Enable	4 mA	Fixed	0.575 V	16 V