Integrated Circuits (ICs)

LD2985BM33R

Active

STMicroelectronics

LDO VOLTAGE REGULATOR, FIXED, 2.5 TO 16V IN, 280MV DROP, 3.3V/0.15A OUT, SOT-23-5, -40 TO 125 °C

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DocumentsProduct Change Notice EN Datasheet +5

Integrated Circuits (ICs)

LD2985BM33R

Active

STMicroelectronics

LDO VOLTAGE REGULATOR, FIXED, 2.5 TO 16V IN, 280MV DROP, 3.3V/0.15A OUT, SOT-23-5, -40 TO 125 °C

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DocumentsProduct Change Notice EN Datasheet +5

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LD2985BM33R

Control Features	Enable
Current - Output	150 mA
Current - Quiescent (Iq)	150 çA
Current - Supply (Max) [Max]	4 mA
Mounting Type	Surface Mount
Number of Regulators	1
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Output Configuration	Positive
Package / Case	SOT-753, SC-74A
Protection Features	Over Temperature, Over Current
PSRR	45 dB
Supplier Device Package	SOT-23-5
Voltage - Input (Max) [Max]	16 V
Voltage - Output (Min/Fixed)	3.3 V
Voltage Dropout (Max)	0.575 V

LD2985 Series

Very low drop and low noise voltage regulator with inhibit function

Part	Mounting Type	Package / Case	Current - Quiescent (Iq)	Current - Output	Output Configuration	Number of Regulators	Operating Temperature [Max]	Operating Temperature [Min]	Protection Features	PSRR	Supplier Device Package	Voltage - Output (Min/Fixed)	Control Features	Current - Supply (Max) [Max]	Voltage Dropout (Max)	Voltage - Input (Max) [Max]	Voltage - Output (Min/Fixed) [Min]
STMicroelectronics LD2985BM47R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	4.7 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM35R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5		Enable	4 mA	0.575 V	16 V	3.5 V
STMicroelectronics LD2985AM36R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	3.6 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM18R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	1.8 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM30R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	3 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985AM27R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	2.7 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM285R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	2.85 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM25R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	2.5 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM33R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	3.3 V	Enable	4 mA	0.575 V	16 V
STMicroelectronics LD2985BM50R	Surface Mount	SC-74A SOT-753	150 çA	150 mA	Positive	1	125 °C	-40 C	Over Current Over Temperature	45 dB	SOT-23-5	5 V	Enable	4 mA	0.575 V	16 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	$ 0.57
		10	$ 0.51
		25	$ 0.48
		100	$ 0.39
		250	$ 0.36
		500	$ 0.31
		1000	$ 0.25
	Digi-Reel®	1	$ 0.57
		10	$ 0.51
		25	$ 0.48
		100	$ 0.39
		250	$ 0.36
		500	$ 0.31
		1000	$ 0.25
	N/A	39925	$ 0.55
	Tape & Reel (TR)	3000	$ 0.22
		6000	$ 0.21
		15000	$ 0.20
		30000	$ 0.19

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.

LD2985BM33R

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LD2985BM33R

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Technical Specifications

LD2985 Series

Pricing

Description

LD2985 Series

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LD2985 Series