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LP2985A-33DBVR

Name: LP2985A-33DBVR
Rating: 4.7 (12 reviews)

IC REG LINEAR 3.3V 150MA SOT23-5

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Mfr。パート #LP2985A-33DBVR
パッケージ SOT-23 (DBV)-5
データシート
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仕様

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
OutputConfiguration	Positive
OutputType	Fixed
NumberofRegulators	1
Voltage-Input(Max)	16V
Voltage-Output(Min/Fixed)	3.3V
VoltageDropout(Max)	0.58V @ 150mA
Current-Output	150mA
Current-Quiescent(Iq)	95 µA
Current-Supply(Max)	2.5 mA
PSRR	45dB (1kHz)
ControlFeatures	Enable
ProtectionFeatures	Over Current, Over Temperature, Short Circuit
OperatingTemperature	-40°C ~ 125°C
MountingType	Surface Mount
Package/Case	SC-74A, SOT-753

概要

Description

The LP2985A-33DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable output voltage of 3.3 volts with a maximum output current of 150 mA. The device features high accuracy and low quiescent current, making it suitable for battery-powered applications. The LP2985A-33DBVR operates with an input voltage range from 2.5 to 16 volts and has a dropout voltage of approximately 350 mV at full load. It offers excellent line and load transient response and incorporates several protection features, including current limiting and thermal shutdown, ensuring reliability under various operating conditions. The regulator comes in a small SOT-23-5 package, making it ideal for space-constrained designs. It is commonly used in applications such as portable electronics, communication devices, and sensor modules.

Features

The LP2985A-33DBVR is a low-dropout (LDO) linear voltage regulator. Key features include:
1. Output Voltage: Provides a fixed output of 3.3V.
2. Input Voltage Range: Supports an input voltage range from about 2.1V to 16V.
3. Low Dropout Voltage: Typically around 280 mV at full load.
4. Output Current: Capable of supplying up to 150 mA.
5. High Accuracy: Offers an output voltage accuracy of ±1% at room temperature.
6. Low Quiescent Current: Consumes very low quiescent current, around 55µA, making it energy-efficient.
7. Thermal Protection: Includes built-in thermal overload protection for reliability.
8. Short-Circuit Protection: Comes with current limiting to protect against short circuits.
9. Low Noise: Features low output noise (typically 30 µV RMS) without needing an external bypass capacitor.
10. Package Type: Available in a small SOT-23-5 package, suitable for space-constrained designs.
These features make it well-suited for battery-powered applications, portable devices, and post-regulation for switching supplies.

Package

The LP2985A-33DBVR is a low-dropout (LDO) linear voltage regulator packaged in a SOT-23-5 format. This surface-mount package is compact and commonly used for space-constrained applications.

Pinout

The LP2985A-33DBVR is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. It typically comes in a 5-pin SOT-23 package. The pin functions are as follows:
1. VOUT: This is the output pin where the regulated voltage (3.3V in this case) is provided.
2. GND: The ground pin, which is the reference point for all voltages in the circuit.
3. VIN: The input pin where the unregulated input voltage is supplied.
4. SHDN: The shutdown pin, used to enable or disable the regulator. Pulling this pin low disables the output, reducing power consumption.
5. NC or Bypass: This pin is typically not connected (NC) or can be used for a bypass capacitor to improve noise performance, depending on the specific variant and application requirements.
The LP2985A-33DBVR is designed for applications requiring a 3.3V output and offers features such as low quiescent current and high accuracy.

Manufacturer

The LP2985A-33DBVR is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company renowned for its design and manufacturing of semiconductors and various integrated circuits. These components are used in a wide range of electronic devices and systems, impacting industries such as automotive, industrial, personal electronics, and communications. TI is recognized for its innovation and contributions to the electronics sector, producing products that are integral to modern electronic devices and systems.

Application

The LP2985A-33DBVR is a low-dropout (LDO) voltage regulator with a fixed 3.3V output, commonly used in applications requiring stable voltage regulation. Key application areas include powering microcontrollers, sensors, and other low-power devices in consumer electronics, portable gadgets, wireless communication devices, and battery-operated equipment. Its low quiescent current and high accuracy make it suitable for use in precision analog circuits and energy-efficient applications.

Equivalent

Equivalent products to the LP2985A-33DBVR, a low-dropout (LDO) voltage regulator with a fixed 3.3V output, include:
1. AMS1117-3.3 by Advanced Monolithic Systems
2. MCP1703-3302 by Microchip Technology
3. TLV1117-33 by Texas Instruments
4. NCP1117-3.3 by ON Semiconductor
These alternatives match the output voltage and similar current ratings, though specific electrical characteristics should be compared based on application requirements.